Tenebrionidae

Guides

• Adelina pallida

  Orange Lacquer Beetle

  Adelina pallida, commonly known as the Orange Lacquer Beetle, is a species of darkling beetle in the family Tenebrionidae. It is distributed in parts of North America and South America, with confirmed records from Mexico and Colombia. The species was first described by Thomas Say in 1824. As a member of Tenebrionidae, it belongs to a large family of beetles primarily adapted to arid and semi-arid environments.

  Tenebrionidaedarkling-beetleColeopteraNorth-AmericaSouth-America

• Adelonia sulcatula

  Adelonia sulcatula is a small darkling beetle (family Tenebrionidae) described by Champion in 1885. The species is known from limited specimens and observations in coastal northern South America and Mexico. It belongs to a genus of beetles adapted to arid and semi-arid environments. Available records suggest it is rarely encountered and poorly studied.

  Tenebrionidaedarkling-beetleColeopteraChampion-1885Neotropicalcoastalrarely-recordeddata-deficient

• Alaudes

  Alaudes is a genus of darkling beetles in the family Tenebrionidae, subfamily Pimeliinae, tribe Cnemeplatiini. The genus was revised in 2018, resulting in the description of new species from the southwestern United States and Mexico. It belongs to the subtribe Alaudina, which was established as part of that revisionary work. Members of this genus are part of a diverse radiation of tenebrionid beetles adapted to arid and semi-arid environments.

  darkling-beetledesert-beetleCnemeplatiiniAlaudinaSouthwestern-USAMexicoPimeliinaeTenebrionidaeColeoptera2018-revisionnew-species-description

• Alaudes californicus

  Alaudes californicus is a species of darkling beetle in the family Tenebrionidae, described by Aalbu, Caterino & Smith in 2018. The species is known from California and is one of few representatives of the genus Alaudes documented in the region. As a recently described species, detailed biological information remains limited.

  ColeopteraTenebrionidaedarkling-beetleCalifornia-endemicrecently-described

• Alaudes coloradoensis

  Alaudes coloradoensis is a darkling beetle species described in 2018 from Colorado. It belongs to the genus Alaudes in the family Tenebrionidae. The species was erected based on morphological distinctions from congeners. No ecological or behavioral studies have been published.

  Tenebrionidaedarkling-beetleColorado2018-descriptionrecently-described-species

• Alaudes moenkopii

  Alaudes moenkopii is a species of darkling beetle in the family Tenebrionidae, described in 2018 from the southwestern United States. The species epithet refers to the Moenkopi Formation, a geological formation in northern Arizona where the type specimens were collected. It belongs to a small genus of flightless, ground-dwelling beetles adapted to arid environments. As a recently described species, detailed ecological and behavioral information remains limited.

  Tenebrionidaedarkling-beetleflightlessArizonaMoenkopi-Formation2018-description

• Alethia

  Alethia is a genus of darkling beetles (family Tenebrionidae) described by Champion in 1888. The genus occurs in the Nearctic and Neotropical regions. Members of this genus are small beetles within the speciose family Tenebrionidae, which comprises primarily detritivorous and fungivorous species.

  beetledarkling-beetleTenebrionidaeColeopteraNearcticNeotropical

• Alleculina

  comb-clawed beetles

  Alleculina is a subtribe of comb-clawed beetles within the darkling beetle family Tenebrionidae. Members of this group were formerly classified as a separate family (Alleculidae) but have been reclassified as a subfamily (Alleculinae) and subsequently as a subtribe within the Tenebrionidae. These beetles do not resemble 'classic' darkling beetles in appearance, presenting a challenge for identification. The subtribe includes genera such as Hymenorus.

  TenebrionidaeAlleculinaecomb-clawed-beetlesColeopteradarkling-beetlestaxonomic-revisionsubtribe

• Alobates barbatus

  Alobates barbatus is a species of darkling beetle in the family Tenebrionidae, described by Knoch in 1801. The genus Alobates is part of a diverse family of beetles commonly found in terrestrial habitats. The specific epithet 'barbatus' refers to a bearded or hairy characteristic, likely describing some aspect of the beetle's morphology. As with many Tenebrionidae, this species is likely associated with decaying organic matter and soil habitats.

  darkling-beetleTenebrionidaeColeoptera

• Alobates pensylvanicus

  false mealworm beetle

  Alobates pensylvanicus, commonly known as the false mealworm beetle, is a species of darkling beetle in the family Tenebrionidae. It is native to North America and has been documented as a host for parasitic mite larvae, specifically Neotrombidium beeri, which occupy the subelytral space of adult beetles. The species is part of the diverse tenebrionid fauna associated with decaying organic matter and forest floor habitats.

  Tenebrionidaedarkling-beetlemite-hostparasitismNeotrombidium-beeriNorth-America

• Alphitophagus bifasciatus

  Two-banded fungus beetle

  Alphitophagus bifasciatus is a small darkling beetle (family Tenebrionidae) with an almost cosmopolitan distribution. The species is frequently associated with stored products and organic matter, and has been documented as an intermediate host for the poultry tapeworm Raillietina cesticillus. It is distinguished from the rare congener A. obtusangulus by its two pale transverse bands on the elytra.

  Tenebrionidaestored-productsveterinary-parasitologyintermediate-hostcosmopolitan

• Ammodonus fossor

  Ammodonus fossor is a species of darkling beetle (family Tenebrionidae) described by LeConte in 1847. The species epithet "fossor" (Latin for "digger") suggests fossorial (burrowing) habits, though specific behavioral documentation is limited. It is recorded from Ontario, Canada, with relatively few observations available. As a member of Tenebrionidae, it belongs to a large and diverse family of beetles primarily associated with arid and semi-arid environments, though many species occupy varied habitats.

  beetleColeopteraTenebrionidaedarkling-beetleNorth-AmericaCanadaOntario

• Ammodonus tropicus

  Ammodonus tropicus is a species of darkling beetle in the family Tenebrionidae, described by Kirsch in 1866. It belongs to the tribe Ammodoniini, a group of small to medium-sized tenebrionids often associated with sandy or arid habitats. The species epithet 'tropicus' suggests a tropical distribution, which aligns with records from Colombia and Mexico.

  Tenebrionidaedarkling-beetletropicalColombiaMexicoKirsch-1866AmmodoniiniColeopteraPolyphaga

• Anaedus

  Anaedus is a genus of darkling beetles in the family Tenebrionidae, first described by Blanchard in 1842. Members of this genus are found in the Neotropical region, with confirmed records from Colombia. As with many tenebrionid genera, species-level taxonomy and natural history remain incompletely documented.

  darkling-beetleTenebrionidaeNeotropicalColeoptera

• Anchomma costatum

  Anchomma costatum is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1858. It belongs to a genus of North American beetles. The species is known from limited collection records and appears to be rarely encountered, with only five documented observations on iNaturalist. As with many tenebrionid beetles, it likely inhabits arid or semi-arid environments, though specific ecological details remain poorly documented.

  darkling-beetleTenebrionidaeColeopteraLeConte-1858North-Americararely-collected

• Androchirus

  Androchirus is a genus of darkling beetles in the family Tenebrionidae. Species in this genus are found in western North America, particularly in arid and semi-arid regions. The genus was established by John Lawrence LeConte in 1862. Based on iNaturalist observations, the genus is moderately well-documented with over 500 records.

  Tenebrionidaedarkling-beetleNorth-AmericadesertaridLeConte-1862

• Anepsius delicatulus

  Anepsius delicatulus is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1851. The species is known from Mexico based on distribution records. Very little published information exists regarding its biology, morphology, or ecology. As a member of Tenebrionidae, it belongs to a large family of beetles primarily associated with arid and semi-arid environments, though specific habitat preferences for this species remain undocumented.

  Tenebrionidaedarkling-beetleMexicoLeConte-1851Coleoptera

• Anepsius montanus

  Mountain Darkling Beetle

  Anepsius montanus is a darkling beetle (Tenebrionidae) described by Casey in 1891. The species is known from Alberta, Canada, with very few documented observations. As a member of the genus Anepsius, it belongs to a group of tenebrionid beetles typically associated with dry, often montane habitats. The common name "Mountain Darkling Beetle" reflects its alpine or subalpine distribution pattern.

  darkling-beetleTenebrionidaeColeopteraAlbertamontanerareCasey-1891

• Anoplochares apicata

  Anoplochares apicata is a species of darkling beetle in the family Tenebrionidae. The genus Anoplochares is endemic to New Zealand, and this species represents one of several described members of this genus. Like other tenebrionids, it is adapted to arid or semi-arid environments and exhibits nocturnal habits. The species has been documented in the scientific literature but remains poorly known in terms of detailed biology.

  endemicNew-ZealandTenebrionidaedarkling-beetlenocturnalpoorly-known

• Apocrypha anthicoides

  Apocrypha anthicoides is a species of darkling beetle in the family Tenebrionidae, described by Eschscholtz in 1831. It belongs to a genus of relatively obscure beetles with limited published natural history information. The species epithet 'anthicoides' suggests a resemblance to beetles in the family Anthicidae (ant-like flower beetles), likely referring to its body form or ant-mimicking appearance. Available records indicate this is a rarely encountered species with minimal documentation in entomological literature.

  Tenebrionidaedarkling-beetleEschscholtz-1831rarely-documented

• Apocryphini

  Apocryphini is a tribe of darkling beetles in the family Tenebrionidae, established by Lacordaire in 1859. The tribe comprises at least four genera distributed across North America, the Palearctic, and the Neotropics. Members are classified within the subfamily Tenebrioninae.

  darkling-beetlesTenebrionidaeTenebrioninaetribeColeoptera

• Apsena

  Apsena is a genus of darkling beetles (family Tenebrionidae) described by LeConte in 1862. Species in this genus are found in the Nearctic region. The genus contains multiple species, with over 800 observations documented on iNaturalist. As with other tenebrionids, members of this genus are likely associated with arid or semi-arid environments, though specific ecological details remain limited in published literature.

  darkling-beetlesNearcticTenebrionidaeLeConte-1862

• Apsena grossa

  Apsena grossa is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1866. As a member of this large and diverse family, it shares the characteristic hardened forewings (elytra) typical of beetles. The genus Apsena contains multiple species, though detailed biological information for A. grossa specifically remains limited in published literature.

  darkling-beetleTenebrionidaeColeopteraLeConte-1866

• Apsida

  Apsida is a genus of darkling beetles in the family Tenebrionidae, first described by Lacordaire in 1859. The genus is distributed across the Nearctic and Neotropical regions, with records from Colombia. As a member of the diverse Tenebrionidae family, these beetles are likely adapted to arid or semi-arid environments typical of many tenebrionid lineages.

  beetledarkling-beetleColeopteraTenebrionidaeNearcticNeotropical

• Araeoschizus

  Araeoschizus is a genus of darkling beetles (family Tenebrionidae) in the tribe Stenosini. The genus was established by John Lawrence LeConte in 1851. Members of this genus are part of the subfamily Pimeliinae, a diverse group of tenebrionids often associated with arid and semi-arid environments. The genus is native to western North America.

  darkling-beetlesTenebrionidaeStenosiniNorth-American-beetles

• Argoporis

  Argoporis is a genus of darkling beetles in the family Tenebrionidae, established by Horn in 1870. The genus contains more than 20 described species distributed across North America. Members of this genus are part of the diverse tenebrionid fauna characteristic of arid and semi-arid regions.

  darkling-beetleTenebrionidaeNorth-AmericaColeoptera

• Argoporis alutacea

  Argoporis alutacea is a species of darkling beetle in the family Tenebrionidae, described by Casey in 1890. The genus Argoporis is part of a diverse group of beetles commonly found in arid and semi-arid environments. Very little specific biological information has been published for this species. Records indicate a distribution in Mexico.

  Tenebrionidaedarkling-beetleColeopteraMexicoCasey-1890Argoporislittle-known-speciesdata-deficient

• Argoporis costipennis

  Argoporis costipennis is a species of darkling beetle in the family Tenebrionidae, originally described by LeConte in 1851. It belongs to the genus Argoporis, which comprises flightless beetles endemic to western North America. The species is recorded from Mexico (MX) and has been documented through 17 iNaturalist observations as of the available data. Like other members of its genus, it is likely adapted to arid or semi-arid environments typical of the region.

  Tenebrionidaedarkling-beetleMexicoLeConte-1851flightless-beetle

• Argoporis rufipes

  Argoporis rufipes is a species of darkling beetle in the family Tenebrionidae. The species name "rufipes" refers to reddish legs, a common diagnostic trait in this genus. Records indicate occurrence in Mexico. As a member of Tenebrionidae, it likely inhabits arid or semi-arid environments, though specific ecological details remain poorly documented in available sources.

  Tenebrionidaedarkling-beetleMexicoColeoptera

• Armalia angularis

  Armalia angularis is a species of darkling beetle in the family Tenebrionidae, described by Thomas L. Casey in 1907. The genus Armalia is a small group within this large family of beetles. Information regarding the biology, distribution, and ecology of this species is extremely limited in the available literature.

  darkling-beetleTenebrionidaeArmaliaCasey-1907Coleoptera

• Armalia texana

  Armalia texana is a species of darkling beetle in the family Tenebrionidae, described by LeConte in 1866. The genus Armalia is a small group within this large family, and A. texana appears to be primarily associated with arid and semi-arid regions of the southwestern United States and adjacent Mexico. Like other tenebrionids, this species is likely nocturnal and adapted to xeric conditions. The specific epithet "texana" indicates the type locality or primary association with Texas.

  ColeopteraTenebrionidaedarkling-beetleSouthwest-USTexasxeric-adaptednocturnal-beetle

• Arthromacra

  Arthromacra is a genus of darkling beetles in the family Tenebrionidae, established by Kirby in 1837. The genus is native to North America and has been recorded from the northeastern United States, particularly Vermont. Members of this genus are part of the diverse darkling beetle fauna that inhabits forested and terrestrial environments. The genus is represented by approximately 1,850 observations on iNaturalist, indicating moderate documentation of its species in the field.

  darkling-beetlesNorth-Americaforest-beetlesTenebrionidae

• Arthromacra pilosella

  A species of darkling beetle in the family Tenebrionidae, subfamily Lagriinae. The genus Arthromacra is a small group of lagriine beetles distributed in North America. Very little published information exists regarding the biology, ecology, or even precise distribution of A. pilosella. The species name 'pilosella' (Latin diminutive of 'pilosus', meaning hairy) likely refers to a fine pubescence on the body surface. Based on the few available specimen records, the species appears to be associated with forested or woodland habitats in eastern North America.

  TenebrionidaeLagriinaedarkling-beetleNorth-Americararepoorly-known

• Asbolus

  blue death-feigning beetles

  Asbolus is a small genus of darkling beetles (family Tenebrionidae) native to the southwestern United States and Mexico. The genus contains four species, including the well-known Asbolus verrucosus, commonly called the blue death-feigning beetle. These beetles are adapted to arid desert environments and exhibit a distinctive blue coloration derived from a waxy coating that prevents desiccation. The genus is notable for its thanatosis behavior—playing dead when threatened.

  desert-beetlethanatosisdeath-feigningwax-coatinganti-desiccationdarkling-beetleTenebrionidaeMojave-Desertpet-tradeinsect-zoo

• Asbolus laevis

  Asbolus laevis is a darkling beetle (family Tenebrionidae) native to the southwestern United States and northwestern Mexico. First described by LeConte in 1851, it inhabits arid, sandy environments including the Sonoran Desert. The species is distinguished from its congener Asbolus verrucosus by its smaller size, smooth glossy black exoskeleton, and finely dotted elytra with marginal studded points.

  Tenebrionidaedarkling-beetledesert-beetleSonoran-Desertsouthwestern-North-AmericaLeConte-1851smooth-death-feigning-beetle

• Asbolus mexicanus

  Asbolus mexicanus is a darkling beetle species described by Champion in 1884. It occurs in the southwestern United States and northern Mexico, inhabiting arid environments with sandy or scrubby vegetation. The species was originally distinguished from congeners by its opaque, broader, and less convex body form, with a flatter thorax and characteristic elytral punctation.

  darkling-beetledesert-beetlearid-habitat-specialistTenebrionidaeSouthwestern-North-America

• Asbolus papillosus

  Asbolus papillosus is a darkling beetle (family Tenebrionidae) native to the southwestern United States and northwestern Mexico. It inhabits arid, sandy environments including the Sonoran Desert. The species is distinguished from congeners by its granular elytra and relatively short tarsal hairs. Like other members of the genus, it likely exhibits thanatosis (death-feigning behavior) as an antipredator defense, though this has not been specifically documented for this species.

  darkling-beetledesert-beetleSonoran-DesertTenebrionidaegranular-elytrathanatosissouthwestern-North-Americaarid-habitatsand-dwellingcryptic-coloration

• Asiopus minimus

  Asiopus minimus is a species of darkling beetle (family Tenebrionidae) within the order Coleoptera. The genus Asiopus is part of the diverse tenebrionid fauna, though specific biological details for this species remain poorly documented in accessible literature. Based on family-level characteristics, members of this group are generally associated with arid or semi-arid environments and are often nocturnal or crepuscular in activity patterns.

  Tenebrionidaedarkling-beetleColeopteraunderstudied-species

• Batuliomorpha comata

  Batuliomorpha comata is a species of darkling beetle in the family Tenebrionidae, described by Doyen in 1987. The genus Batuliomorpha is part of the diverse tenebrionid fauna of western North America. Very little published information exists on the biology or ecology of this particular species.

  Tenebrionidaedarkling-beetleColeopterawestern-North-America

• Batulius setosus

  Batulius setosus is a darkling beetle in the family Tenebrionidae, described by LeConte in 1851. The species is known from Mexico, with confirmed distribution records from that country. As a member of the genus Batulius, it belongs to a group of tenebrionid beetles found in arid and semi-arid regions of western North America.

  darkling-beetleTenebrionidaeLeConte-1851MexicoColeoptera

• Bius

  Bius is a genus of darkling beetles (family Tenebrionidae) established by Dejean in 1834. The genus contains at least two described species: Bius estriatus and Bius thoracicus. Members of this genus are classified within the tribe Tenebrionini, subfamily Tenebrioninae. As with many tenebrionid genera, detailed biological information remains limited in the primary literature.

  Tenebrionidaedarkling-beetlesColeopteraTenebrioniniDejean-1834

• Blapstinus alutaceus

  Blapstinus alutaceus is a species of darkling beetle in the family Tenebrionidae, described by Blatchley in 1910. It belongs to a genus of small to medium-sized beetles commonly found in arid and semi-arid regions of North America. The species is part of the tribe Blapstinini, which contains numerous taxonomically challenging species that are often distinguished by subtle morphological characters.

  ColeopteraTenebrionidaeBlapstininiNorth-AmericaArizonadesert-faunadarkling-beetledetritivore

• Blapstinus castaneus

  Blapstinus castaneus is a species of darkling beetle in the family Tenebrionidae, described by Thomas Lincoln Casey Jr. in 1890. The genus Blapstinus comprises small to medium-sized tenebrionid beetles found primarily in arid and semi-arid regions of North America. As a member of this genus, B. castaneus is likely adapted to dry environments. The species is represented by limited specimen records in museum collections and few observations in citizen science databases.

  darkling-beetleTenebrionidaeNorth-AmericaCasey-1890arid-adaptedpoorly-known-species

• Blapstinus discolor

  Blapstinus discolor is a species of darkling beetle in the family Tenebrionidae, described by Horn in 1870. It belongs to a genus of small to medium-sized beetles commonly found in arid and semi-arid regions of North America. The species name 'discolor' suggests color variation within the species or between sexes, a trait not uncommon in the genus.

  Tenebrionidaedarkling-beetleNorth-AmericaColeoptera

• Blapstinus fuscus

  Blapstinus fuscus is a species of darkling beetle in the family Tenebrionidae. It belongs to the tribe Blapstinini, a group of small to medium-sized tenebrionids primarily distributed in the Americas. The species was described by Thomas L. Casey in 1890. Available records indicate a distribution in Mexico, though specific ecological details remain poorly documented in published literature.

  darkling-beetleTenebrionidaeColeopteraMexicoBlapstinusCasey-1890

• Blapstinus histricus

  Blapstinus histricus is a species of darkling beetle in the family Tenebrionidae. It was described by Casey in 1890. The species is known from Hawaii and the continental United States. Limited information is available regarding its biology and ecology.

  darkling-beetleTenebrionidaeColeoptera

• Blapstinus moestus

  Blapstinus moestus is a species of darkling beetle in the family Tenebrionidae, first described by Melsheimer in 1846. It belongs to a genus of small to medium-sized beetles commonly found in North American habitats. The species is documented from Ontario, Canada, though detailed biological information remains limited in published sources.

  darkling-beetleTenebrionidaeNorth-AmericaOntarioMelsheimer-1846

• Blapstinus pratensis

  Blapstinus pratensis is a species of darkling beetle in the family Tenebrionidae, first described by LeConte in 1859. The species is recorded from western North America, with distribution records from Alberta, Canada and Mexico. Like other members of the genus Blapstinus, it is a ground-dwelling beetle typically found in grassland and prairie habitats. The specific epithet "pratensis" refers to meadows or grasslands, suggesting an association with prairie ecosystems.

  Tenebrionidaedarkling-beetleprairiegrasslandwestern-North-AmericaLeConte-1859

• Blapstinus substriatus

  Blapstinus substriatus is a species of darkling beetle (family Tenebrionidae) described by Champion in 1885. It belongs to a genus of small to medium-sized beetles found primarily in North America. The species is documented from western Canada with limited observational records.

  darkling-beetleTenebrionidaewestern-CanadaChampion-1885

• Blapstinus vestitus

  Blapstinus vestitus is a species of darkling beetle (family Tenebrionidae) described by LeConte in 1859. The genus Blapstinus comprises small to medium-sized beetles primarily distributed in North America. As with many tenebrionid beetles, species in this genus are generally associated with arid and semi-arid environments. The specific epithet "vestitus" (Latin for "clothed") likely refers to the pubescent or setose body covering characteristic of this species. Records from museum collections indicate this is a recognized but relatively obscure species within the genus.

  darkling-beetleTenebrionidaeNorth-AmericaLeConte-1859

• Blaptinae

  darkling beetles

  Blaptinae is a large subfamily of darkling beetles (Tenebrionidae) containing approximately 283 genera and 4,000 species, classified into 8 tribes. The subfamily was resurrected and redefined in 2021 based on morphological and molecular evidence, with seven tribes transferred from Tenebrioninae. Members are among the most widespread and abundant darkling beetles in arid regions globally, often dominating local invertebrate faunas in desert ecosystems. Ovoviviparity has been documented in at least one tribe (Platynotini), where females carry fully developed first-instar larvae.

  Tenebrionidaedarkling-beetlesdesert-beetlesflightlessovoviviparityarid-adaptationTibetan-Plateausystematics-2021

• Bothrotes

  Bothrotes is a genus of darkling beetles (family Tenebrionidae) established by Casey in 1907. The genus contains at least two described species: Bothrotes canaliculatus and Bothrotes plumbeus. Members of this genus occur in North America, with observations documented from grassland and woodland habitats in the southwestern United States and Great Plains region.

  Tenebrionidaedarkling-beetleNearcticflower-visitor

• Bothrotes canaliculatus

  Bothrotes canaliculatus is a darkling beetle species in the family Tenebrionidae, originally described by Thomas Say in 1824 as Epitragus canaliculatus. The species has been observed in the southwestern United States and Mexico. Field observations indicate adults are attracted to flowers of Gutierrezia sarothrae (broom snakeweed) in northeastern New Mexico, where they occur alongside other flower-visiting beetles.

  Tenebrionidaedarkling-beetleflower-visitingsouthwestern-North-AmericaGutierrezia

• Bothrotes plumbeus

  Bothrotes plumbeus is a species of darkling beetle in the family Tenebrionidae. Records indicate it has been collected in the southwestern United States, with observations from locations in New Mexico and surrounding regions. The species is associated with arid and semi-arid habitats, including grasslands and open woodlands. Like other tenebrionids, it is likely nocturnal and ground-dwelling, though specific behavioral details remain limited.

  Tenebrionidaedarkling-beetlesouthwestern-USnocturnalground-dwellingarid-habitatlate-season-activity

• Branchus whiteheadi

  Branchus whiteheadi is a species of darkling beetle in the family Tenebrionidae, described by Steiner in 1991. It belongs to the genus Branchus, which is part of the speciose family Tenebrionidae within the order Coleoptera. The species is known from extremely limited occurrence records, with only two observations documented on iNaturalist as of the available data.

  ColeopteraTenebrionidaedarkling-beetleBranchusSteiner-1991rarely-recordedlimited-data

• Capnochroa

  comb-clawed beetles

  Capnochroa is a genus of comb-clawed beetles established by LeConte in 1862. The genus contains at least two described species: C. fuliginosa and C. senilis. These beetles belong to the family Tenebrionidae, a large and diverse group of darkling beetles. The genus has been documented in the northeastern United States, with records from Vermont.

  Tenebrionidaedarkling-beetlescomb-clawed-beetlesNorth-AmericaLeConte-1862

• Centronopus calcaratus

  Spurred Darkling Beetle

  Centronopus calcaratus is a species of darkling beetle in the family Tenebrionidae. It is found in North America, with confirmed records from Canada including Nova Scotia, Ontario, and Quebec. The species is commonly known as the Spurred Darkling Beetle.

  darkling-beetleTenebrionidaeNorth-AmericaCanada

• Centronopus opacus

  Centronopus opacus is a species of darkling beetle in the family Tenebrionidae, first described by John Lawrence LeConte in 1859. It is endemic to North America, with records spanning the United States and potentially southern Canada. Like other tenebrionids, it is a ground-dwelling beetle adapted to arid and semi-arid environments. The genus Centronopus is small and poorly studied, with limited published information on the biology and ecology of its constituent species.

  darkling-beetleTenebrionidaeNorth-Americaground-beetlearid-habitat

• Cheirodes

  Cheirodes is a genus of darkling beetles (Tenebrionidae) in the tribe Melanimonini. The genus was established by Géné in 1839 and was revived in 1973 when T. J. Spilman synonymized the later name Anemia (Laporte, 1840) with Cheirodes. It contains numerous species distributed across Africa, Europe, Asia, and North America, organized into six recognized subgenera. Many species were originally described under Anemia and later transferred to Cheirodes.

  darkling-beetleTenebrionidaeMelanimoninidesert-beetlesynonymyAnemia

• Cheirodes californicus

  Cheirodes californicus is a species of darkling beetle in the family Tenebrionidae, first described by George Henry Horn in 1870. The species epithet indicates its association with California. Like other members of Tenebrionidae, it is a ground-dwelling beetle adapted to arid and semi-arid environments. The genus Cheirodes is part of the diverse darkling beetle fauna of western North America.

  darkling-beetleCalifornia-endemicTenebrionidaeColeopteraground-beetle

• Chilometopon microps

  Chilometopon microps is a species of darkling beetle (family Tenebrionidae) described in 1990. As a member of this large beetle family, it is adapted to arid or semi-arid environments typical of many tenebrionids. The genus Chilometopon is relatively obscure, with limited published biological information.

  ColeopteraTenebrionidaedarkling-beetlebeetleinsectarthropodobscure-specieslittle-known-biologyChilometoponChilometopon-micropsMacLachlan-&-Olson-1990rarely-collectedundocumented-ecologyundocumented-morphologyundocumented-behaviorundocumented-life-historyundocumented-distributionundocumented-habitatdata-deficientGBIF-acceptediNaturalist-documented

• Cibdelis

  Cibdelis is a genus of darkling beetles in the subfamily Stenochiinae, distributed in the Nearctic region. The genus includes at least one well-documented species, Cibdelis blaschkei, which inhabits forested regions of California. Larvae and pupae develop in soft, rotten, dry wood of dead branches on living trees or recently fallen sections. Both life stages possess antipredator defense structures, including urogomphi (pinching organs) on the terminal abdominal segments.

  ColeopteraTenebrionidaeStenochiinaedarkling-beetlessaproxylicforest-insectsCalifornia-faunaNearcticwood-inhabiting-beetlesurogomphiantipredator-defense

• Clamoris americana

  Clamoris americana is a species of darkling beetle in the family Tenebrionidae. Originally described by Horn in 1874 as Phthora americana, this species is currently accepted under the genus Clamoris. Records indicate occurrence in British Columbia, Canada. As with many Tenebrionidae, specific natural history details for this species remain poorly documented in accessible literature.

  darkling-beetleTenebrionidaeColeopteraBritish-ColumbiaNorth-AmericaHorn-1874Phthora-americanaClamoris

• Cnemeplatiini

  Cnemeplatiini is a tribe of darkling beetles within the subfamily Pimeliinae. The tribe comprises approximately nine genera distributed across multiple biogeographic regions including the Palearctic, Indomalaya, tropical Africa, Australasia, and the Americas. Members are classified in the family Tenebrionidae, a large and diverse group of beetles commonly known as darkling beetles.

  darkling-beetlesPimeliinaeTenebrionidaetribe

• Cnemodinus testaceus

  Cnemodinus testaceus is a species of darkling beetle in the family Tenebrionidae. Described by Horn in 1870, this species is among the lesser-documented members of the genus Cnemodinus. The genus belongs to a diverse family of beetles primarily associated with arid and semi-arid environments. Available occurrence data for this species is extremely limited.

  Tenebrionidaedarkling-beetleColeopteratestaceousNorth-America

• Coelocnemis

  darkling beetles, broad-necked darkling beetles

  Coelocnemis is a genus of darkling beetles in the family Tenebrionidae, containing approximately seven described species distributed across western North America. These large, flightless beetles are primarily associated with coniferous forest habitats, particularly pine and oak-conifer woodlands, where they are active nocturnally. The genus is distinguished from superficially similar darkling beetles by distinctive morphological features, including parallel lines of yellow pubescence on the inner tibial surfaces.

  darkling-beetleTenebrionidaewestern-North-Americaconifer-forestnocturnalflightlessdefensive-headstanddecomposer

• Coelocnemis punctata

  Coelocnemis punctata is a darkling beetle in the family Tenebrionidae, one of seven species in the genus Coelocnemis found in western North America and adjacent southern Canada. The genus is characterized by distinct parallel lines of yellow pubescence on the inner surface of the tibiae, a feature used to distinguish it from the superficially similar genus Eleodes. Adults are flightless, with fused elytra that reduce water loss, and are typically associated with pine forests and oak-conifer woodlands rather than desert ecosystems.

  Tenebrionidaedarkling-beetlewestern-North-Americaforest-habitatflightlessnocturnaldecomposerheadstand-defense

• Coelocnemis rugulosa

  Coelocnemis rugulosa is a species of darkling beetle in the family Tenebrionidae, described by Doyen in 1973. It belongs to a genus of seven species found in western North America and adjacent southern Canada. Like other Coelocnemis species, it is a flightless, nocturnal beetle adapted to xeric forest habitats. The genus is distinguished from the superficially similar Eleodes by having distinct parallel lines of yellow pubescence on the inner surface of the tibiae.

  darkling-beetleTenebrionidaewestern-North-Americapine-forestnocturnalflightlessdefensive-headstand

• Coelocnemis sulcata

  Coelocnemis sulcata is a nocturnal tenebrionid beetle found in coniferous woodlands of the southwestern United States. The species has been documented on the trunks of Ponderosa pine (Pinus ponderosa) and Utah juniper (Juniperus osteosperma) at night, where it has been observed in mating pairs. It occurs at moderate to high elevations in southwestern Utah, with records from approximately 6000 feet. Activity peaks in late summer, with observations in September.

  nocturnalarborealconifer-associatedsouthwestern-US-endemiclate-summer-activitytenebrionidaecoleoptera

• Coelus globosus

  Globose Dune Beetle

  Coelus globosus is a coastal sand-dwelling beetle in the family Tenebrionidae, commonly known as the Globose Dune Beetle. It occupies a narrow geographic range along the Pacific coast from northern California to Baja California, with additional populations on most of the Channel Islands. The species is restricted to active coastal dune systems, where it inhabits foredunes and sand hummocks.

  dune-specialistcoastal-endemicTenebrionidaeCaliforniaBaja-CaliforniaChannel-Islandssand-beetle

• Coelus pacificus

  Channel Islands Dune Beetle

  Coelus pacificus is a darkling beetle (family Tenebrionidae) endemic to the California Channel Islands. It inhabits dune environments across multiple islands, with distinct phylogeographic structure separating northern island populations (Santa Cruz, Santa Rosa, San Miguel, San Nicolas) from southern populations (Santa Catalina, San Clemente). The species is morphologically similar to the mainland congener Coelus ciliatus but represents a valid, independently evolving lineage. Conservation concerns arise from its restricted insular distribution and vulnerability to habitat disturbance.

  endemicdarkling-beetleCalifornia-Channel-Islandsdune-habitatphylogeographyconservationTenebrionidae

• Conibiosoma elongatum

  Conibiosoma elongatum is a species of darkling beetle (family Tenebrionidae) described by Horn in 1870. The genus Conibiosoma contains few species and is poorly documented in the literature. Records indicate limited observational data, with only seven observations documented on iNaturalist. The species epithet "elongatum" suggests an elongated body form relative to congeners.

  ColeopteraTenebrionidaedarkling-beetleNorth-Americaobscure-speciesHorn-1870

• Conibius

  Conibius is a genus of darkling beetles (family Tenebrionidae) established by John Lawrence LeConte in 1851. The genus occurs across the Nearctic, Neotropic, and Oceania biogeographic realms, with 116 iNaturalist observations indicating moderate documentation. As a member of Tenebrionidae, these beetles are characterized by hardened forewings (elytra) and generally cryptic habits. The genus lacks significant economic importance and has received limited dedicated study.

  Tenebrionidaedarkling-beetlesLeConte-1851beetlesColeoptera

• Conibius gagates

  Conibius gagates is a darkling beetle species in the family Tenebrionidae, described by Horn in 1870. It is native to Mexico and belongs to a genus of small to medium-sized beetles typically associated with arid and semi-arid environments. The specific epithet "gagates" derives from Latin, meaning "jet-black" or referring to lignite coal, suggesting a dark coloration. As with many tenebrionid beetles, it likely occupies ground-dwelling ecological niches in dry habitats.

  Tenebrionidaedarkling-beetleMexicoHorn-1870Coleopteraarid-habitat-beetle

• Conibius opacus

  Conibius opacus is a species of darkling beetle in the family Tenebrionidae, first described by John Lawrence LeConte in 1866. The species is known from Mexico and belongs to a genus of tenebrionid beetles. As with many darkling beetles, specific details about its biology and ecology remain poorly documented in the available literature.

  darkling-beetleTenebrionidaeColeopteraMexicoLeConte-1866

• Conibius rotundicollis

  Conibius rotundicollis is a species of darkling beetle in the family Tenebrionidae, described by Linell in 1899. The species name refers to its rounded pronotum. It is native to Mexico and belongs to a genus of small to medium-sized tenebrionid beetles.

  Tenebrionidaedarkling-beetleColeopteraMexicoLinell-1899Conibius

• Conibius seriatus

  Conibius seriatus is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1851. The species is recorded from Mexico, though detailed biological information remains sparse. It belongs to a genus within a family characterized by drought-adapted beetles often found in arid and semi-arid environments.

  ColeopteraTenebrionidaeMexicoLeConte-1851darkling-beetleConibiusConibius-seriatusbeetleinsectarthropodAnimaliaArthropodaInsecta

• Conibius uniformis

  A darkling beetle species described by Casey in 1890. The specific epithet 'uniformis' refers to the species' uniform coloration. It is one of several species in the genus Conibius, a group of small to medium-sized tenebrionid beetles found in arid and semi-arid regions of North America. The species is documented from Mexico based on collection records.

  Tenebrionidaedarkling-beetleMexicoCasey-1890ConibiusColeopteraPolyphaga

• Coniontis lata

  Coniontis lata is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1866. The genus Coniontis comprises elongate, somewhat flattened beetles found in western North America. Members of this genus are characterized by their parallel-sided body form and relatively smooth elytra. Like other tenebrionids, they are primarily nocturnal and associated with arid or semi-arid environments.

  darkling-beetleTenebrionidaewestern-North-AmericaLeConte-1866nocturnalarid-adapted

• Conisattus

  Conisattus is a genus of darkling beetles (family Tenebrionidae) described by Casey in 1895. The genus is poorly documented, with minimal published information on its biology and morphology. It appears to be restricted to the Nearctic region. The genus contains few known species and has received limited taxonomic study.

  darkling-beetleTenebrionidaeColeopteraNearcticCasey-1895poorly-known-genusrarely-collected

• Conoecus

  Conoecus is a genus of darkling beetles (family Tenebrionidae) described by Horn in 1885. The genus is native to the Nearctic region, though it is rarely encountered with very few documented observations. As a tenebrionid genus, its members are likely adapted to arid or semi-arid environments, though specific ecological details remain poorly documented.

  darkling-beetleTenebrionidaeNearcticrarely-observedHorn-1885

• Conoecus ovipennis

  Conoecus ovipennis is a species of darkling beetle in the family Tenebrionidae. The genus Conoecus is part of a diverse family of beetles commonly known as darkling beetles or flour beetles, though many species are associated with decaying wood and forest habitats. Very little specific biological information has been published for this particular species.

  ColeopteraTenebrionidaeConoecusdarkling-beetle

• Corticeus opaculus

  Corticeus opaculus is a species of darkling beetle (family Tenebrionidae) described by LeConte in 1878. The species is known from Mexico. Members of the genus Corticeus are typically small to medium-sized beetles associated with bark and decaying wood habitats.

  Tenebrionidaedarkling-beetleCorticeusMexicoLeConte-1878

• Corticeus tenuis

  Corticeus tenuis is a species of darkling beetle in the family Tenebrionidae, described by LeConte in 1878. It is a small, slender beetle distributed across southern Canada from Alberta to Nova Scotia. Like other members of the genus Corticeus, it is associated with bark habitats. Specific biological details regarding its ecology and behavior remain poorly documented in published literature.

  Tenebrionidaedarkling-beetlebark-beetleCanadian-faunaLeConte-1878Coleoptera

• Cryptadius inflatus

  Cryptadius inflatus is a species of darkling beetle (Tenebrionidae) in the genus Cryptadius. The species is known from Mexico based on distribution records. As a member of Tenebrionidae, it belongs to a large family of beetles commonly associated with arid and semi-arid environments, though specific ecological details for this species remain undocumented.

  darkling-beetleTenebrionidaeMexicobeetle

• Crypticini

  Crypticini is a tribe of darkling beetles within the subfamily Diaperinae, family Tenebrionidae. The tribe was established by Brullé in 1832 and contains multiple genera distributed across various regions. Members are small to medium-sized beetles often associated with decaying organic matter and moist microhabitats. The tribe is taxonomically stable and widely recorded in beetle fauna surveys.

  Tenebrionidaedarkling-beetlesDiaperinaedecomposersleaf-litter-fauna

• Cryptoglossa infausta

  Cryptoglossa infausta is a darkling beetle in the family Tenebrionidae, first described by John Lawrence LeConte in 1854. The genus Cryptoglossa is a small, distinctive group within the tribe Cryptoglossini, characterized by modified mouthpart structures. This species occurs in Mexico and is part of a genus associated with arid and semi-arid environments. Observations suggest it is active in warmer months, though detailed ecological studies are limited.

  darkling-beetledesert-beetleMexicoTenebrionidaeCryptoglossini

• Cybotus

  Cybotus is a genus of darkling beetles in the family Tenebrionidae, established by Casey in 1890. It is a small genus with limited documented species, occurring in the Neotropical region. The genus belongs to the speciose family Tenebrionidae, which contains over 20,000 species of primarily detritivorous beetles. Information on Cybotus remains sparse in published literature.

  NeotropicalTenebrionidaedarkling-beetleCasey-1890

• Cybotus estriatus

  Cybotus estriatus is a species of darkling beetle in the family Tenebrionidae, first described by LeConte in 1878. The genus Cybotus is small and poorly documented, with limited published information on its biology. The species is known from Mexico based on collection records. Few observations exist, suggesting it may be uncommon, cryptic, or restricted to specific habitats.

  Tenebrionidaedarkling-beetleMexicoLeConte-1878data-deficient

• Cynaeus depressus

  Cynaeus depressus is a species of darkling beetle in the family Tenebrionidae, first described by Horn in 1870. The species is characterized by its dorsoventrally flattened body form, an adaptation that distinguishes it within the genus. Distribution records indicate presence in Mexico, Norway, and Sweden, though the species appears to be rare or poorly collected based on limited observation data. The specific epithet "depressus" refers to this flattened body morphology.

  Tenebrionidaedarkling-beetleflattened-bodyHolarcticrare-species

• Diaperinae

  Diaperinae is a subfamily of darkling beetles (Tenebrionidae) comprising more than 120 genera organized into 11 tribes. The subfamily exhibits considerable ecological diversity, including fungivorous species that inhabit fruiting bodies of bracket fungi, myrmecophilous species that live commensally within ant nests, and free-living forms. Some species display specialized adaptations such as reduced eyes for subterranean life, compact rounded body shapes for physical defense against ants, and cuticular hydrocarbon mimicry of host ant recognition signals.

  darkling-beetlesTenebrionidaefungivorymyrmecophilycommensalismMediterranean-faunasubterraneanant-nests

• Diaperis californica

  Diaperis californica is a species of darkling beetle in the family Tenebrionidae, described by Blaisdell in 1929. It belongs to the genus Diaperis, a small group of beetles characterized by their distinctive body shape and coloration patterns. The species is known from California, as indicated by its specific epithet. Like other members of its family, it is likely associated with decaying organic matter and fungal resources, though specific biological details remain poorly documented.

  Tenebrionidaedarkling-beetleCalifornia-endemicColeopteraDiaperinaefungivoredecomposer

• Diaperis rufipes

  Diaperis rufipes is a species of darkling beetle in the family Tenebrionidae, described by Horn in 1870. It is native to Mexico and belongs to a genus characterized by distinctive body forms. The species epithet 'rufipes' refers to reddish legs, a trait that distinguishes it from congeners. Like other members of Tenebrionidae, it is likely associated with decaying wood or fungal habitats, though specific ecological details remain poorly documented.

  Tenebrionidaedarkling-beetleMexicoColeopterared-legged

• Dioedus punctatus

  Dioedus punctatus is a species of darkling beetle in the family Tenebrionidae, described by LeConte in 1862. It belongs to a genus of small to medium-sized beetles found primarily in North America. Like other members of Tenebrionidae, it is likely associated with decaying plant matter and soil habitats. The specific epithet 'punctatus' refers to punctation or spotting, suggesting distinctive surface markings on the elytra or pronotum.

  ColeopteraTenebrionidaedarkling-beetleNorth-AmericaLeConte-1862understudied-species

• Doliodesmus

  Doliodesmus is a genus of darkling beetles (family Tenebrionidae) described by Spilman in 1967. The genus is native to the Nearctic region and is represented by a small number of species. Very little has been published on its biology or ecology. Records indicate extremely limited observational data, with only two documented observations on iNaturalist.

  darkling-beetleTenebrionidaeNearcticdata-deficientcryptic

• Edrotes arens

  A small darkling beetle (Tenebrionidae) in the genus Edrotes, described by La Rivers in 1947. The genus is associated with sandy habitats in western North America. One verified observation from Colorado in 2017 represents a notable range extension, as the genus had no previous records in that state. The species name 'arens' suggests a connection to sandy or arid environments (from Latin 'arena', sand).

  darkling-beetleTenebrionidaepsammophilicsand-duneColorado-raritywestern-North-America

• Edrotes rotundus

  Edrotes rotundus is a species of darkling beetle in the family Tenebrionidae. It is native to North America and has been documented in the southwestern United States and Mexico. The genus Edrotes is characterized by small, rounded body forms adapted to arid environments. Records from Colorado represent range extensions beyond the species' previously documented distribution.

  darkling-beetleTenebrionidaedesert-beetlesand-dwellingNorth-America

• Eleates depressus

  Conk-loving Darkling Beetle

  Eleates depressus is a small darkling beetle in the family Tenebrionidae, commonly known as the Conk-loving Darkling Beetle. The species has been recorded from multiple Canadian provinces including British Columbia, Manitoba, New Brunswick, Northwest Territories, and Ontario. It is associated with conks (bracket fungi) on trees, where adults are found. The species was originally described by Randall in 1838.

  Tenebrionidaedarkling-beetlefungi-associatedCanada

• Eleates occidentalis

  Eleates occidentalis is a species of darkling beetle in the family Tenebrionidae, described by Casey in 1886. The genus Eleates belongs to a diverse family of beetles commonly found in arid and semi-arid environments. As a member of Tenebrionidae, this species likely exhibits adaptations to dry conditions typical of the group.

  Tenebrionidaedarkling-beetleColeopteraEleatesCasey-1886

• Eleodes

  pinacate beetles, desert stink beetles

  Eleodes is the largest genus of darkling beetles in North America, comprising approximately 200 species. These beetles are endemic to western North America, ranging from southern Canada to central Mexico, with some species introduced to Colombia. Commonly known as pinacate beetles or desert stink beetles, they are flightless due to fused elytra and vestigial hindwings. All species possess chemical defense glands that produce quinone compounds, and many exhibit distinctive head-standing behavior when threatened. The genus shows remarkable ecological diversity, with species occupying deserts, forests, grasslands, and caves.

  darkling-beetleTenebrionidaechemical-defenseflightlessdesert-arthropoddetritivoreagricultural-pestMüllerian-mimicrycave-beetlewestern-North-America

• Eleodes arcuata

  Eleodes arcuata is a species of darkling beetle in the family Tenebrionidae, first described by Thomas Lincoln Casey in 1884. The species belongs to the genus Eleodes, a diverse group of beetles commonly known as clown beetles or desert stink beetles. Records indicate this species occurs in Mexico. Like other members of Eleodes, it is likely adapted to arid or semi-arid environments, though specific ecological details remain poorly documented.

  ColeopteraTenebrionidaeEleodesdarkling-beetleMexico1884Casey

• Eleodes blanchardii

  clown beetle

  Eleodes blanchardii is a species of darkling beetle in the family Tenebrionidae, commonly referred to as a 'clown beetle' due to the defensive head-stand posture characteristic of the genus. It belongs to a large and diverse genus of ground-dwelling beetles found primarily in arid and semi-arid regions of North America. The species was described by Blaisdell in 1909.

  darkling-beetleclown-beetleTenebrionidaeEleodesNorth-America

• Eleodes caudifera

  desert stink beetle

  Eleodes caudifera is a species of darkling beetle in the family Tenebrionidae, commonly referred to as a desert stink beetle. The species is native to arid regions of western North America and exhibits the defensive head-standing behavior typical of the genus Eleodes. It has been documented in sandy desert habitats, particularly in association with dune systems. The species was described by LeConte in 1858.

  Tenebrionidaedarkling-beetledesert-beetlechemical-defensesand-dune-faunaEleodesdetritivoreNorth-American-desert-fauna

• Eleodes delicata

  clown beetle

  Eleodes delicata is a species of clown beetle (family Tenebrionidae) described by Blaisdell in 1929. It belongs to a large genus of darkling beetles known for defensive head-stand behavior. The species is recorded from Mexico, though detailed biological information appears limited in published literature. Like other Eleodes species, it is presumed to be nocturnal and ground-dwelling.

  Tenebrionidaedarkling-beetleclown-beetleMexiconocturnalground-dwelling

• Eleodes dissimilis

  desert stink beetle

  Eleodes dissimilis is a species of desert stink beetle in the family Tenebrionidae. It was described by Blaisdell in 1909. The species belongs to the genus Eleodes, a diverse group of darkling beetles commonly known as stink beetles due to their defensive chemical secretions. Distribution records indicate presence in Mexico.

  desert-beetledarkling-beetledefensive-secretionTenebrionidaeEleodesMexico

• Eleodes fuchsii

  Eleodes fuchsii is a darkling beetle in the family Tenebrionidae, first described by Blaisdell in 1909. As a member of the genus Eleodes, it belongs to a group commonly known as "clown beetles" or "stink beetles," recognized for their defensive posture of raising the abdomen when disturbed. The species is part of a large North American genus with over 200 described species, many of which inhabit arid and semi-arid regions.

  darkling-beetleTenebrionidaeEleodesdesert-beetledefensive-behaviorNorth-Americadetritivoredata-deficient

• Eleodes fusiformis

  desert stink beetle, clown beetle

  Eleodes fusiformis is a species of desert stink beetle in the family Tenebrionidae, described by LeConte in 1858. As a member of the genus Eleodes, it shares the characteristic defensive head-standing behavior common to clown beetles. The species is found in arid regions of western North America. Like other Eleodes species, it possesses chemical defense glands that produce noxious secretions when disturbed.

  TenebrionidaeEleodesdesert-beetlestink-beetleclown-beetleNorth-AmericaLeConte-1858

• Eleodes grandicollis

  desert stink beetle

  Eleodes grandicollis is a species of darkling beetle in the family Tenebrionidae. The species was described by Mannerheim in 1843. Two subspecies are recognized: E. g. grandicollis and E. g. valida. The species is part of the diverse Eleodes genus, commonly known as desert stink beetles or clown beetles, which are characteristic of arid environments in North America.

  darkling-beetledesert-stink-beetlearid-adaptedNorth-American-faunaTenebrionidae

• Eleodes halli

  Eleodes halli is a species of darkling beetle (Tenebrionidae) in the genus Eleodes, commonly known as clown beetles. The genus is characterized by defensive head-standing behavior when disturbed. Species within this genus are often large, conspicuous beetles of arid and semi-arid regions, with several exhibiting Batesian mimicry of tiger beetles. Eleodes halli was described by Blaisdell in 1941.

  Tenebrionidaedarkling-beetleclown-beetledefensive-behaviorhead-standing

• Eleodes hirsuta

  Hairy Stink Beetle, Hairy Eleodes

  Eleodes hirsuta is a large darkling beetle (Tenebrionidae) native to western North America, recognized by its conspicuously hairy body and defensive chemical-secreting behavior. The species belongs to the 'clown beetle' group, known for their characteristic head-stand posture when threatened. Adults are primarily nocturnal and active during warmer months in arid and semi-arid grassland habitats.

  darkling-beetleclown-beetledefensive-behaviorhead-standGreat-Plainsnocturnalburrowinghairychemical-defenseTenebrionidaeEleodeswestern-North-Americagrasslandprairiedetritivorepet-insect

• Eleodes humeralis

  Eleodes humeralis is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1857. It belongs to the large genus Eleodes, commonly known as clown beetles or desert stink beetles, which are characterized by their defensive posture of standing on their head and raising their abdomen when disturbed. The species name refers to the humeral (shoulder) region of the elytra. Records indicate it occurs in western North America, including British Columbia, Canada.

  darkling-beetleclown-beetleTenebrionidaewestern-North-AmericaBritish-ColumbiaLeConte-1857

• Eleodes inculta

  Island Darkling Beetle

  A darkling beetle in the family Tenebrionidae, known from limited observations primarily on islands. The species belongs to the diverse genus Eleodes, commonly referred to as clown beetles or stink beetles due to their defensive behaviors. Available records indicate a restricted distribution with relatively few documented observations.

  darkling-beetleisland-endemicEleodesTenebrionidaeColeoptera

• Eleodes knullorum

  Eleodes knullorum is a darkling beetle species in the family Tenebrionidae, described by Triplehorn in 1971. It belongs to the diverse genus Eleodes, commonly known as clown beetles or desert stink beetles. Records indicate this species occurs in Mexico. As with many Eleodes species, it likely exhibits the defensive head-stand behavior characteristic of the genus when disturbed.

  darkling-beetleclown-beetledesert-stink-beetleTenebrionidaeEleodesMexicoColeopterainsectbeetle

• Eleodes longipilosa

  Eleodes longipilosa is a species of darkling beetle in the family Tenebrionidae, described by Horn in 1891. The species belongs to the large genus Eleodes, commonly known as clown beetles or stink beetles, which are characterized by their defensive head-stand posture when threatened. Specific ecological and behavioral details for E. longipilosa remain poorly documented in published literature. The species name 'longipilosa' suggests long pilosity (hairiness), though this characteristic has not been explicitly described in available sources.

  ColeopteraTenebrionidaeEleodesdarkling-beetleclown-beetleHorn-1891

• Eleodes nigrina

  desert stink beetle

  Eleodes nigrina is a species of darkling beetle in the family Tenebrionidae, commonly referred to as a desert stink beetle. It belongs to the genus Eleodes, a group known for defensive head-stand posturing when disturbed. The species was described by LeConte in 1858. Available information on this species is limited, with few detailed ecological or behavioral studies published.

  Tenebrionidaedarkling-beetledesert-stink-beetleLeConte-1858taxonomic-uncertaintyBritish-ColumbiaEleodes

• Eleodes nunenmacheri

  Eleodes nunenmacheri is a species of darkling beetle in the family Tenebrionidae. It belongs to the genus Eleodes, commonly known as clown beetles or stink beetles, which are characterized by their defensive head-stand posture. The species was described by Blaisdell in 1918. Very little specific information is available for this particular species compared to more frequently encountered Eleodes species.

  Tenebrionidaedarkling-beetleclown-beetleEleodes

• Eleodes obscura glabriuscula

  Eleodes obscura glabriuscula is a subspecies of the widespread darkling beetle Eleodes obscura, distinguished by its relatively smoother (less setose) elytral surface compared to the nominate subspecies. As a member of the Eleodes subgenus Eleodes, it exhibits the characteristic defensive head-stand posture typical of clown beetles when threatened. The subspecies occurs in western North America and shares the general habitat preferences of E. obscura, favoring arid and semi-arid environments.

  Tenebrionidaedarkling-beetleclown-beetleEleodessubspeciesNorth-Americaarid-adapteddefensive-behavior

• Eleodes parowana

  Eleodes parowana is a species of darkling beetle (Tenebrionidae) described by Blaisdell in 1925. The genus Eleodes, commonly known as clown beetles or stink beetles, is characterized by defensive head-standing behavior when disturbed. Species within this genus are primarily nocturnal and inhabit arid and semi-arid regions of North America. E. parowana is one of numerous Eleodes species found in western North American deserts and grasslands.

  Tenebrionidaedarkling-beetleclown-beetledefensive-behaviorNorth-Americaarid-habitat

• Eleodes parvicollis

  Eleodes parvicollis is a species of desert stink beetle in the family Tenebrionidae, first described by Eschscholtz in 1829. It belongs to the genus Eleodes, commonly known as clown beetles, which are recognized for their distinctive defensive head-stand behavior. The species is one of numerous Eleodes species found in arid and semi-arid regions of North America. Specific ecological and behavioral details for E. parvicollis remain poorly documented in the available literature.

  desert-stink-beetleclown-beetleTenebrionidaeNorth-America

• Eleodes patulicollis

  Eleodes patulicollis is a species of darkling beetle in the family Tenebrionidae, described by Blaisdell in 1932. It belongs to the large genus Eleodes, commonly known as clown beetles or stink beetles, which are characterized by their defensive head-stand posture when disturbed. The species is part of a taxonomically challenging group within Eleodes where morphological similarity among species requires careful examination of pronotal and elytral characters for accurate identification. Available occurrence records are sparse, with limited observational data documented in biodiversity databases.

  TenebrionidaeEleodesdarkling-beetleclown-beetleBlaisdell-1932

• Eleodes pedinoides

  clown beetle

  Eleodes pedinoides is a darkling beetle (family Tenebrionidae) native to Mexico. Like other members of the genus Eleodes, it exhibits the defensive 'headstand' behavior characteristic of clown beetles, raising its abdomen when disturbed to release defensive secretions. The species is closely related to E. suturalis and E. hispilabris, with which it shares general body form and dark coloration. Available information on this species is limited compared to its better-known North American congeners.

  Tenebrionidaedarkling-beetleclown-beetledefensive-behaviorMexico

• Eleodes pimelioides

  desert stink beetle, stout darkling beetle

  Eleodes pimelioides is a small species of darkling beetle in the family Tenebrionidae. It has been observed in alpine coniferous forest habitats, where it is active at night. The species is part of the diverse Eleodes genus, commonly known as desert stink beetles or clown beetles, though this particular species appears to favor cooler, higher-elevation environments rather than true desert conditions.

  nocturnalmontaneconifer-forestpine-duffaggregation-behaviorTenebrionidaedarkling-beetleEleodeswestern-North-Americaearly-fall-activity

• Eleodes rileyi

  Riley's clown beetle

  Eleodes rileyi is a species of clown beetle in the family Tenebrionidae. It belongs to the large genus Eleodes, which contains numerous species of darkling beetles commonly known as clown beetles or stink beetles due to their defensive head-standing behavior. The species was described by Casey in 1891. Like other members of the genus, it is presumed to exhibit the characteristic defensive posture of raising its abdomen and standing on its head when disturbed, though specific behavioral documentation for this species is limited in the provided sources.

  Tenebrionidaedarkling-beetleclown-beetleEleodesColeoptera

• Eleodes rileyi reducta

  Eleodes rileyi reducta is a subspecies of darkling beetle in the family Tenebrionidae. Like other members of the genus Eleodes, it exhibits the defensive "head stand" behavior characteristic of clown beetles. The species E. rileyi and its subspecies are part of the diverse Eleodes fauna of western North America, though specific information distinguishing E. rileyi reducta from the nominate subspecies is limited in available sources.

  Tenebrionidaedarkling-beetleclown-beetledefensive-behaviorhead-standNorth-AmericasubspeciesEleodes-rileyi

• Eleodes scabrosa

  desert beetle

  Eleodes scabrosa is a darkling beetle (family Tenebrionidae) native to western North America, ranging from Washington state to Mexico. The species exhibits notable habitat flexibility, occurring on temperate beaches in the northern part of its range and in desert environments farther south, with coastal preferences persisting throughout. Its black coloration and textured abdomen are characteristic of the genus Eleodes.

  Tenebrionidaedarkling-beetledesert-beetlewestern-North-AmericacoastalEleodes

• Eleodes spiculifera

  Eleodes spiculifera is a species of clown beetle (family Tenebrionidae) described by Triplehorn in 2007. It belongs to a genus renowned for defensive head-standing behavior when disturbed. The species is part of the diverse Eleodes fauna of western North America, a region where these beetles are conspicuous components of arid and semi-arid ecosystems.

  Tenebrionidaedarkling-beetleclown-beetledefensive-behaviorhead-standNorth-Americaarid-adapted

• Eleodes tribulus

  Eleodes tribulus is a species of darkling beetle in the family Tenebrionidae, described by Thomas in 2005. The species belongs to the large genus Eleodes, commonly known as clown beetles, which are recognized for their defensive head-stand behavior. Distribution records indicate presence in Mexico. As a relatively recently described species, detailed biological information remains limited.

  darkling-beetleclown-beetleTenebrionidaerecently-described-species

• Eleodes versatilis

  Eleodes versatilis is a species of darkling beetle in the family Tenebrionidae, first described by Blaisdell in 1921. The genus Eleodes, commonly known as clown beetles or stink beetles, is characterized by defensive head-standing behavior when disturbed. Specific information about E. versatilis is limited; the species has been recorded in taxonomic databases but detailed natural history documentation is sparse. Members of the genus are primarily nocturnal and inhabit arid and semi-arid environments across North America.

  Tenebrionidaedarkling-beetleclown-beetleEleodesColeopteradefensive-behavior

• Eleodes veterator

  Texas Coastal Teneb

  Eleodes veterator is a species of darkling beetle in the family Tenebrionidae, commonly known as the Texas Coastal Teneb. As a member of the Eleodes genus, it shares the defensive "head stand" behavior characteristic of clown beetles, where the beetle elevates its abdomen to release defensive secretions. The species was described by Horn in 1874. Information specific to this species is limited compared to better-known congeners such as E. suturalis and E. hispilabris.

  darkling-beetleclown-beetledefensive-behaviorhead-standTenebrionidaeEleodesTexas-endemic

• Eleodes wenzeli

  Eleodes wenzeli is a species of darkling beetle (Tenebrionidae) described by Blaisdell in 1925. It belongs to the large genus Eleodes, commonly known as clown beetles or stink beetles due to their defensive head-standing behavior. The species is part of a taxonomically challenging complex within Eleodes that includes similar-looking species such as E. suturalis and E. hispilabris. Available occurrence records suggest limited documented observations, with 12 records in iNaturalist as of the data cutoff.

  TenebrionidaeEleodesdarkling-beetleclown-beetleColeopteraNorth-America

• Eleodes wynnei

  Wynne's clown beetle

  Eleodes wynnei is a species of clown beetle (family Tenebrionidae) described in 2012. It belongs to the large genus Eleodes, which contains numerous species in North America commonly known as clown beetles or stink beetles due to their defensive head-stand posture. The species is named in honor of someone with the surname Wynne. As a recently described species, detailed natural history information remains limited in the published literature.

  clown-beetledarkling-beetleTenebrionidaeEleodesNorth-Americarecently-described-species

• Embaphion contractum

  Embaphion contractum is a darkling beetle (family Tenebrionidae) in the genus Embaphion, a group characterized by their distinctly explanate (flattened and expanded) body form. The species is found in arid and semi-arid regions of western North America. Like other tenebrionids, it is primarily nocturnal and exhibits slow, deliberate movement rather than rapid flight.

  darkling-beetleTenebrionidaeexplanatenocturnalwestern-North-Americasand-dunesNew-Mexico

• Embaphion contusum

  Embaphion contusum is a species of darkling beetle in the family Tenebrionidae. The species was described by LeConte in 1858 and contains three recognized subspecies: E. c. contusum (the nominate subspecies), E. c. laminatum (Casey, 1890), and E. c. grande (Blaisdell, 1909). Like other members of the genus Embaphion, this species exhibits the explanate (flattened and expanded) body form characteristic of the group. The genus Embaphion is part of the diverse darkling beetle fauna of western North America.

  darkling-beetleTenebrionidaeexplanatewestern-North-AmericaLeConte-1858subspecies-present

• Embaphion elongatum

  Embaphion elongatum is a species of darkling beetle in the family Tenebrionidae, first described by Horn in 1870. The genus Embaphion is characterized by beetles with explanate (flattened and expanded) body margins, giving them a distinctive, almost disc-like appearance. This species is part of a group of darkling beetles adapted to arid and semi-arid environments of western North America. Members of this genus are nocturnal and have been observed in sand dune habitats.

  darkling-beetleTenebrionidaeexplanatesand-dunenocturnalwestern-North-America

• Embaphion planum

  Embaphion planum is a darkling beetle species in the family Tenebrionidae, first described by Horn in 1870. The genus Embaphion is characterized by distinctly explanate (flanged or flattened) elytra that give these beetles a broad, flattened appearance. Species in this genus are primarily nocturnal and associated with arid and semi-arid habitats. E. planum is one of several Embaphion species found in North American desert and grassland ecosystems.

  darkling-beetlenocturnaldesertexplanate-elytraTenebrionidae

• Eschatomoxys

  Eschatomoxys is a genus of darkling beetles in the family Tenebrionidae, subfamily Pimeliinae, tribe Edrotini. The genus was established by Blaisdell in 1935 and is distributed in the Nearctic region. As a member of the Edrotini, it belongs to a tribe of arid-adapted tenebrionids often associated with desert and semi-desert environments. The genus has received taxonomic revision but published biological details remain limited.

  TenebrionidaePimeliinaeEdrotinidarkling-beetleNearcticdesert-beetle

• Eschatomoxys andrewsi

  Eschatomoxys andrewsi is a darkling beetle (family Tenebrionidae) described by Aalbu & Thomas in 2008. The genus Eschatomoxys belongs to the diverse beetle family Tenebrionidae, commonly known as darkling beetles, which are primarily detritivores and scavengers. This species is known from extremely limited occurrence records, with only a single observation documented on iNaturalist.

  darkling-beetleTenebrionidaeColeopterararely-observedlimited-datadescribed-2008

• Eschatomoxys pholeter

  Eschatomoxys pholeter is a species of darkling beetle described in 2008. It belongs to the family Tenebrionidae, a large group of beetles commonly associated with arid and semi-arid environments. The species epithet "pholeter" (Greek for "cave dweller") suggests a possible association with subterranean or cave habitats. As a recently described species with no iNaturalist observations, its biology and distribution remain poorly documented.

  darkling-beetleTenebrionidaeColeopteracave-dwelling-beetle

• Eschatoporis nunenmacheri

  Eschatoporis nunenmacheri is a species of darkling beetle in the family Tenebrionidae, described by Blaisdell in 1906. The genus Eschatoporis is endemic to western North America and comprises several species restricted to arid and semi-arid regions. This species, like other members of its genus, is poorly known and has not been recorded in citizen science databases such as iNaturalist. Tenebrionidae is a large family of beetles predominantly associated with dry habitats, where they function as detritivores and scavengers.

  Tenebrionidaedarkling-beetleBlaisdell-1906western-North-Americaarid-adaptedpoorly-known-species

• Eulabis

  Eulabis is a genus of darkling beetles (family Tenebrionidae) within the tribe Eulabini. The genus was established by Eschscholtz in 1829 and contains species found in western North America. As members of Tenebrionidae, these beetles are generally associated with arid and semi-arid environments. The genus is relatively small and understudied compared to larger tenebrionid genera.

  ColeopteraTenebrionidaedarkling-beetleNorth-Americadesert-beetleground-beetledecomposer

• Eulabis bicarinata

  Eulabis bicarinata is a species of darkling beetle in the family Tenebrionidae, described by Eschscholtz in 1829. It belongs to the genus Eulabis, a group of small to medium-sized beetles within the diverse Tenebrionidae family. The species name "bicarinata" refers to the two-keeled or two-ridged structure, likely describing a diagnostic feature of the pronotum or elytra. As with many tenebrionid beetles, it is presumed to inhabit arid or semi-arid environments, though specific ecological data remain limited.

  darkling-beetleTenebrionidaeColeopteraEschscholtz-1829Eulabis

• Eusattus

  sand darkling beetle

  Eusattus is a genus of darkling beetles in the family Tenebrionidae, established by J.L. LeConte in 1851. Species within this genus are associated with sandy habitats in western North America. The genus is represented by at least one well-documented species, Eusattus reticulatus, which has been observed in juniper-oak-pinyon woodland on sandstone escarpments.

  darkling-beetleTenebrionidaesand-dwellingwestern-North-Americanocturnal

• Eusattus convexus

  Eusattus convexus is a darkling beetle species in the family Tenebrionidae, described by John Lawrence LeConte in 1851. The species is known from Mexico and has been documented through 19 iNaturalist observations. As a member of Tenebrionidae, it likely inhabits arid or semi-arid environments typical of the genus, though specific ecological details remain poorly documented in the available literature.

  darkling-beetleTenebrionidaeMexicoLeConte-1851Coleoptera

• Eusattus difficilis

  Eusattus difficilis is a species of darkling beetle in the family Tenebrionidae, described by LeConte in 1851. The genus Eusattus belongs to a diverse group of beetles commonly known as darkling beetles, which are primarily found in arid and semi-arid environments. This species is native to Mexico, as indicated by distribution records. The specific epithet "difficilis" (Latin for "difficult") may allude to identification challenges or habitat characteristics. Darkling beetles in this genus are typically ground-dwelling and adapted to dry conditions.

  ColeopteraTenebrionidaeEusattusdarkling-beetleMexicoLeConte-1851arid-adaptedground-dwelling-beetleNorth-American-fauna

• Eusattus dubius

  Eusattus dubius is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1851. The genus Eusattus belongs to the tribe Solenini, a group of tenebrionid beetles predominantly found in arid and semi-arid regions of North America. Like other members of this tribe, E. dubius is likely adapted to dry habitats. The species has been documented through 28 observations on iNaturalist, indicating it is encountered with moderate frequency by naturalists, though detailed natural history information remains limited in publicly available sources.

  darkling-beetleTenebrionidaeSoleniniLeConte-1851North-Americaarid-adaptediNaturalist-documented

• Eusattus dubius arizonensis

  A darkling beetle subspecies described from Arizona in 1984. Part of the diverse Eusattus genus within the Tenebrionidae family, this taxon represents one of many cryptic or poorly documented beetle subspecies in the North American aridlands. The species Eusattus dubius itself was described by Casey in 1890. Very few observations exist in public databases, suggesting either genuine rarity or undercollection due to its cryptic habits.

  Tenebrionidaedarkling-beetleArizonasubspeciescrypticaridland-beetle

• Eusattus muricatus

  Eusattus muricatus is a darkling beetle in the family Tenebrionidae. The genus Eusattus comprises sand-dwelling species found in arid and semi-arid regions of western North America. Eusattus muricatus is one of several species in this genus adapted to sandy habitats, where it occurs as part of the ground-dwelling beetle fauna.

  darkling-beetlesand-beetlearid-adaptedground-dwellingwestern-North-AmericaTenebrionidaeEusattus

• Eusattus politus

  Eusattus politus is a species of darkling beetle in the family Tenebrionidae. The genus Eusattus comprises sand-dwelling darkling beetles found in arid and semi-arid regions of western North America. Members of this genus are typically associated with sandy substrates and are active during the warmer months. Based on related species in the genus, E. politus likely inhabits sandy grasslands and dune systems.

  Tenebrionidaedarkling-beetlesand-beetlewestern-North-AmericaColeoptera

• Eusattus pons

  Eusattus pons is a species of darkling beetle in the family Tenebrionidae, described by Triplehorn in 1968. The genus Eusattus comprises sand-dwelling darkling beetles found in arid and semi-arid regions of North America. As with other members of this genus, E. pons is likely associated with sandy habitats, though specific ecological details remain poorly documented. The species is recorded from Mexico.

  darkling-beetleTenebrionidaesand-beetleNorth-AmericaMexicoTriplehorn-1968

• Eusattus productus

  Eusattus productus is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1858. The genus Eusattus comprises small to medium-sized tenebrionids associated with sandy or loose soil habitats. The species is known from Mexico, with records indicating occurrence in arid or semi-arid regions. Like other members of the genus, it is likely nocturnal and ground-dwelling, though specific behavioral observations remain limited.

  darkling-beetleTenebrionidaeMexicopsammophilousnocturnalground-dwelling

• Eusattus reticulatus

  Sand Darkling Beetle

  Eusattus reticulatus is a species of darkling beetle in the family Tenebrionidae, commonly known as the sand darkling beetle. It inhabits sandy environments in southwestern North America. The species is primarily ground-dwelling and has been observed in association with juniper-oak-pinyon woodland on sandstone escarpments. Like other members of the genus, it is adapted to arid and semi-arid conditions.

  Tenebrionidaedarkling-beetlesand-dwellingarid-habitatground-beetleNew-Mexico-fauna

• Eutochia

  Eutochia is a genus of darkling beetles in the family Tenebrionidae, established by LeConte in 1862. The genus contains relatively few described species and is characterized by its placement within the diverse tenebrionid radiation. Members of this genus are small to medium-sized beetles with the general body plan typical of many Tenebrionidae. The genus appears to be sparsely collected and poorly represented in biological collections.

  ColeopteraTenebrionidaedarkling-beetlesLeConte-1862North-American-fauna

• Eutochia crenata

  A darkling beetle species in the family Tenebrionidae, described by LeConte in 1866. Very little published information exists on the biology or ecology of this species.

  TenebrionidaeColeopteradarkling-beetleLeConte-1866

• Gnatocerus guatemalensis

  Gnatocerus guatemalensis is a species of darkling beetle in the family Tenebrionidae. The genus Gnatocerus is known for species with enlarged mandibles in males, which function as weapons in male-male combat for mating opportunities. This species is native to Mexico and belongs to a genus closely related to the well-studied flour beetle Tribolium.

  ColeopteraTenebrionidaeGnatocerusMexicomandible-weaponrymale-dimorphism

• Gnatocerus maxillosus

  flour beetle

  Gnatocerus maxillosus is a species of darkling beetle in the family Tenebrionidae. It is a stored product pest commonly associated with grain and flour storage facilities. The species is known for its distinctive enlarged mandibles in males, which function as weapons in male-male combat. It has been documented from several European countries including France, Italy, and Albania, as well as the Canary Islands.

  stored-product-pestsexual-dimorphismmale-combatflour-beetleTenebrionidaeeconomic-pestgrain-pest

• Gondwanocrypticus

  Gondwanocrypticus is a genus of darkling beetles in the family Tenebrionidae, established by Koch in 1950. The genus is currently treated as a synonym in some taxonomic treatments. Records indicate presence in the Nearctic and Neotropical regions. The genus name references Gondwana, suggesting historical biogeographic connections to the southern supercontinent.

  Tenebrionidaedarkling-beetleGondwanansynonymNeotropicalNearctic

• Gondwanocrypticus pictus

  Gondwanocrypticus pictus is a species of darkling beetle (family Tenebrionidae) described by Gebien in 1928. The genus name Gondwanocrypticus suggests a Gondwanan distribution pattern, though specific details about this species' biology, ecology, and distribution remain poorly documented in available literature. The species epithet 'pictus' (Latin for 'painted') likely refers to distinctive coloration or markings.

  ColeopteraTenebrionidaedarkling-beetleGondwanan-distributionGebien-1928

• Haplandrus fulvipes

  Haplandrus fulvipes is a species of darkling beetle in the family Tenebrionidae, first described by Herbst in 1797. It is a small beetle native to eastern North America, with documented occurrence in southeastern Canada. The species is part of the diverse genus Haplandrus, which contains numerous small tenebrionid beetles. Based on iNaturalist records, it appears to be moderately well-observed in its native range.

  Tenebrionidaedarkling-beetleColeopteraNorth-AmericaCanada

• Helops angustus

  Helops angustus is a species of darkling beetle in the family Tenebrionidae, first described by LeConte in 1859. Darkling beetles in this genus are characterized by elongated, somewhat flattened bodies and antennae with bead-like segments. Members of Helops are typically found in arid and semi-arid habitats of western North America. The genus is distinguished from similar tenebrionid genera by its relatively slender form and antennal structure.

  ColeopteraTenebrionidaedarkling-beetleNorth-Americaarid-habitatLeConte-1859

• Helops arizonensis

  Helops arizonensis is a darkling beetle (family Tenebrionidae) described by George Henry Horn in 1874. The species epithet reflects its association with Arizona. As a member of the genus Helops, it belongs to a group of darkling beetles that can be distinguished from superficially similar ground beetles (Carabidae) by concealed mandibles and bead-like antennae, though some Helops species exhibit ground beetle-like antennae. The genus Helops is noted for species with elongated antennae segments that approach the filiform appearance of carabids, making identification more challenging than with typical darkling beetles.

  darkling-beetleTenebrionidaeArizonaColeopterataxonomy

• Helops attenuatus

  attenuated darkling beetle

  Helops attenuatus is a North American darkling beetle in the family Tenebrionidae, first described by LeConte in 1851. The species belongs to a genus characterized by elongated body forms and relatively long antennae compared to many tenebrionids. Like other members of the tribe Helopini, it exhibits morphological traits that can cause confusion with ground beetles (Carabidae), particularly in antennae structure.

  darkling-beetleTenebrionidaeHelopiniNorth-Americaelongated-bodylong-antennaeCarabidae-mimicry

• Helops bachei

  Helops bachei is a darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1861. The genus Helops contains species that can be challenging to distinguish from ground beetles (Carabidae) due to some shared morphological features. Like other Helops species, H. bachei possesses antennae with segments longer than wide, resembling the filamentous antennae of ground beetles rather than the bead-like antennae typical of many darkling beetles. However, it can be identified as a tenebrionid by its concealed mandibles. The species is native to North America.

  ColeopteraTenebrionidaedarkling-beetleNorth-AmericaLeConte-1861Helopsidentification-challengeCarabidae-mimicry

• Helops callosus

  Helops callosus is a darkling beetle in the family Tenebrionidae, described by Casey in 1890. The genus Helops belongs to a group of darkling beetles that can be challenging to distinguish from ground beetles (Carabidae) without close examination. Members of this genus exhibit some characteristics that blur typical distinctions between carabids and tenebrionids, such as antennae structure that resembles ground beetles while retaining concealed mandibles typical of darkling beetles.

  Tenebrionidaedarkling-beetleHelopsColeopteraidentification-challengeCasey-1890

• Helops confluens

  Helops confluens is a species of darkling beetle in the family Tenebrionidae, described by Casey in 1924. As a member of the genus Helops, it belongs to a group of beetles commonly found in arid and semi-arid habitats across North America. The genus Helops is part of the diverse darkling beetle family, which contains over 20,000 described species worldwide. Information specific to H. confluens appears limited in the available literature.

  darkling-beetleTenebrionidaeNorth-AmericaCasey-1924poorly-known-species

• Helops discipulus

  Helops discipulus is a species of darkling beetle in the family Tenebrionidae, described by Casey in 1891. As a member of the genus Helops, it belongs to the tribe Helopini within the subfamily Tenebrioninae. The genus Helops is primarily distributed in North America. Darkling beetles in this genus are typically found in terrestrial habitats and are characterized by their concealed mandibles and bead-like antennae segments, distinguishing them from predatory ground beetles.

  ColeopteraTenebrionidaedarkling-beetleHelopsNorth-AmericaCasey-1891Helopini

• Helops farctus

  Helops farctus is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1858. As a member of this family, it belongs to a group of beetles characterized by hardened forewings and typically detritivorous or herbivorous feeding habits. The genus Helops is part of the diverse tenebrionid fauna of North America.

  darkling-beetleTenebrionidaeNorth-AmericaColeoptera

• Helops fresnoensis

  Helops fresnoensis is a darkling beetle in the family Tenebrionidae, described by Blaisdell in 1931. The species epithet indicates a type locality in Fresno, California. As a member of the genus Helops, it belongs to a group of darkling beetles that can be distinguished from ground beetles by concealed mandibles and bead-like antennae segments, though some Helops species have antennae that approach the filiform condition seen in Carabidae.

  ColeopteraTenebrionidaedarkling-beetleHelopsCalifornia-endemicBlaisdell-1931

• Helops impolitus

  Helops impolitus is a darkling beetle species in the family Tenebrionidae, first described by John Lawrence LeConte in 1866. As a member of the genus Helops, it belongs to a group of beetles that can be challenging to distinguish from ground beetles (Carabidae) due to superficial similarities. The genus Helops includes species that may exhibit atypical morphological traits for darkling beetles, such as antennae that resemble those of ground beetles.

  Tenebrionidaedarkling-beetleColeopteraLeConte-1866Helopsidentification-challenge

• Helops laetus

  Helops laetus is a species of darkling beetle in the family Tenebrionidae, described by LeConte in 1857. It belongs to the genus Helops, a group of darkling beetles found in western North America. The species is known from British Columbia, Canada. Darkling beetles in this genus are typically associated with forested habitats and are characterized by their elongated body form and relatively long antennae compared to some other tenebrionid genera.

  darkling-beetleTenebrionidaewestern-North-AmericaLeConte-1857British-Columbia

• Helops opacus

  Helops opacus is a species of darkling beetle in the family Tenebrionidae, described by LeConte in 1859. Like other members of the genus Helops, it belongs to a group of darkling beetles that are not part of the well-known Eleodes genus but share the family characteristics of concealed mandibles and bead-like antennae segments. The genus Helops is relatively obscure compared to the more frequently encountered darkling beetles, and specific ecological details for H. opacus remain poorly documented in the available literature.

  darkling-beetleTenebrionidaeColeopteraLeConte-1859North-Americaobscure-genuspoorly-known-species

• Helops perforatus

  Helops perforatus is a species of darkling beetle in the family Tenebrionidae, described by Horn in 1880. The genus Helops belongs to a group of darkling beetles that can be challenging to distinguish from ground beetles (Carabidae) due to convergent morphological traits. Like other members of its family, it is likely associated with decomposing organic matter and aridland ecosystems, though specific natural history details for this species remain poorly documented.

  darkling-beetleTenebrionidaeColeopteraNorth-Americaaridland-insectsdecomposer

• Helops pernitens

  Helops pernitens is a darkling beetle in the family Tenebrionidae, first described by LeConte in 1861. The species is notable for possessing antennae that resemble those of ground beetles (Carabidae)—elongated and filament-like rather than the bead-like form typical of most tenebrionids. This morphological convergence can lead to misidentification with predatory ground beetles. The species is found in western North America, with records from British Columbia, Canada.

  darkling-beetleTenebrionidaemimicryidentification-challengewestern-North-AmericaBritish-Columbia

• Helops rufipes

  Helops rufipes is a darkling beetle in the family Tenebrionidae, first described by LeConte in 1851. The species epithet "rufipes" refers to its reddish legs. As a member of the genus Helops, it belongs to a group of darkling beetles that can be challenging to distinguish from ground beetles (Carabidae) due to superficial similarities. The genus Helops includes species that exhibit antennae resembling those of ground beetles, with segments longer than wide, unlike the bead-like antennae typical of many other darkling beetles.

  darkling-beetleTenebrionidaeHelopsColeopteraNorth-America

• Helops rugicollis

  Helops rugicollis is a darkling beetle in the family Tenebrionidae, described by LeConte in 1866. The genus Helops includes species with elongated bodies and antennae that can resemble ground beetles, requiring careful examination for proper identification. This species is part of a diverse group of tenebrionids found in various habitats across North America.

  Tenebrionidaedarkling-beetleColeopteraHelopsNorth-Americaidentification-challenge

• Helops rugulosus

  Helops rugulosus is a species of darkling beetle in the family Tenebrionidae, first described by John Lawrence LeConte in 1851. The genus Helops belongs to the tribe Helopini within the subfamily Tenebrioninae. Species in this genus are typically associated with decaying wood and forest floor habitats. Like other darkling beetles, they are characterized by concealed mandibles and bead-like antennae segments.

  darkling-beetleTenebrionidaesaproxylicforest-beetleNorth-Americadecaying-wood

• Helops spretus

  Helops spretus is a species of darkling beetle in the family Tenebrionidae, described by George Henry Horn in 1880. The genus Helops belongs to a diverse family of beetles commonly found in arid and semi-arid environments. Members of this genus are typically elongate and somewhat flattened in body form. No specific biological or ecological information for H. spretus has been documented in the provided sources.

  Tenebrionidaedarkling-beetletaxonomic-confusion-riskinsufficient-data

• Helops stenotrichoides

  Helops stenotrichoides is a species of darkling beetle in the family Tenebrionidae, described by Blaisdell in 1895. It belongs to the genus Helops, which comprises darkling beetles found primarily in western North America. Like other members of its family, it is likely associated with decomposing plant matter and detritus in arid or semi-arid environments. The species name suggests a resemblance to or relationship with another taxon bearing the name 'stenotrichus'.

  Tenebrionidaedarkling-beetleHelopsColeopteraNorth-AmericaBlaisdell-1895

• Helops sulcipennis

  Helops sulcipennis is a species of darkling beetle (family Tenebrionidae) described by John Lawrence LeConte in 1866. As a member of the tribe Helopini, this beetle belongs to a group of elongate, moderately sized tenebrionids that are primarily found in North America. The specific epithet 'sulcipennis' refers to grooved or furrowed elytra, a characteristic feature of this species. Like other Helopini, this beetle is likely associated with decaying wood and forest floor habitats.

  darkling-beetleTenebrionidaeHelopiniNorth-AmericasaproxylicwoodlandLeConte-1866

• Helops tumescens

  Helops tumescens is a species of darkling beetle in the family Tenebrionidae, first described by LeConte in 1866. The genus Helops is part of a diverse family of beetles commonly found in arid and semi-arid environments. Darkling beetles in this family are generally characterized by their robust exoskeletons and slow, deliberate movement.

  ColeopteraTenebrionidaedarkling-beetleHelopsLeConte-1866North-America

• Hymenochara arizonensis

  Hymenochara arizonensis is a species of darkling beetle in the family Tenebrionidae, described by Campbell in 1978. As a member of this large beetle family, it shares characteristics typical of tenebrionids including a hardened exoskeleton and generally nocturnal habits. The species epithet 'arizonensis' indicates its association with Arizona, though specific details about its biology remain poorly documented in available literature.

  darkling-beetleTenebrionidaeColeopteraArizona-endemicCampbell-1978nocturnal-beetledesert-beetle

• Hymenochara rufipes

  Hymenochara rufipes is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1824. The specific epithet "rufipes" refers to reddish legs, a common diagnostic trait in this species. As a member of Tenebrionidae, it belongs to one of the largest beetle families, with members typically associated with dry habitats and often exhibiting nocturnal behavior. The species is documented from eastern Canada, specifically Ontario and Québec.

  Tenebrionidaedarkling-beetleColeopteraCanadaOntarioQuébecLeConte-1824rufipesHymenochara

• Hymenorus

  comb-clawed beetles

  Hymenorus is a genus of comb-clawed beetles in the family Tenebrionidae, containing more than 160 described species. These beetles were formerly classified in their own family Alleculidae but are now recognized as a subfamily within Tenebrionidae. They are characterized by their distinctive antennae and do not conform to the typical appearance of 'classic' darkling beetles.

  ColeopteraTenebrionidaeAlleculinaedarkling-beetlescomb-clawed-beetlesreclassified-taxon

• Hymenorus

  comb-clawed beetle

  Hymenorus is a genus of comb-clawed beetles in the subfamily Alleculinae, family Tenebrionidae. These beetles were formerly classified in their own family Alleculidae before being subsumed into Tenebrionidae. They do not resemble 'classic' darkling beetles and represent one of several groups that complicate identification of this family. The 'sp-two-eastern' designation suggests an undescribed or provisionally identified species found in eastern North America.

  ColeopteraTenebrionidaeAlleculinaecomb-clawed-beetleundescribed-specieseastern-North-Americataxonomic-revisionformer-family-Alleculidae

• Hymenorus arkansanus

  Hymenorus arkansanus is a species of comb-clawed beetle in the family Tenebrionidae, subfamily Alleculinae. It was described by Fall in 1931. The genus Hymenorus was formerly classified as a separate family (Alleculidae) but has been reclassified as a subfamily within Tenebrionidae. Members of this genus do not resemble typical darkling beetles in appearance.

  darkling-beetlecomb-clawed-beetleAlleculinaeColeopteraTenebrionidaeNorth-America

• Hymenorus densus

  Hymenorus densus is a small beetle species in the family Tenebrionidae, specifically within the subfamily Alleculinae (comb-clawed beetles). The genus Hymenorus was historically classified as a separate family (Alleculidae) before being subsumed into Tenebrionidae. Species in this genus are characterized by comb-like tarsal claws and relatively long, thread-like antennae that can resemble those of ground beetles (Carabidae), potentially causing identification confusion. H. densus was described by John Lawrence LeConte in 1866 and is known from Mexico.

  darkling-beetlecomb-clawed-beetleTenebrionidaeAlleculinaeMexicoLeConte-1866

• Hymenorus discretus

  Hymenorus discretus is a species of comb-clawed beetle in the family Tenebrionidae, subfamily Alleculinae. It was described by Thomas L. Casey in 1891. Like other members of the Alleculinae, it does not conform to the typical 'darkling beetle' morphology, possessing antennae that more closely resemble those of ground beetles (Carabidae). The species is recorded from Ontario and Québec in Canada.

  comb-clawed-beetleAlleculinaeTenebrionidaeColeopteraCanada

• Hymenorus dissensus

  Comb-clawed beetle

  Hymenorus dissensus is a species of comb-clawed beetle in the family Tenebrionidae, subfamily Alleculinae. Like other members of this subfamily, it possesses comb-like tarsal claws. The genus Hymenorus was historically classified as a separate family (Alleculidae) before being incorporated into Tenebrionidae. Very little species-specific information is documented for H. dissensus.

  darkling-beetlecomb-clawed-beetleAlleculinaeTenebrionidaeColeoptera

• Hymenorus dorsalis

  Hymenorus dorsalis is a small beetle in the family Tenebrionidae, specifically within the subfamily Alleculinae (comb-clawed beetles). Originally described by Schwarz in 1878, this species is part of a group of darkling beetles that were formerly classified as a separate family before being assimilated into Tenebrionidae. The genus Hymenorus is characterized by antennae with longer segments that superficially resemble those of ground beetles (Carabidae), making visual identification challenging without close examination. Records of this species are sparse, with limited observational data available.

  darkling-beetlecomb-clawed-beetleAlleculinaeColeopteraTenebrionidaeHymenorusNorth-AmericaSchwarz-1878

• Hymenorus heteropygus

  Hymenorus heteropygus is a small darkling beetle in the subfamily Alleculinae (comb-clawed beetles), described by Fall in 1931. As a member of the Tenebrionidae, it belongs to a group of beetles formerly classified as a separate family but now subsumed into the darkling beetles. Species in this genus and subfamily are typically small, inconspicuous beetles that do not resemble the more familiar 'classic' darkling beetles like Eleodes.

  ColeopteraTenebrionidaeAlleculinaecomb-clawed-beetledarkling-beetleFall-1931

• Hymenorus humeralis

  Hymenorus humeralis is a species of comb-clawed beetle in the family Tenebrionidae, subfamily Alleculinae. First described by LeConte in 1866, this species belongs to a group formerly classified as the separate family Alleculidae. Comb-clawed beetles are characterized by their distinctive antennae and tarsal claws, and are now recognized as a subfamily within the darkling beetles.

  TenebrionidaeAlleculinaecomb-clawed-beetledarkling-beetleNorth-AmericaLeConte-1866Coleoptera

• Hymenorus illusus

  Hymenorus illusus is a small beetle species in the family Tenebrionidae, specifically within the subfamily Alleculinae (comb-clawed beetles). The species was described by Fall in 1931. As a member of Alleculinae, it possesses the distinctive comb-like tarsal claws that characterize this group. Comb-clawed beetles were formerly treated as a separate family but are now classified within Tenebrionidae.

  ColeopteraTenebrionidaeAlleculinaecomb-clawed-beetledarkling-beetleNorth-AmericaFall-1931

• Hymenorus niger

  Hymenorus niger is a species of comb-clawed beetle in the family Tenebrionidae. Formerly classified in the separate family Alleculidae, this species was reassigned to Tenebrionidae as part of the subfamily Alleculinae. The genus Hymenorus is characterized by elongated bodies and antennae with bead-like segments. Hymenorus niger has been recorded in several Canadian provinces including Manitoba, New Brunswick, Nova Scotia, Ontario, and Prince Edward Island.

  comb-clawed-beetleAlleculinaeTenebrionidaeColeopteraCanada

• Hymenorus obesus

  Hymenorus obesus is a small comb-clawed beetle in the family Tenebrionidae, subfamily Alleculinae. It was described by Thomas L. Casey in 1891 based on specimens from North America. The species belongs to a group formerly classified as the separate family Alleculidae, now treated as a subfamily within Tenebrionidae. Members of this genus are typically small, soft-bodied beetles with comb-like claws on their tarsi. Available records indicate this species occurs in eastern and central Canada.

  ColeopteraTenebrionidaeAlleculinaecomb-clawed-beetleNorth-AmericaCanada

• Hymenorus picipennis

  Hymenorus picipennis is a species of comb-clawed beetle in the family Tenebrionidae, subfamily Alleculinae. The genus Hymenorus was historically classified as a separate family but is now treated as a subfamily within Tenebrionidae. Species in this group are small beetles with distinctive antennae and are part of the diverse darkling beetle fauna of North America. The specific epithet "picipennis" refers to the pitch-black coloration of the legs.

  Alleculinaecomb-clawed-beetledarkling-beetleNorth-AmericaTenebrionidae

• Hymenorus sinuatus

  Hymenorus sinuatus is a species of comb-clawed beetle in the family Tenebrionidae, subfamily Alleculinae. The genus Hymenorus was formerly classified in its own family but is now treated as part of Tenebrionidae. This species was described by Fall in 1931. Members of the Alleculinae differ from typical darkling beetles in having more elongate bodies and comb-like claws on the hind tarsi.

  comb-clawed-beetleAlleculinaedarkling-beetleTenebrionidaeColeopteraNorth-AmericaBritish-Columbia

• Hymenorus texensis

  Hymenorus texensis is a species of comb-clawed beetle in the family Tenebrionidae, subfamily Alleculinae. Described by Fall in 1931, this species belongs to a group formerly treated as the separate family Alleculidae before being reclassified as a subfamily of Tenebrionidae. Comb-clawed beetles in this genus typically have antennae with segments longer than wide, resembling ground beetles (Carabidae), but differ in having concealed mandibles. The species epithet "texensis" indicates a type locality or primary distribution in Texas.

  beetleColeopteraTenebrionidaeAlleculinaecomb-clawed-beetleTexas-endemic

• Idiobates castaneus

  Idiobates castaneus is a North American darkling beetle and the sole member of its genus. The species is known from eastern Canada and has been documented in Ontario and Québec. Its life history includes described larval and pupal stages. The genus Idiobates is monotypic within the family Tenebrionidae.

  darkling-beetleTenebrionidaemonotypic-genusNorth-AmericaCanada

• Iphthiminus opacus

  Cloudy Darkling Beetle

  A darkling beetle in the family Tenebrionidae, found in eastern North America from Canada through the northeastern United States. Adults are nocturnal and have been observed on coniferous trees, particularly pines. The species is part of a genus that includes several North American species associated with forested habitats.

  Tenebrionidaedarkling-beetlenocturnalconiferous-forestNorth-AmericaIphthiminus

• Isomira comstocki

  Isomira comstocki is a species of darkling beetle in the family Tenebrionidae, described by Papp in 1956. The species is recorded from western Canada, specifically Alberta and British Columbia. As a member of the genus Isomira, it belongs to a group of small to medium-sized tenebrionid beetles. Information on its biology and ecology is limited.

  ColeopteraTenebrionidaeIsomiradarkling-beetleCanadaAlbertaBritish-Columbiawestern-North-America

• Isomira quadristriata

  Isomira quadristriata is a species of darkling beetle in the family Tenebrionidae, first described by Couper in 1865. It belongs to a genus of small to medium-sized beetles commonly associated with decaying organic matter. The species has been documented across multiple Canadian provinces, suggesting adaptation to temperate North American environments.

  darkling-beetleCanadian-faunaTenebrionidae

• Isomira valida

  Isomira valida is a species of darkling beetle in the family Tenebrionidae, described by Schwarz in 1878. It is a member of the genus Isomira, which comprises small to medium-sized beetles distributed primarily in the Nearctic region. The species has been documented in Ontario, Canada, based on available occurrence records. As with many tenebrionid beetles, detailed natural history information for this species remains limited in published literature.

  beetleColeopteraTenebrionidaedarkling-beetleNearctic

• Isomira variabilis

  Isomira variabilis is a species of darkling beetle in the family Tenebrionidae, first described by Horn in 1875. Like other members of this large beetle family, it is likely associated with decaying plant matter and soil habitats. The genus Isomira contains small to medium-sized beetles found primarily in North America. Specific ecological details for this species remain poorly documented in available sources.

  ColeopteraTenebrionidaedarkling-beetleNorth-America

• Lagriinae

  Long-jointed Beetles

  Lagriinae is a subfamily of darkling beetles within the family Tenebrionidae, comprising more than 270 genera grouped into 11 tribes. Adults are medium-sized (5–12 mm) with characteristic Tenebrionidae features including a 5-5-4 tarsal formula and antennal bases concealed by canthi. The subfamily is notable for its defensive symbiosis with Burkholderia bacteria that produce the antifungal compound lagriamide, protecting eggs and larvae from antagonistic fungi. This symbiosis has evolved through multiple independent horizontal acquisition events rather than strict co-diversification.

  defensive-symbiosisBurkholderialagriamidegenome-erosionhorizontal-transmissionmimicrysexual-dimorphismapterydarkling-beetlesTenebrionidaeColeopteramutualismfungal-defenseovipositor-glands

• Lagriini

  Lagriini is a tribe of darkling beetles (Tenebrionidae: Lagriinae) established by Latreille in 1825. Members are small beetles, with some species such as Adynata poupillieri measuring 4–5 mm. The tribe occurs across multiple continents with documented diversity in North Africa, including Morocco and Algeria. Moroccan species have been subject to recent taxonomic revision including lectotype designation and identification keys.

  TenebrionidaeLagriinaeColeopteraNorth-AfricaMoroccotaxonomic-revision

• Latheticus

  Latheticus is a genus of darkling beetles (Tenebrionidae) with nearly cosmopolitan distribution. The genus contains at least two species: Latheticus oryzae (long-headed flour beetle) and Latheticus prosopis. L. oryzae is a significant economic pest of stored grains and fermented products, notable for its slender body, protruding head morphology, and remarkable adaptability to high-temperature environments.

  stored-product-pestgrain-pestTenebrionidaecosmopolitanhigh-temperature-adaptedfermented-product-pest

• Latheticus oryzae

  Long-Headed Flour Beetle

  Latheticus oryzae is a small stored-product pest beetle in the family Tenebrionidae, commonly known as the long-headed flour beetle. It infests milled grain products, cereals, flour, and rice, with both adults and larvae feeding directly on these substrates. The species is notable for its elongated head morphology and resemblance to Tribolium castaneum. It has been documented in high-temperature environments including Chinese baijiu-producing regions, where it infests fermented Daqu starter cultures.

  stored-product-pestgrain-pestTenebrionidaeeconomic-pestfermented-product-pest

• Lepidocnemeplatia sericea

  Lepidocnemeplatia sericea is a darkling beetle species in the family Tenebrionidae, first described by Horn in 1870. The species has been recorded from Mexico and Hawaii, with iNaturalist documenting 32 observations. As a member of the Tenebrionidae, it belongs to a large family of beetles commonly known as darkling beetles, which are predominantly detritivores and are particularly diverse in arid and semi-arid environments.

  ColeopteraTenebrionidaedarkling-beetleMexicoHawaiiintroduced-species

• Liodema

  Liodema is a genus of darkling beetles (family Tenebrionidae) established by Horn in 1870. The genus is native to the Nearctic and Neotropical regions, with records from Colorado and broader distribution across the Americas. It is a poorly documented genus with very few observations in citizen science databases.

  ColeopteraTenebrionidaedarkling-beetleNearcticNeotropicalHorn-1870rarely-observed

• Liodema laeve

  Liodema laeve is a species of darkling beetle in the family Tenebrionidae. As a member of this family, it likely exhibits the hardened forewings (elytra) characteristic of beetles and the general body plan typical of tenebrionids. No specific observations or detailed biological studies of this species have been documented in the provided sources.

  ColeopteraTenebrionidaedarkling-beetlebeetle

• Litasida

  Litasida is a genus of darkling beetles in the family Tenebrionidae, established by Casey in 1912. The genus is poorly documented, with minimal published information available regarding its species composition, ecology, and natural history. It belongs to the diverse beetle family Tenebrionidae, which contains over 20,000 described species worldwide, many of which are adapted to arid environments. The genus appears to be restricted to the Nearctic region based on available distribution records.

  Tenebrionidaedarkling-beetleNearcticCasey-1912obscure-genus

• Lobometopon fusiforme

  Lobometopon fusiforme is a species of darkling beetle in the family Tenebrionidae. It was originally described by Casey in 1890 under the genus Epitragus and later transferred to Lobometopon. The species is known from Mexico and is represented by a small number of observations. Its taxonomic status is marked as doubtful in some databases, suggesting potential issues with classification or identification.

  beetledarkling-beetleColeopteraTenebrionidaeMexicodoubtful-taxonomy

• Lobopoda

  Lobopoda is a genus of comb-clawed beetles in the family Tenebrionidae, subfamily Alleculinae. The genus contains numerous species distributed across the Nearctic and Neotropical regions. The type species is Lobopoda striata. Members of this genus are characterized by the distinctive comb-like tarsal claws that give the group its common name.

  beetlecomb-clawed-beetledarkling-beetleTenebrionidaeAlleculinae

• Lobopoda nigrans

  Lobopoda nigrans is a species of darkling beetle in the family Tenebrionidae, described by Melsheimer in 1846. It belongs to the genus Lobopoda, a group of small to medium-sized beetles found primarily in North America. The species has been documented through limited observations, with 18 records on iNaturalist as of the data cutoff. Like other tenebrionids, it is likely associated with decaying organic matter and dry habitats.

  darkling-beetleTenebrionidaeNorth-Americaunderstudied-species

• Lystronychus championi

  Lystronychus championi is a species of darkling beetle in the family Tenebrionidae, described by George Henry Horn in 1894. As a member of this diverse beetle family, it belongs to a group known for their adaptation to arid environments and nocturnal habits. The species epithet honors an individual named Champion, likely the collector or another person significant to its discovery. Very little specific biological information is available for this particular species.

  ColeopteraTenebrionidaedarkling-beetleHorn-1894insectbeetledesert-beetlenocturnal-beetle

• Lystronychus piliferus

  Lystronychus piliferus is a species of darkling beetle (family Tenebrionidae) described by Champion in 1888. It is one of approximately 20 species in the genus Lystronychus, a group of tenebrionids found in the Americas. The species has been documented in Colombia and Mexico based on specimen records. Like other members of Tenebrionidae, it is adapted to arid or semi-arid environments, though specific ecological details remain poorly documented.

  TenebrionidaeColeopteraNeotropicalChampion-1888understudied-species

• Lystronychus scapularis

  Lystronychus scapularis is a species of darkling beetle in the family Tenebrionidae, described by Champion in 1888. It belongs to a diverse family of beetles commonly found in arid and semi-arid environments. The genus Lystronychus is part of the tenebrionid radiation in North America, with this species recorded from Mexico.

  TenebrionidaeColeopteradarkling-beetleMexicoChampion-1888LystronychusNorth-America

• Menoeceus

  Menoeceus is a genus of darkling beetles in the family Tenebrionidae, described by Champion in 1888. The genus is distributed in the Nearctic and Neotropical regions. As a tenebrionid genus, it belongs to a large and diverse family of beetles commonly associated with arid and semi-arid environments. The genus name derives from Greek mythology, though this etymological origin has no biological significance.

  darkling-beetleTenebrionidaeColeopteraNearcticNeotropical

• Menoeceus texanus

  Menoeceus texanus is a species of darkling beetle in the family Tenebrionidae, described by Champion in 1888. The genus Menoeceus is a small group within this large family of beetles. Very little specific information is available about this particular species beyond its taxonomic classification.

  darkling-beetleTenebrionidaeColeopteraTexasChampion-1888

• Meracantha

  Meracantha is a genus of darkling beetles in the family Tenebrionidae, established by Kirby in 1837. The genus contains one extant species, M. contracta, and one extinct species, M. lacustris, known from fossil remains. Members of this genus are found in North America.

  darkling-beetleTenebrionidaeNorth-Americaextinct-speciesfossil

• Meracantha contracta

  Contracted Darkling Beetle

  Meracantha contracta is a North American darkling beetle (Tenebrionidae) distinguished by its strongly convex, humped body profile and association with decaying wood. Adults measure 11-14 mm and are bronze-black when mature. The species overwinters as larvae within rotting logs, producing antifreeze compounds to survive temperatures down to approximately -11°C. It has been recorded from at least Ontario, Canada, with broader distribution across North America.

  darkling-beetleTenebrionidaewood-associatedoverwintering-larvaeantifreezelichen-feederNorth-America

• Merinus laevis

  Smooth Darkling Beetle

  Merinus laevis is a species of darkling beetle in the family Tenebrionidae, commonly known as the Smooth Darkling Beetle. It is native to eastern North America, with confirmed records from Ontario and Québec in Canada. As a member of the darkling beetle family, it likely occupies habitats typical of tenebrionids, though specific ecological details remain poorly documented in published literature.

  darkling-beetleTenebrionidaeColeopteraeastern-North-AmericaCanada

• Metaclisa

  Metaclisa is a genus of darkling beetles (Tenebrionidae) and the sole genus of the tribe Metaclisini. It contains at least four described species. The genus has a notably broad geographic distribution spanning multiple biogeographic realms.

  darkling-beetleTenebrionidaeMetaclisinidisjunct-distribution

• Metaclisa atra

  Metaclisa atra is a species of darkling beetle in the family Tenebrionidae, described by LeConte in 1866. The genus Metaclisa belongs to the subfamily Lagriinae within the diverse beetle family Tenebrionidae. Very little published information exists regarding the specific biology, ecology, or distribution of this particular species. The species epithet "atra" refers to its black coloration. Records in GBIF and iNaturalist indicate it is a rarely encountered species with limited observational data.

  TenebrionidaeLagriinaedarkling-beetleColeopterararely-documented

• Metopoloba pruinosa

  Metopoloba pruinosa is a species of darkling beetle in the family Tenebrionidae, first described by Horn in 1870. The species is classified within the order Coleoptera and is part of the diverse beetle fauna of North America. Very little specific biological information has been published for this particular species.

  ColeopteraTenebrionidaedarkling-beetleNorth-American-fauna

• Metoponium abnorme

  Metoponium abnorme is a species of darkling beetle in the family Tenebrionidae. The genus Metoponium is a small group within this large family of beetles, which are primarily distributed in arid and semi-arid regions. Very few records exist for this species, and its biology remains poorly documented.

  Tenebrionidaedarkling-beetleColeopteraMetoponiumrarely-recordeddata-deficient

• Metoponium abnorme abnorme

  Metoponium abnorme abnorme is a subspecies of darkling beetle in the family Tenebrionidae, originally described by LeConte in 1851. The genus Metoponium contains species associated with arid and semi-arid regions of western North America. As a nominate subspecies, it represents the typical form of Metoponium abnorme. Published records for this taxon are sparse, with no observations documented in major biodiversity databases.

  ColeopteraTenebrionidaedarkling-beetlesubspeciesnominate-subspeciesLeConte-1851

• Micromes

  Micromes is a genus of darkling beetles in the family Tenebrionidae, described by Casey in 1907. The genus is native to the Nearctic region. As a member of Tenebrionidae, it belongs to a large and diverse family of beetles commonly associated with arid and semi-arid environments. Specific information about the species within this genus and their biology remains poorly documented.

  darkling-beetlesTenebrionidaeNearcticCasey-1907

• Microschatia championi

  Microschatia championi is a species of darkling beetle in the family Tenebrionidae, described by Horn in 1893. The genus Microschatia belongs to a diverse family of primarily nocturnal beetles commonly found in arid and semi-arid environments. This species is known from Mexico based on distribution records.

  Tenebrionidaedarkling-beetleMexicoColeopteraHorn-1893

• Microschatia inaequalis

  Microschatia inaequalis is a species of darkling beetle (family Tenebrionidae) native to southwestern North America. Its known distribution is restricted to southern California south of Los Angeles and northern Baja California Norte. As a member of the Tenebrionidae, it belongs to a large family of beetles commonly associated with arid and semi-arid environments.

  darkling-beetleTenebrionidaeCaliforniaBaja-Californiaendemicarid-adaptedColeopteraNorth-Americasouthwestern-North-AmericaLeConte-1851

• Microschatia morata

  Microschatia morata is a species of darkling beetle in the family Tenebrionidae, first described by Horn in 1878. It belongs to a genus of small to medium-sized beetles distributed in North America. The species has been documented in Mexico based on collection records.

  darkling-beetleTenebrionidaeColeopteraMexicoNorth-America

• Mycetochara

  comb-clawed beetles

  Mycetochara is a genus of comb-clawed beetles in the family Tenebrionidae, containing at least 30 described species. The genus is classified in the subfamily Alleculinae and is distributed across Europe, Russia, and parts of North America. Recent taxonomic revisions have clarified species boundaries in European Russia and the Russian Caucasus, describing new species and resolving synonymies.

  comb-clawed-beetlesdarkling-beetlesTenebrionidaeAlleculinaeColeoptera

• Mycetochara bicolor

  Mycetochara bicolor is a species of darkling beetle in the family Tenebrionidae, described by Couper in 1865. It is known from eastern Canada, with records from New Brunswick, Nova Scotia, Ontario, and Quebec. As a member of the Tenebrionidae, it belongs to a large family of beetles commonly associated with decaying plant matter and fungi.

  TenebrionidaeColeopteradarkling-beetleCanadaNorth-America1865-description

• Mycetochara haldemani

  Mycetochara haldemani is a species of darkling beetle in the family Tenebrionidae. The genus Mycetochara comprises fungus-feeding beetles, and this species follows that ecological pattern. It is known from scattered observations across North America, with records from the Great Plains region. The specific epithet honors the entomologist Samuel Stehman Haldeman.

  Tenebrionidaedarkling-beetlefungivoreGreat-Plains

• Mycotrogus angustus

  Mycotrogus angustus is a species of darkling beetle in the family Tenebrionidae, described by Horn in 1870. The genus Mycotrogus belongs to a diverse family of beetles commonly known for their association with arid environments and detritivorous feeding habits. Very little specific information has been published about this particular species.

  darkling-beetleTenebrionidaeColeopteraHorn-1870

• Mycotrogus mentalis

  Mycotrogus mentalis is a darkling beetle species in the family Tenebrionidae, described by Blaisdell in 1923. The genus Mycotrogus is a small group within this large family of primarily detritivorous beetles. This species is known from Mexico, though detailed biological information remains limited in available literature. Like other tenebrionids, it likely occupies arid or semi-arid environments.

  darkling-beetleTenebrionidaeMexicoBlaisdell-1923

• Myrmechixenini

  Myrmechixenini is a tribe of darkling beetles (family Tenebrionidae) established by Jacquelin du Val in 1858. The tribe belongs to the subfamily Diaperinae within the speciose family Tenebrionidae, one of the largest families of beetles. Members of this tribe are characterized by their association with ant colonies, reflecting the etymology of the name (from Greek myrmex, ant, and xenia, hospitality). The tribe contains relatively few described species and is poorly represented in collections, with only 13 observations recorded on iNaturalist.

  myrmecophileinquilinecrypticrarely-collectedDiaperinaeTenebrionidae

• Myrmechixenus

  Myrmechixenus is a genus of darkling beetles in the family Tenebrionidae, subfamily Diaperinae. The genus contains two recognized species: M. lathridioides and M. picinus. Members of this genus are small beetles associated with ant colonies.

  ColeopteraTenebrionidaeDiaperinaeMyrmechixeniniant-associatedEuropeNorth-AmericaDenmarkNorwaySwedengenusdarkling-beetle

• Myrmechixenus lathridioides

  Myrmechixenus lathridioides is a small beetle in the family Tenebrionidae, described by Crotch in 1873. The genus name derives from Greek roots meaning 'ant guest,' indicating an association with ant colonies. It belongs to the subfamily Lagriinae, a group of darkling beetles with diverse ecological habits. The species epithet references a superficial resemblance to beetles in the family Lathridiidae (plaster beetles).

  myrmecophileTenebrionidaeColeopteraant-associated

• Nalassus

  A genus of darkling beetles (Tenebrionidae) comprising more than 70 species distributed across the Palearctic and North America. Species occupy diverse habitats from coniferous forests to alpine zones and steppe landscapes. The genus exhibits pronounced ecological specialization, with distinct species groups adapted to forest, alpine, or steppe environments and corresponding trophic niches.

  lichenophagyecological-specializationnocturnalPalearcticalpinesteppeforestTenebrionidaeHelopininiche-partitioningdisjunct-distribution

• Nalassus californicus

  Nalassus californicus is a species of darkling beetle in the family Tenebrionidae, first described by Mannerheim in 1843. The species epithet reflects its association with California. As a member of this large beetle family, it likely inhabits dry, terrestrial environments typical of many tenebrionids. Very few observations of this species have been recorded, with only two documented observations in iNaturalist as of the knowledge cutoff.

  ColeopteraTenebrionidaedarkling-beetledata-deficientrarely-observed

• Nalassus convexulus

  Nalassus convexulus is a small darkling beetle in the family Tenebrionidae, first described by LeConte in 1861. It belongs to a genus of beetles commonly associated with dead wood and forest floor habitats. The species is rarely encountered, with few documented observations.

  darkling-beetleTenebrionidaeNorth-Americararely-observed

• Neobaphion

  Neobaphion is a genus of darkling beetles (Tenebrionidae) established by Blaisdell in 1925. The genus is native to the Nearctic region and contains relatively few described species. As a member of the Tenebrionidae family, it belongs to one of the largest families of beetles, characterized by their generally cryptic habits and association with arid or semi-arid environments. The genus remains poorly studied, with limited published information on its biology and ecology.

  darkling-beetleNearcticdesert-beetleBlaisdellTenebrionidaeColeoptera

• Neomida

  Neomida is a genus of darkling beetles (family Tenebrionidae) containing approximately 18 described species. The genus was established by Latreille in 1829. At least one species, Neomida bicornis, has been documented in residential areas in the central United States, where adults are attracted to artificial light sources at night.

  darkling-beetlesTenebrionidaeColeopteranocturnallight-attracted

• Neomida bicornis

  Two-horned Darkling Beetle

  Neomida bicornis, commonly known as the Two-horned Darkling Beetle, is a small species of darkling beetle in the family Tenebrionidae. The species is characterized by the distinctive horn-like projections on its head, from which its specific epithet derives. It has been documented across eastern and central North America, with observations ranging from Canada to the United States. The species is attracted to artificial light sources at night.

  Tenebrionidaedarkling-beetlenocturnalhornNorth-America

• Neomida ferruginea

  Neomida ferruginea is a species of darkling beetle in the family Tenebrionidae, first described by LeConte in 1866. The species is known from Mexico based on distribution records. As a member of Tenebrionidae, it shares family characteristics including a hardened exoskeleton and typically nocturnal habits, though specific biological details for this species remain poorly documented.

  darkling-beetleTenebrionidaeMexicoLeConte-1866

• Nocibiotes

  Nocibiotes is a genus of darkling beetles in the family Tenebrionidae, established by Casey in 1895. It is distributed in the Nearctic region. The genus is relatively poorly documented in scientific literature, with limited published information on its biology and ecology.

  Tenebrionidaedarkling-beetleNearcticCasey-1895

• Nyctoporis aequicollis

  Nyctoporis aequicollis is a darkling beetle (family Tenebrionidae) described by Eschscholtz in 1831. It belongs to a genus of beetles found in western North America. The species is rarely documented, with limited published information on its biology.

  darkling-beetleTenebrionidaewestern-North-Americararely-documented

• Nyctoporis cristata

  Nyctoporis cristata is a species of darkling beetle in the family Tenebrionidae, first described by Eschscholtz in 1831. It belongs to the tribe Nyctoporini, a group of tenebrionid beetles often associated with arid and semi-arid environments. The species epithet 'cristata' refers to a crested or ridged feature, likely describing a morphological characteristic of the pronotum or elytra. Like other members of its genus, it is presumed to be nocturnal and ground-dwelling.

  darkling-beetleTenebrionidaenocturnalground-dwellingNorth-America

• Nyctoporis sponsa

  Nyctoporis sponsa is a darkling beetle (family Tenebrionidae) described by Casey in 1907. The genus Nyctoporis is native to western North America, and members are generally associated with arid and semi-arid habitats. The species is documented in scattered records across the southwestern United States.

  Tenebrionidaedarkling-beetlewestern-North-AmericaCasey-1907

• Oenopion

  Oenopion is a genus of darkling beetles (family Tenebrionidae) described by Champion in 1885. The genus is distributed in the Nearctic and Neotropical regions. As with many tenebrionid genera, detailed biological information remains limited in published literature.

  ColeopteraTenebrionidaedarkling-beetleNearcticNeotropicalChampion-1885

• Oenopion zopheroides

  Oenopion zopheroides is a species of darkling beetle in the family Tenebrionidae, first described by Horn in 1874. The species is endemic to Mexico and belongs to a genus of relatively obscure beetles with limited published documentation. Available records indicate it is a rarely collected species with few observations in natural history databases.

  TenebrionidaeColeopteraMexicoendemicdarkling-beetle

• Onychomira

  Onychomira is a genus of darkling beetles in the family Tenebrionidae, established by Campbell in 1984. It is a small genus with limited documented species, restricted to the Nearctic region. Members are ground-dwelling beetles associated with arid and semi-arid environments typical of many tenebrionids.

  Tenebrionidaedarkling-beetleNearcticarid-habitat

• Onychomira floridensis

  Onychomira floridensis is a darkling beetle (family Tenebrionidae) described by Campbell in 1984. The genus Onychomira is part of the speciose family Tenebrionidae, commonly known as darkling beetles, which are primarily detritivores and are abundant in arid and semi-arid environments. No specific ecological or behavioral studies have been published for this species.

  ColeopteraTenebrionidaedarkling-beetleFlorida-endemicCampbell-1984PolyphagaCucujiformiaOnychomiraNorth-AmericaUSASoutheastern-United-Statesundocumented-ecologydata-deficient

• Opatrina

  Opatrina is a subtribe of darkling beetles (family Tenebrionidae) established by Brullé in 1832. It belongs to the tribe Opatrini within the subfamily Blaptinae. The subtribe contains multiple genera distributed in Southern Africa, including Helibatus (with two known species: H. morio and H. banaszkiewiczae) and Planostibes. Members of this subtribe are characterized by morphological features of the metaventrum used in species-level identification.

  ColeopteraTenebrionidaeOpatrinidarkling-beetlesSouthern-AfricaAfrotropicalsubtribe

• Opatrini

  darkling beetles

  Opatrini is a tribe of darkling beetles (Tenebrionidae) comprising approximately 281 genera and about 4,000 species, representing one of the most species-rich lineages within the family. The tribe was historically placed in subfamily Tenebrioninae but was transferred to the resurrected subfamily Blaptinae in 2021 based on phylogenetic analyses. The fossil genus Eupachypterus from Eocene Oise amber demonstrates that Opatrini-like morphology has persisted for over 50 million years. The tribe includes several subtribes, with molecular studies supporting the monophyly of Blapstinina and revealing complex relationships among geographically distributed genera.

  darkling-beetlesTenebrionidaeBlaptinaephylogeneticsfossil-recordEocenetaxonomic-revision

• Oploptera simplicicolle

  Oploptera simplicicolle is a species of darkling beetle in the family Tenebrionidae. The genus Oploptera contains multiple described species, though published information on this particular species remains limited. It is known from a small number of observations, primarily in southern Africa.

  darkling-beetleTenebrionidaeAfrican-fauna

• Palorus

  Palorus is a genus of darkling beetles in the family Tenebrionidae, established by Mulsant in 1854. The genus contains at least four described species, including several recognized as pests of stored grain products. Species such as Palorus ratzeburgi (small-eyed flour beetle) and P. subdepressus (depressed flour beetle) are economically significant stored product pests. The genus belongs to the tribe Palorini within the subfamily Tenebrioninae.

  stored-product-pestgrain-pestTenebrionidaedarkling-beetleColeoptera

• Palorus subdepressus

  Depressed Flour Beetle

  Palorus subdepressus, commonly known as the depressed flour beetle, is a species of darkling beetle in the family Tenebrionidae. The species has been recorded in Europe and North America, with additional distribution records from the Azores (Terceira) and Austria. It belongs to a genus associated with stored products and dry organic matter.

  ColeopteraTenebrionidaestored-product-beetledarkling-beetle

• Paratenetus exutus

  Paratenetus exutus is a species of darkling beetle (family Tenebrionidae) described in 2014. The genus Paratenetus belongs to a group of tenebrionids associated with arid and semi-arid environments. This species is known from a small number of observations, reflecting either genuine rarity or limited survey effort in its range.

  ColeopteraTenebrionidaedarkling-beetlerecently-described-species

• Paratenetus fuscus

  Brownish Darkling Beetle

  Paratenetus fuscus is a species of darkling beetle in the family Tenebrionidae. The species was described by LeConte in 1850. Records indicate a distribution across multiple Canadian provinces from British Columbia to Ontario, including northern territories. As a member of the Tenebrionidae family, it shares the general characteristics of darkling beetles, including a hardened exoskeleton and typically cryptic coloration.

  darkling-beetleTenebrionidaeColeopteraCanada

• Paratenetus texanus

  Paratenetus texanus is a species of darkling beetle in the family Tenebrionidae, described in 2014. The genus Paratenetus was established relatively recently, and this species is one of its members. As a tenebrionid beetle, it belongs to a large family of primarily detritivorous beetles commonly found in arid and semi-arid environments. Very little specific biological information has been published about this particular species.

  ColeopteraTenebrionidaedarkling-beetleMexico2014-description

• Pechalius

  Pechalius is a genus of darkling beetles (family Tenebrionidae) established by Casey in 1907. The genus is distributed in the Nearctic and Neotropical regions. It is represented by a small number of observations and poorly documented in the literature. Species-level taxonomy remains incompletely resolved.

  Tenebrionidaedarkling-beetlesNearcticNeotropical

• Pedinini

  Pedinini is a tribe of darkling beetles (family Tenebrionidae) comprising approximately 19 genera. Molecular evidence from Kamiński et al. (2021) supports a revised concept recognizing three subtribes: Helopinina, Leichenina, and Pedinina. The tribe has a predominantly Afrotropical distribution, with genera occurring in Southern Africa, East Africa, and Madagascar. Taxonomic revisions have been published for multiple genera including Anaxius, Tragardhus, Quadrideres, and Anchophthalmops.

  darkling-beetlesAfrotropicalTenebrionidaesubtribes-Helopinina-Leichenina-Pedinina

• Pelecyphorus

  Pelecyphorus is a genus of darkling beetles (family Tenebrionidae). The genus has been assigned to different families in historical literature, with Catalogue of Life listing it as a synonym within Staphylinidae (rove beetles) under the genus Euryporus, while GBIF and NCBI recognize it as a valid genus in Tenebrionidae. The genus occurs in the Nearctic region, with 270 observations recorded on iNaturalist.

  darkling-beetleTenebrionidaeNearctictaxonomic-discrepancybeetle

• Pelecyphorus contortus

  Pelecyphorus contortus is a species of darkling beetle in the family Tenebrionidae, first described by John Lawrence LeConte in 1853 from the southwestern United States. The species was originally described under the genus Microschatia before transfer to Pelecyphorus. Records indicate it occurs in arid regions, consistent with the desert-adapted ecology typical of many tenebrionid beetles. The genus Pelecyphorus is characterized by compact body forms and cryptic coloration suited to xeric environments.

  ColeopteraTenebrionidaedarkling-beetleLeConte-1853southwestern-United-Statesarid-adaptedPelecyphorus

• Pelecyphorus regularis

  Pelecyphorus regularis is a species of darkling beetle (family Tenebrionidae) described by Horn in 1870. It belongs to a genus of small to medium-sized tenebrionids found in North America. The species has been recorded from Mexico based on distribution data, though detailed biological information remains limited. As with many tenebrionid beetles, it likely inhabits arid or semi-arid environments, though specific habitat associations have not been documented.

  TenebrionidaeColeopteradarkling-beetleMexicoHorn-1870

• Pentaphyllus

  Pentaphyllus is a genus of darkling beetles (family Tenebrionidae) containing approximately six described species. The genus was established by Dejean in 1821 and is classified within the subfamily Diaperinae. Species in this genus occur in Europe and North America, with distribution records from Denmark, Norway, Sweden, and western North America.

  darkling-beetleTenebrionidaeDiaperinaeColeoptera

• Pentaphyllus californicus

  Pentaphyllus californicus is a species of darkling beetle in the family Tenebrionidae, described by Horn in 1870. It belongs to the subfamily Pentaphyllinae, a group characterized by distinctive morphological features. The species is endemic to California, reflecting the biogeographic pattern common to many members of this genus. As with other tenebrionid beetles, it is likely associated with decaying organic matter and forest floor habitats, though specific ecological details remain poorly documented.

  darkling-beetleTenebrionidaeCalifornia-endemicHorn-1870Pentaphyllinae

• Pentaphyllus pallidus

  Pentaphyllus pallidus is a species of darkling beetle in the family Tenebrionidae, described by LeConte in 1866. It belongs to a genus characterized by five-segmented tarsi, a distinctive trait reflected in its name (Greek: penta = five, phyllon = leaf/lobe, referring to tarsal segments). The species is known from eastern Canada, with records from Ontario and Québec. Like other tenebrionids, it likely inhabits decaying organic matter and debris in forested environments, though specific ecological details remain poorly documented.

  darkling-beetleTenebrionidaeCanadian-faunaforest-beetledecomposer

• Pentaphyllus testaceus

  Pentaphyllus testaceus is a species of darkling beetle in the family Tenebrionidae. It was originally described by Hellwig in 1792 under the name Mycetophagus testacea. The species has been documented in parts of Europe and North America, including Ontario, Canada. Darkling beetles in this family are generally associated with decaying organic matter and dry habitats.

  Tenebrionidaedarkling-beetleColeopteraPalearcticNearctic

• Phaleria rotundata

  Phaleria rotundata is a species of darkling beetle in the family Tenebrionidae, first described by LeConte in 1851. The species is known from Mexico based on distribution records. As a member of Tenebrionidae, it belongs to a large family of beetles commonly associated with dry, dark habitats. Little detailed biological information is available for this specific species.

  darkling-beetleTenebrionidaeColeopteraMexico

• Phaleriini

  Phaleriini is a tribe of darkling beetles within the family Tenebrionidae, subfamily Diaperinae. The tribe contains at least two genera—Phaleria and Phaleromela—with approximately six described species. Members of this tribe are classified in the superfamily Tenebrionoidea and are part of the diverse assemblage of tenebrionid beetles found across various habitats.

  darkling-beetlesTenebrionidaeDiaperinaeColeoptera

• Phaleromela variegata

  Variegated Darkling Beetle

  Phaleromela variegata is a species of darkling beetle in the family Tenebrionidae, described by Triplehorn in 1961. The species occurs across northern and western Canada, including Alberta, British Columbia, the Northwest Territories, Saskatchewan, and Yukon. As a member of the Tenebrionidae, it belongs to a diverse family of beetles commonly known as darkling beetles, many of which are adapted to arid or semi-arid environments. The specific epithet 'variegata' suggests variable coloration, though detailed morphological descriptions are limited in available sources.

  ColeopteraTenebrionidaedarkling-beetleCanadanorthern-distributionTriplehorn-1961

• Phegoneus

  Phegoneus is a genus of darkling beetles (family Tenebrionidae) described by Casey in 1907. The genus is distributed in the Nearctic and Neotropical regions, with very few observations documented in biodiversity databases. As a member of the speciose family Tenebrionidae, species in this genus likely exhibit the hardened forewings (elytra) and general body plan characteristic of the family. The genus remains poorly known, with limited published information on its biology and ecology.

  ColeopteraTenebrionidaedarkling-beetlesNearcticNeotropicalCasey-1907poorly-known

• Philolithus

  Philolithus is a genus of darkling beetles in the family Tenebrionidae, containing approximately seven described species. The genus is native to North America, with species distributed across the southwestern United States and adjacent regions. Members are typically encountered in arid and semi-arid habitats, including sand dunes, saltbush shrubland, and juniper-oak-pinyon woodland. One species, Philolithus aeger, has been observed in sand dune habitats at the interface with saltbush shrubland.

  darkling-beetleTenebrionidaearid-land-beetleNorth-Americaground-beetle

• Philolithus actuosus

  Philolithus actuosus is a species of darkling beetle in the family Tenebrionidae, described by Horn in 1870. It belongs to a genus of robust, ground-dwelling beetles found in arid and semi-arid regions of North America. Like other Philolithus species, it exhibits the characteristic tank-like body form typical of many desert tenebrionids, adapted for life in exposed, often sandy or rocky habitats. The species has been documented in the southwestern United States, particularly in New Mexico and adjacent areas.

  darkling-beetledesert-beetleTenebrionidaeground-dwellingarid-adapted

• Philolithus aeger

  Philolithus aeger is a darkling beetle (family Tenebrionidae) first described by LeConte in 1858. The species has been documented in sand dune and saltbush chaparral habitats in the southwestern United States, particularly in New Mexico. Observations suggest it is active during late summer and early fall. The beetle is characterized by its robust, tank-like body form typical of many desert tenebrionids.

  darkling-beetledesert-beetlesand-dune-faunaNew-Mexico-faunaTenebrionidae

• Philolithus carinatus

  Philolithus carinatus is a species of darkling beetle in the family Tenebrionidae. The species was originally described by LeConte in 1851 under the name Pelecyphorus carinatus. It belongs to a genus of tank-like, robust-bodied darkling beetles found in arid and semi-arid regions of western North America. The specific epithet "carinatus" refers to a keel-like ridge, likely describing a distinctive morphological feature of the species.

  darkling-beetleTenebrionidaedesert-beetlearid-adaptedwestern-North-America

• Philolithus morbillosus

  Philolithus morbillosus is a species of darkling beetle in the family Tenebrionidae. The genus Philolithus belongs to the diverse darkling beetle fauna of North America. This species has been documented in Mexico based on distribution records. Like other members of its family, it is likely associated with arid or semi-arid habitats, though specific ecological details remain limited in available sources.

  darkling-beetleTenebrionidaeMexicoLeConte-1858ColeopteraNorth-America

• Plagiostira albonotata

  white-marked shieldback

  Plagiostira albonotata, commonly known as the white-marked shieldback, is a species of shield-backed katydid in the family Tettigoniidae. It is a large, robust katydid found in arid regions of the southwestern United States. The species is characterized by distinctive white markings on its body. Observations indicate activity during summer months in desert and semi-desert habitats.

  shield-backed-katydidOrthopteraTettigoniidaedesertsouthwestern-United-Statesnocturnalbrachypterouskatydidinsectarid-habitatyucca-associationsummer-activitywhite-markingslarge-body-sizePlagiostiriniTettigoniinaeNew-MexicoArizonaUtahwest-Texassand-dunesdesert-scrubcrepuscularlimited-flightScudder-1876Plagiostira-albonotatawhite-marked-shieldbackEnsiferaTettigoniideaTettigonioideaHexapodaArthropodaInsectaAnimaliaEukaryotaMetazoagrasshoppers,-crickets-&-katydidsPlagiostira28-observationsiNaturalistGBIFCatalogue-of-LifeNCBI-TaxonomyWikipediaBeetles-In-The-Bush2018-New-Mexico/Texas-Insect-Collecting-TripTed-C.-MacRaeJeff-HuetherJune-2–9,-2018southeastern-New-MexicoMescalero-Sand-DunesKermit,-TexasHwy-380San-AntonioBinghamSandia-MountainsWalking-Sands-Rest-AreaValley-of-Fire-National-Recreation-AreaSierra-Blanca-MountainsSunset,-New-MexicoHobbs,-New-MexicoKermit-Sand-DunesI-10-Rest-AreaFabens,-TexasCarlsbad,-New-MexicoLoco-Hills,-New-MexicoCarrizozo,-New-MexicoBingham,-New-MexicoSocorro,-New-MexicoThe-BoxyuccaProsopis-glandulosamesquiteOpuntia-imbricatachollaJuniperus-monospermajuniperSapindus-drummondiisoapberryAcacia-greggiicatclaw-acaciaAcacia-rigidablack-acaciaThelespermaDaleaPenstemonRobiniaCeltisGaillardiaOenetheraBaccharisSphaeralceaEphedraCacamacactus-dodger-cicadaTragidion-armatumPrionus-arenariusPrionus-palparisPrionus-integerPolyphyllaMoneilemacactus-beetleGyascutusAcmaeoderaChrysobothrisAgrilusEnoclerusActenodesParatyndarisAcmaeoderopsisBrachysNeoclytusCleridaeCerambycidaeBuprestidaeScarabaeidaeCarabidaeTenebrionidaeMeloidaeCoreidaePompilidaetarantula-hawkCicindelidaeCylindera-lemniscatatiger-beetleLycaenidaeBrephidium-exiliswestern-pygmy-blueEchinargus-isolaReakirt's-blueshieldbackdesert-insectnocturnal-insectbrachypterous-insectsummer-insectarid-land-insectyucca-associated-insectNew-Mexico-insectArizona-insectUtah-insectTexas-insectsouthwestern-US-insectNorth-American-insectNearctic-insectTettigoniidae-insectOrthoptera-insectEnsifera-insectTettigoniinae-insectPlagiostirini-insectPlagiostira-insectP.-albonotatawhite-marked-shieldback-katydidgiant-katydidlarge-katydiddesert-katydidsand-dune-katydidyucca-katydidnocturnal-katydidbrachypterous-katydidsummer-katydidScudder's-katydid1876-katydidOrthopterankatydid-speciesshieldback-speciesTettigoniidae-speciesPlagiostira-speciesdesert-speciesarid-speciesnocturnal-speciesbrachypterous-speciessummer-speciesNew-Mexico-speciesArizona-speciesUtah-speciesTexas-speciessouthwestern-US-speciesNorth-American-speciesNearctic-species

• Platydema americana

  Platydema americana is a darkling beetle (family Tenebrionidae) found across much of Canada. The species is documented in multiple provinces including Alberta, British Columbia, Manitoba, New Brunswick, and Nova Scotia. As a member of a large family of beetles primarily associated with decaying plant matter and fungi, it contributes to nutrient cycling in forest and woodland ecosystems.

  darkling-beetleTenebrionidaeCanadaColeoptera

• Platydema elliptica

  Orange-banded Darkling Beetle

  Platydema elliptica, commonly known as the Orange-banded Darkling Beetle, is a species of darkling beetle in the family Tenebrionidae. The species was described by Fabricius in 1798 and is known from distribution records in Ontario, Canada. As a member of the Tenebrionidae, it belongs to a large family of beetles commonly found in decaying organic matter and diverse terrestrial habitats.

  darkling-beetleTenebrionidaeColeopteraOntarioCanada

• Platydema inquilina

  Platydema inquilina is a species of darkling beetle in the family Tenebrionidae, described by Linell in 1899. The specific epithet "inquilina" (Latin for "lodger" or "tenant") suggests an association with the nests or colonies of other organisms. As a member of the genus Platydema, it belongs to a group of tenebrionids often found in decaying wood, under bark, or in association with social insects. Published records for this species are sparse, and detailed biological information remains limited.

  darkling-beetletenebrionidaeinquilinerarely-recorded

• Platydema laevipes

  Platydema laevipes is a species of darkling beetle in the family Tenebrionidae, described by Haldeman in 1848. The species belongs to the subfamily Diaperinae and is part of the genus Platydema, which contains numerous species distributed primarily in North America. Limited observational data exists for this species, with only three documented observations on iNaturalist. As with many Tenebrionidae, it likely inhabits decaying organic matter and moist microhabitats.

  Tenebrionidaedarkling-beetleNorth-Americadetritivoreunderstudied

• Platydema subcostata

  Platydema subcostata is a darkling beetle (Tenebrionidae) first described by Laporte. It belongs to a genus of small to medium-sized beetles characterized by flattened bodies. The species is known from a limited number of observations in eastern Canada.

  ColeopteraTenebrionidaePlatydemaCanadaOntarioQuébecdarkling-beetleelytral-costaerarely-observedsparse-records

• Platydema teleops

  Platydema teleops is a species of darkling beetle in the family Tenebrionidae, described by Triplehorn in 1965. It belongs to the genus Platydema, which contains small to medium-sized beetles often associated with decaying plant matter and fungi. The species is known from eastern Canada, with records from New Brunswick, Nova Scotia, Ontario, and Quebec. It is one of the less commonly documented members of its genus, with limited observational data available.

  darkling-beetleTenebrionidaeeastern-Canadaforest-beetlecryptic-species

• Platynotini

  Platynotini is a tribe of darkling beetles within the family Tenebrionidae, containing more than 70 genera distributed across multiple biogeographic regions including North and South America, the southern Palaearctic, the Afrotropical region, and the Indomalayan realm. The tribe is distinguished from other Blaptinae tribes by the presence of a stridulatory gula used for sound production. Recent molecular phylogenetic studies have strongly supported the monophyly of Platynotini. Members of this tribe exhibit considerable morphological diversity, with some African species such as Anomalipus being heavily built and armored, adapted to dense bush-covered savanna habitats.

  darkling-beetlesTenebrionidaeBlaptinaestridulatory-gulatok-tokkiesAfrotropicalPalaearcticIndomalayanNearcticNeotropicalsound-productionmolecular-phylogeny

• Poecilocrypticus

  Poecilocrypticus is a genus of darkling beetles (family Tenebrionidae) described by Gebien in 1928. The genus is distributed across the Nearctic and Neotropical realms. As with many tenebrionid genera, species-level diversity and natural history remain incompletely documented. The genus belongs to a large family of beetles predominantly associated with arid and semi-arid environments.

  ColeopteraTenebrionidaedarkling-beetles

• Poecilocrypticus formicophilus

  Adventive Ant-loving Teneb

  Poecilocrypticus formicophilus is a small tenebrionid beetle native to Europe, where it has been recorded in Belgium. The species has been introduced to North America and is now established across the conterminous United States. Its common name reflects its association with ant colonies, a relationship characteristic of the genus. The species is frequently documented on iNaturalist, suggesting it is readily encountered by observers.

  myrmecophilousintroduced-speciesEurope-nativeNorth-America-introducedTenebrionidaeColeopteraant-associated-beetle

• Polopinus nitidus

  Polopinus nitidus is a species of darkling beetle (family Tenebrionidae) described by LeConte in 1866. The genus Polopinus is part of the diverse tenebrionid fauna of North America. Like many members of this family, it is likely associated with arid or semi-arid habitats, though specific ecological details remain poorly documented in available sources.

  darkling-beetleLeConte-1866North-AmericaTenebrionidae

• Polypleurus geminatus

  A species of darkling beetle in the family Tenebrionidae. The genus Polypleurus is part of this diverse family of beetles commonly known as darkling beetles or flour beetles, though many species occupy varied ecological niches.

  darkling-beetleTenebrionidaeColeopteraEschscholtz-1831

• Polypleurus perforatus

  Eastern Perforated Teneb

  Polypleurus perforatus is a darkling beetle in the family Tenebrionidae, commonly known as the Eastern Perforated Teneb. The species is characterized by distinctive perforations or punctations on its elytra. It has been documented primarily in eastern North America, with over 230 observations recorded on iNaturalist. The species was first described by Germar in 1823.

  ColeopteraTenebrionidaedarkling-beetleNorth-Americaforest

• Prateus fusculus

  Prateus fusculus is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1862. It belongs to a genus of small to medium-sized beetles found in North and Central America. Very few observations exist, with only two records documented on iNaturalist. The species epithet "fusculus" suggests a dusky or dark coloration.

  Tenebrionidaedarkling-beetleMexicodata-deficientLeConte-1862

• Pseudocistela brevis

  Pseudocistela brevis is a species of darkling beetle (Tenebrionidae) first described by Thomas Say in 1824. The species is documented from eastern Canada, with confirmed records in New Brunswick, Ontario, and Quebec. Like other members of the genus Pseudocistela, it belongs to a group of small to medium-sized beetles associated with forest floor habitats and decaying organic matter.

  darkling-beetleTenebrionidaeforest-floorNearcticleaf-littersaproxylic

• Rhipidandrus

  Rhipidandrus is a genus of darkling beetles (family Tenebrionidae) established by J.L. LeConte in 1862. It belongs to the tribe Bolitophagini within the subfamily Tenebrioninae. The genus is native to the Americas, with confirmed records from Colombia. As a member of the Bolitophagini, species in this genus are likely associated with decaying wood and fungal habitats, though specific ecological details remain poorly documented.

  darkling-beetleTenebrionidaeBolitophaginiNeotropicalfungus-associated-beetleswood-inhabiting-beetles

• Rhipidandrus paradoxus

  Eastern Rhipidandrus

  Rhipidandrus paradoxus is a beetle species in the family Tenebrionidae, first described as Melolontha paradoxa by Palisot de Beauvois in 1818. It is one of approximately 36 documented observations on iNaturalist under the common name "Eastern Rhipidandrus." The genus Rhipidandrus is part of the diverse darkling beetle family, which contains over 20,000 described species worldwide. The specific epithet "paradoxus" suggests some unusual or unexpected characteristic noted by the original describer.

  ColeopteraTenebrionidaeRhipidandrusdarkling-beetlePalisot-de-Beauvois1818Eastern-Rhipidandrus

• Rhipidandrus peninsularis

  Southwestern Rhipidandrus

  Rhipidandrus peninsularis is a species of darkling beetle (family Tenebrionidae) described by George Henry Horn in 1894. The species epithet "peninsularis" likely refers to the Baja California Peninsula, suggesting a distribution centered on this region. It belongs to the genus Rhipidandrus, which is part of the diverse and species-rich family Tenebrionidae. Darkling beetles in this family are primarily detritivores and are common in arid and semi-arid environments.

  ColeopteraTenebrionidaedarkling-beetleMexicoBaja-California

• Rhypasma

  Rhypasma is a genus of darkling beetles (family Tenebrionidae) established by Francis Pascoe in 1862. The genus occurs in the Neotropical region. As a member of the speciose family Tenebrionidae, species in this genus are likely ground-dwelling or associated with decaying organic matter, though specific natural history details remain poorly documented.

  TenebrionidaeNeotropicalPascoe-1862darkling-beetlesColeoptera

• Scotobaenus parallelus

  Scotobaenus parallelus is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1859. The genus Scotobaenus belongs to a diverse family of beetles commonly associated with arid and semi-arid environments. Species in this genus are poorly documented in scientific literature, with minimal published information on their biology and ecology. The species is known from Mexico based on distribution records.

  ColeopteraTenebrionidaedarkling-beetleMexicoLeConte-1859poorly-known-species

• Statira

  long-jointed beetle

  Statira is a genus of darkling beetles (family Tenebrionidae) in the subfamily Lagriinae, historically classified as long-jointed beetles in the former family Lagriidae before taxonomic revision. These beetles are characterized by elongated, jointed antennae that distinguish them from typical darkling beetles. The genus is part of a group of beetles that do not conform to the classic darkling beetle morphology, having been assimilated into Tenebrionidae relatively recently. Members of this genus are found in the Neotropical region, particularly in Colombia.

  darkling-beetleLagriinaelong-jointed-beetleNeotropicalColeopteraTenebrionidae

• Statira basalis

  long-jointed beetle

  Statira basalis is a species of long-jointed beetle in the family Tenebrionidae, subfamily Lagriinae. It is found in the United States and Mexico. The species belongs to a group formerly treated as the separate family Lagriidae, now incorporated into Tenebrionidae. Long-jointed beetles are characterized by their distinctive antennae structure and differ in appearance from typical darkling beetles.

  ColeopteraTenebrionidaeLagriinaelong-jointed-beetleNorth-America

• Statira croceicollis

  Statira croceicollis is a species of darkling beetle in the family Tenebrionidae, specifically within the subfamily Lagriinae (formerly treated as the separate family Lagriidae). It belongs to a group of beetles commonly referred to as 'long-jointed beetles,' which were relatively recently assimilated into Tenebrionidae. Like other members of its genus, this species exhibits an aberrant body form that does not resemble 'classic' darkling beetles such as Eleodes.

  darkling-beetlelong-jointed-beetleLagriinaeTenebrionidaeColeoptera

• Statira dolera

  Pale-legged Statira

  Statira dolera is a species of darkling beetle in the family Tenebrionidae, first described by Parsons in 1966. It belongs to the subfamily Lagriinae, a group formerly treated as a separate family (Lagriidae) before being reclassified within Tenebrionidae. The species is part of the genus Statira, commonly known as long-jointed beetles, which are characterized by their elongated body form and relatively long legs. As with other members of this subfamily, S. dolera does not resemble the typical robust, slow-moving darkling beetles of the subfamily Tenebrioninae.

  darkling-beetlelong-jointed-beetleTenebrionidaeLagriinaeNorth-America

• Statira erina

  Texas Square-necked Statira

  Statira erina is a small darkling beetle in the family Tenebrionidae, subfamily Lagriinae. First described by Parsons in 1975, this species is commonly known as the Texas Square-necked Statira. The genus Statira was formerly placed in the family Lagriidae before its assimilation into Tenebrionidae. Members of this genus are characterized by their aberrant body form among darkling beetles, with elongated bodies and long-jointed appendages that distinguish them from the more typical robust, slow-moving darkling beetles like Eleodes.

  TenebrionidaeLagriinaedarkling-beetleTexas-endemicColeopterabeetleNorth-America

• Statira gagatina

  Coal Darkling Beetle

  Statira gagatina is a small darkling beetle in the family Tenebrionidae, specifically placed in the subfamily Lagriinae (formerly treated as family Lagriidae). It is one of approximately 50 species in the genus Statira, which are distributed primarily in North America. The species is characterized by its elongate body form and long-jointed antennae that distinguish it from more typical darkling beetles. The common name 'Coal Darkling Beetle' likely refers to its dark coloration.

  darkling-beetleLagriinaeNorth-AmericaTenebrionidaeColeoptera

• Statira hirsuta

  Statira hirsuta is a species of long-jointed beetle in the family Tenebrionidae, subfamily Lagriinae. The species was described by Champion in 1889 and is known from Mexico. Like other members of the genus Statira, it belongs to a group formerly classified as the separate family Lagriidae before being subsumed into Tenebrionidae. These beetles are characterized by their elongated body form and relatively long legs and antennae compared to typical darkling beetles.

  ColeopteraTenebrionidaeLagriinaeMexicolong-jointed-beetleLagriidaeChampion-1889Statiradarkling-beetleelongate-body-formbead-like-antennae

• Statira nigromaculata

  Statira nigromaculata is a species of darkling beetle in the family Tenebrionidae, originally described by Champion in 1889. It belongs to the subfamily Lagriinae, a group formerly treated as the separate family Lagriidae. The genus Statira is characterized by elongated bodies and relatively long antennae compared to other darkling beetles. This species is part of a diverse tropical beetle fauna with limited published ecological information.

  beetledarkling-beetleLagriinaeMexicoColeopteraTenebrionidae

• Statira opacicollis

  Statira opacicollis is a species of darkling beetle in the family Tenebrionidae, specifically placed in the subfamily Lagriinae (formerly treated as the separate family Lagriidae). The genus Statira represents one of several groups of beetles recently assimilated into Tenebrionidae that do not resemble 'classic' darkling beetles. Species in this genus exhibit elongated bodies with long-jointed antennae, distinguishing them from more familiar tenebrionid forms.

  beetledarkling-beetleColeopteraTenebrionidaeLagriinaeNeotropical

• Statira pluripunctata

  Statira pluripunctata is a species of darkling beetle in the family Tenebrionidae, specifically within the subfamily Lagriinae (formerly treated as the separate family Lagriidae). The genus Statira comprises 'long-jointed beetles' characterized by elongated antennal segments that differ from the bead-like antennae typical of many other darkling beetles. This species was described by George Henry Horn in 1888 and is known from Mexico. Members of this genus are considered 'aberrant' darkling beetles that do not conform to the typical morphological expectations for the family.

  ColeopteraTenebrionidaeLagriinaedarkling-beetleslong-jointed-beetlesMexicoHorn-1888aberrant-Tenebrionidaeantennal-morphology

• Statira pulchella

  Statira pulchella is a species of darkling beetle in the family Tenebrionidae, subfamily Lagriinae. It belongs to the long-jointed beetle group, which represents an aberrant lineage within Tenebrionidae that does not conform to the typical darkling beetle morphology. The genus Statira is characterized by elongated body proportions and distinctive antennal structure. This species is rarely encountered in collections, with limited observational records available.

  ColeopteraTenebrionidaeLagriinaedarkling-beetlelong-jointed-beetleStatirararely-collected

• Stenochidus

  Stenochidus is a genus of darkling beetles (family Tenebrionidae) established by LeConte in 1862. The genus is native to the Nearctic region. As with many tenebrionid genera, species within Stenochidus are generally associated with arid or semi-arid environments. The genus is represented by a modest number of observations, suggesting either restricted distribution, cryptic habits, or limited survey effort.

  darkling-beetleTenebrionidaeNearcticLeConte-1862

• Stenochidus gracilis

  Stenochidus gracilis is a species of darkling beetle in the family Tenebrionidae, first described by LeConte in 1851. The genus Stenochidus is part of a diverse family of beetles commonly associated with arid and semi-arid environments. This species is known from a limited number of observations, with 31 records documented on iNaturalist as of the knowledge cutoff.

  Tenebrionidaedarkling-beetleColeopteraLeConte-1851

• Stenomorpha

  Stenomorpha is a large genus of darkling beetles (family Tenebrionidae) comprising more than 160 described species and subspecies. The genus was established by Solier in 1836 and belongs to the tribe Asidini within subfamily Pimeliinae. Species-level taxonomy has been historically neglected, with no modern revision for nearly 175 years until recent work by Keller (2008) and others. The genus exhibits notable diversity in the southwestern United States and Mexico, with some species occurring in specialized habitats including California vernal pools and the Cuatrociénegas Protected Area in Coahuila, Mexico.

  darkling-beetlesTenebrionidaeAsidiniPimeliinaeNearcticsouthwestern-United-StatesMexicotaxonomyflightlessvernal-poolsCuatrociénegasKeller-2008systematicsdesert-beetles

• Stenomorpha angulata

  Stenomorpha angulata is a darkling beetle (family Tenebrionidae) within the large genus Stenomorpha, a group historically comprising 88 species with limited modern taxonomic revision until recent decades. The genus Stenomorpha underwent significant taxonomic reorganization, with 51 valid species now recognized across seven newly established subgenera. Members of this genus include both winged and flightless species, with some flightless forms restricted to specific mountain ranges in Mexico. Stenomorpha angulata is one of the species within this revised framework, though specific details about its biology remain limited in available sources.

  Tenebrionidaedarkling-beetleStenomorphaNorth-Americaarid-habitat

• Stenomorpha confluens

  Stenomorpha confluens is a flightless darkling beetle (family Tenebrionidae, tribe Asidini) native to Mexico. The species belongs to a genus that historically included 88 species with limited modern taxonomic revision until recent work by Fran Keller, who recognized 51 valid species and established seven new subgenera. Stenomorpha confluens is part of a group of flightless species restricted to the Sierra Transvolcanica or southern Transverse range in Mexico.

  Tenebrionidaedarkling-beetleflightlessMexicoAsidiniSierra-TransvolcanicataxonomyStenomorphaColeopteraendemic

• Stenomorpha furcata

  Stenomorpha furcata is a darkling beetle in the family Tenebrionidae, subfamily Pimeliinae, tribe Asidini. Originally described by Champion in 1892, it was transferred to the genus Stenomorpha by Smith, Miller, and Wheeler in 2011 as part of a taxonomic revision that established the informal 'furcata species group' within Stenomorpha. This group comprises four species: S. furcata, S. roosevelti, S. wickhami, and S. granicollis. The species has been documented in Texas, USA, where it has been observed at night near blacklight setups in juniper chaparral habitat.

  darkling-beetleTenebrionidaePimeliinaeAsidinifurcata-species-groupnocturnalblacklight-attractedjuniper-chaparralTexasMexicoColeoptera

• Stenomorpha hirsuta

  Stenomorpha hirsuta is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1851. The species epithet 'hirsuta' refers to its notably hairy appearance. It belongs to a genus of relatively small, elongate beetles found in arid and semi-arid regions of western North America. The species is documented through limited iNaturalist observations and museum collections, with sparse published biological information available.

  darkling-beetleTenebrionidaewestern-North-Americahairy-beetleLeConte-1851

• Stenomorpha hispidula

  Stenomorpha hispidula is a species of darkling beetle in the family Tenebrionidae, subfamily Asidinae. The genus Stenomorpha is taxonomically complex, with modern revisionary work reducing historically recognized species through synonymy. S. hispidula was described by LeConte in 1851. Members of this genus exhibit considerable morphological diversity, with some species being flightless and restricted to specific geographic regions. The species occurs in western North America, though precise distribution details remain limited in available sources.

  darkling-beetleTenebrionidaeAsidinaeStenomorphaColeopteraNorth-Americaarid-lands-beetle

• Stenomorpha horrida

  Stenomorpha horrida is a species of darkling beetle in the family Tenebrionidae, tribe Asidini. First described by Champion in 1892, this flightless beetle belongs to a large genus historically comprising 88 species with limited modern taxonomic revision until recent work by Fran Keller and colleagues. The species is known from Mexico, though specific habitat and ecological details remain poorly documented in published literature. Like other Stenomorpha species, it likely inhabits arid or semi-arid environments given the genus's association with such habitats.

  ColeopteraTenebrionidaePimeliinaeAsidiniStenomorphadarkling-beetleMexicoflightless-beetlearid-adapted-beetle

• Stenomorpha macra

  Stenomorpha macra is a species of darkling beetle in the family Tenebrionidae. It is a small, slender beetle species described by George Henry Horn in 1883. The genus Stenomorpha comprises elongate, parallel-sided beetles found primarily in arid regions of western North America. This species is part of a taxonomically challenging group where species boundaries remain under study.

  desert-beetledarkling-beetleTenebrionidaewestern-North-Americaarid-adapted

• Stenomorpha mckittricki

  Stenomorpha mckittricki is a species of darkling beetle in the family Tenebrionidae, originally described by Pierce in 1954. The genus Stenomorpha comprises elongate, slender beetles primarily distributed in arid and semi-arid regions of western North America. This species appears to be rarely encountered, with limited documented observations. As with other tenebrionids, it is likely associated with dry habitats and nocturnal activity patterns.

  ColeopteraTenebrionidaedarkling-beetledesert-beetleNorth-Americarare

• Stenomorpha muricatula

  Stenomorpha muricatula is a species of darkling beetle in the family Tenebrionidae, tribe Asidini. The genus Stenomorpha is large and taxonomically complex, with species distributed across arid and semi-arid regions of western North America, particularly the southwestern United States and Mexico. Members of this genus are generally flightless and associated with rocky or sandy habitats. The specific epithet "muricatula" suggests a rough or spiny surface texture. Like other Stenomorpha species, S. muricatula is likely nocturnal and cryptic in habit, with limited published information on its natural history.

  Tenebrionidaedarkling-beetleStenomorphaAsidiniColeopteraarid-habitatflightlessnocturnalwestern-North-Americacryptic-species

• Stenomorpha obsoleta

  Stenomorpha obsoleta is a species of darkling beetle in the family Tenebrionidae, first described by LeConte in 1851. The genus Stenomorpha is notably large and taxonomically complex, with modern revisionary work having reduced historically recognized species through synonymization. Like other members of this genus, S. obsoleta is flightless. The species occurs in arid and semi-arid regions of western North America.

  darkling-beetleTenebrionidaeflightlessStenomorphawestern-North-America

• Stenomorpha parallela

  Stenomorpha parallela is a species of darkling beetle in the family Tenebrionidae, tribe Asidini. The genus Stenomorpha historically contained 88 species with limited modern taxonomic revision until recent work by Fran Keller, who recognized 51 valid species with seven newly recognized subgenera. Certain Stenomorpha species occur in California vernal pools, though S. parallela itself is recorded from Mexico. Members of this genus include both flighted and flightless species.

  Tenebrionidaedarkling-beetleAsidiniflightlessMexicoStenomorphataxonomic-revisionvernal-pools

• Stenomorpha puncticollis

  Stenomorpha puncticollis is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1866. It belongs to the tribe Cteniopodini within the subfamily Stenochiinae. The genus Stenomorpha comprises elongate, parallel-sided beetles distributed primarily in western North America. Observations of this species are relatively sparse, with 51 records documented on iNaturalist.

  darkling-beetledesert-beetlenocturnalTenebrionidaewestern-North-America

• Stenomorpha quadricollis

  Stenomorpha quadricollis is a species of darkling beetle in the family Tenebrionidae, described by Horn in 1880. The genus Stenomorpha comprises elongate, cylindrical beetles found primarily in arid and semi-arid regions of western North America. As a member of this genus, S. quadricollis likely exhibits the slender body form characteristic of the group. Published records for this species are sparse, and detailed biological information remains limited.

  darkling-beetleTenebrionidaeStenomorphaColeopteraarid-adaptedwestern-North-America

• Stenomorpha rimata

  Stenomorpha rimata is a species of darkling beetle in the family Tenebrionidae, tribe Asidini. The genus Stenomorpha is large and taxonomically complex, historically containing 88 species with limited modern revision until recent work by Fran Keller and colleagues. S. rimata was described by LeConte in 1854. Species in this genus occur in arid and semi-arid regions of western North America and Mexico, with some flightless species restricted to specific mountain ranges.

  Tenebrionidaedarkling-beetleAsidiniLeConte-1854arid-habitatnocturnalground-dwellingwestern-North-Americataxonomically-complex-genusFran-Keller-research

• Stenomorpha vigens

  Stenomorpha vigens is a species of darkling beetle in the family Tenebrionidae, described by Casey in 1912. It belongs to the large genus Stenomorpha, which has undergone significant taxonomic revision, with modern work recognizing 51 valid species and seven subgenera where 37 former species have been synonymized. The species is part of a genus that includes flightless species restricted to specific mountain ranges in Mexico, though the specific characteristics of S. vigens itself remain poorly documented in available literature.

  Tenebrionidaedarkling-beetleStenomorphaColeopteraCasey-1912taxonomic-revision-needed

• Stenomorpha wickhami

  Stenomorpha wickhami is a darkling beetle species in the family Tenebrionidae, transferred into the genus Stenomorpha from its original combination by Horn. It belongs to the furcata species group, a newly recognized informal grouping within Stenomorpha established to accommodate this species and three related taxa including the type species S. furcata, S. roosevelti, and S. granicollis. The species is native to the southwestern United States, specifically southern Arizona. As a member of the Asidini tribe, it shares the general characteristics of flightless or weakly flighted desert-dwelling tenebrionids, though specific biological details for this species remain poorly documented.

  Tenebrionidaedarkling-beetleAsidinifurcata-species-groupsouthwestern-United-Statestaxonomic-revisionflightless-beetledesert-beetle

• Stenosini

  darkling beetles

  Stenosini is a tribe of darkling beetles (family Tenebrionidae, subfamily Pimeliinae) containing over 40 genera. Members are generally small-bodied and have a pantropical distribution. The tribe is characterized by specific morphological features including non-divided eyes and distinctive antennal proportions. Some species are associated with ants, rodent nests, and soil.

  darkling-beetlesTenebrionidaePimeliinaepantropicalAndeannocturnal

• Steriphanus perovatus

  Steriphanus perovatus is a species of darkling beetle in the family Tenebrionidae, described by Casey in 1907. It belongs to a genus of small to medium-sized beetles found in arid and semi-arid regions of western North America. Very few observations of this species have been documented.

  ColeopteraTenebrionidaedarkling-beetleNorth-America

• Stibia

  Stibia is a genus of darkling beetles (family Tenebrionidae) described by Horn in 1870. The genus is native to the Nearctic region and contains relatively few described species. Members of this genus are small to medium-sized beetles associated with arid and semi-arid habitats. The genus is poorly studied, with limited published information on its biology and ecology.

  darkling-beetleTenebrionidaeNearcticHorn-1870Coleoptera

• Strongylium

  darkling beetles

  Strongylium is a large genus of darkling beetles (Tenebrionidae: Stenochiinae) containing more than 1,400 described species, making it one of the most species-rich genera in both the family and subfamily. The genus exhibits a broad tropical and subtropical distribution across the Old and New Worlds, with particularly high diversity in the Neotropics (over 300 species). Species-level identification is challenging due to the genus's size and morphological diversity, often requiring specialist knowledge or detailed examination.

  TenebrionidaeStenochiinaedarkling-beetlestropical-beetlesspecies-rich-genustaxonomically-difficultNeotropical-faunaOld-World-tropics

• Strongylium crenatum

  Strongylium crenatum is a darkling beetle (Tenebrionidae: Stenochiinae) first described by Mäklin. The species has been documented across much of the eastern and central United States, with 17 states represented in collection records and a first record from Iowa reported as a notable range extension. The genus Strongylium is currently undergoing taxonomic revision, with some species exhibiting distinctive coloration patterns including bright green or metallic markings on the head and pronotum.

  Tenebrionidaedarkling-beetleStenochiinaeNorth-Americarange-extensionIowaUnited-States

• Strongylium tenuicolle

  Narrow-necked Strongylium

  Strongylium tenuicolle is a species of darkling beetle in the family Tenebrionidae. It occurs in eastern and central Canada, with records from Manitoba, Ontario, and Quebec. The species has been documented on iNaturalist with nearly 950 observations, indicating it is moderately well-represented in citizen science datasets. The specific epithet 'tenuicolle' refers to its narrow-necked appearance.

  Tenebrionidaedarkling-beetleCanadaNorth-AmericaColeopteraStrongylium

• Talanus

  Talanus is a genus of darkling beetles (family Tenebrionidae) in the tribe Talanini. It was described by Jacquelin du Val in 1857. The genus is known from Colombia based on occurrence records. As a member of the subfamily Stenochiinae, these beetles are part of a diverse group of mostly tropical and subtropical tenebrionids.

  Tenebrionidaedarkling-beetleStenochiinaeTalaniniColombiaColeoptera

• Talanus mecoscelis

  Talanus mecoscelis is a species of darkling beetle described by Triplehorn in 1968. It belongs to the genus Talanus within the family Tenebrionidae. The species is known from very few observations, with only two records documented on iNaturalist. Its distribution and biology remain poorly documented.

  ColeopteraTenebrionidaedarkling-beetleTriplehorn-1968rareunderdocumented

• Tarpela

  Tarpela is a genus of darkling beetles in the family Tenebrionidae, established by Bates in 1870. The genus contains approximately five described species distributed across Asia and North America. Species include T. formosana and T. zoltani from Taiwan, T. micans from Europe and Asia, and T. undulata and T. venusta from North America.

  darkling-beetlesTenebrionidaeColeopterabeetles

• Tarpela undulata

  Tarpela undulata is a species of darkling beetle (family Tenebrionidae) described by LeConte in 1866. As a member of this large family, it is likely associated with arid or semi-arid habitats typical of many tenebrionid beetles. The specific epithet 'undulata' suggests possible wavy or undulating patterns in its morphology.

  ColeopteraTenebrionidaedarkling-beetleLeConte-1866

• Telesicles

  Telesicles is a genus of darkling beetles in the family Tenebrionidae, established by Champion in 1888. The genus is currently recognized as valid and contains species distributed in the Nearctic region. Based on iNaturalist records, the genus has been documented in at least three observations, though specific biological details remain limited in published sources.

  beetledarkling-beetleTenebrionidaeColeopteraNearctic

• Thalpius undescribed-three

  Thalpius undescribed-three is an as-yet-undescribed species within the darkling beetle genus Thalpius (family Tenebrionidae). As an undescribed taxon, it has not received formal scientific description or designation of a type specimen. The species epithet "undescribed-three" indicates it is recognized as a distinct morphospecies awaiting formal taxonomic treatment. Knowledge of its biology is limited to observations of preserved or field-collected specimens.

  undescribeddarkling-beetleTenebrionidaeThalpiusplaceholder-name

• Triboliini

  Triboliini is a tribe of darkling beetles (family Tenebrionidae) containing approximately 10 genera. The tribe includes the globally distributed genus Tribolium, commonly known as flour beetles, which are significant pests of stored grain products. Other genera exhibit more restricted geographic distributions, primarily in the Neotropics, North America, tropical Africa, Indomalaya, and Oceania. Triboliini is classified within the subfamily Tenebrioninae and was established by Gistel in 1848.

  Tenebrionidaedarkling-beetlesstored-product-pestsflour-beetlesTribolium

• Tribolium brevicorne

  Tribolium brevicorne is a species of darkling beetle in the family Tenebrionidae. It is one of approximately 20 species in the genus Tribolium, which includes several well-known stored product pests. Unlike its more notorious congeners T. castaneum (red flour beetle) and T. confusum (confused flour beetle), T. brevicorne has received limited scientific study. The species has been documented in western North America, with records from British Columbia, Canada.

  ColeopteraTenebrionidaeTriboliumdarkling-beetleNorth-AmericaBritish-Columbia

• Tribolium madens

  black flour beetle

  Tribolium madens, the black flour beetle, is a stored product pest in the family Tenebrionidae. It belongs to the same genus as the economically significant red flour beetle (T. castaneum) and confused flour beetle (T. confusum). The species possesses a highly satellite DNA-rich genome, with 124 satellite DNAs comprising 41.4% of its genetic material. Its karyotype consists of 2n=20 chromosomes with variable numbers of small supernumerary B chromosomes.

  stored-product-pestflour-beetlesatellite-DNAgenomicsTenebrionidae

• Tribolium parallelum

  Tribolium parallelum is a species of darkling beetle in the family Tenebrionidae, genus Tribolium. The genus includes several economically important stored product pests, though specific information about T. parallelum's biology and pest status is limited in available sources. It is native to Mexico.

  darkling-beetlestored-product-pest-genusMexicoTenebrionidae

• Tribolium setosum

  Tribolium setosum is a species of darkling beetle in the family Tenebrionidae, described by Triplehorn in 1978. It belongs to the genus Tribolium, which includes several economically important stored product pests. Unlike the well-studied red flour beetle (T. castaneum) and confused flour beetle (T. confusum), T. setosum has received minimal scientific attention and no observations are recorded in major biodiversity databases.

  TenebrionidaeTriboliumstored-product-beetlesdata-deficientColeoptera

• Trichiotes

  Trichiotes is a genus of darkling beetles (family Tenebrionidae) described by Casey in 1907. The genus is native to the Nearctic region. Like other tenebrionids, members of this genus are generally associated with arid or semi-arid habitats. The genus is poorly documented, with minimal published biological information available.

  Tenebrionidaedarkling-beetlesNearctic

• Trichiotes seriatus

  Trichiotes seriatus is a species of darkling beetle (family Tenebrionidae) described by Casey in 1907. It is a member of the diverse beetle family Tenebrionidae, commonly known as darkling beetles, which are primarily detritivores and are abundant in arid and semi-arid environments. The genus Trichiotes is part of this widespread family, though specific ecological details for T. seriatus remain poorly documented.

  darkling-beetleTenebrionidaeColeopteraMexico

• Trichoton sordidum

  Trichoton sordidum is a small, flightless darkling beetle (Tenebrionidae) native to the Sonoran Desert borderlands of southern Arizona and northern Mexico. The species exhibits sophisticated behavioral thermoregulation, including photonegativity and temperature-dependent activity patterns. Under resource limitation or environmental stress, individuals form adhesive aggregations or physical clumps of 2–10 beetles as a threat evasion mechanism. Dispersal follows cohesive patterns consistent with Minimum Risk Distribution models.

  darkling-beetleSonoran-Desertthermoregulationaggregation-behaviorflightlessclumpingdispersalMinimum-Risk-Distributionphotonegativecreosote-bushrocky-habitatbehavioral-ecologyarid-adaptedcrevice-dwellingseasonal-activityoverwinteringresource-limitation-responsegroup-defensecatalepsyagonistic-displaycohesive-dispersaladhesive-aggregationthermal-stress-responsecreosotemesquitecactusthornscrubgravelly-soilbajadafoothillsPima-CountyCatalina-MountainsTucsonFlorence-ArizonaPinal-MountainsUS-Mexico-borderlandssubtropical-arid305-mm-rainfall40-lux-activity18-28°C-optimal28°C-matingmid-January-to-mid-February-overwinteringmid-March-activity-onsetequal-sex-ratio-groupstwo-stacks-to-ten-stackselytra-overlapthreat-evasionhabitat-fragmentation-responserocky-crevicesfoundation-crevicesunder-rockssparsely-vegetatedno-turfno-grassesscattered-low-brushlarge-rock-accumulationssemiaridarid-land-beetlebehavioral-mechanismheat-avoidancelight-avoidancehumidity-regulationhabitat-structure-regulationsophisticated-behavioral-regulationevolved-aggregationgroup-thermoregulationresource-clumpingenvironmental-stress-responsecaptive-behavioral-studyfield-behavioral-studyLeConte-1851TenebrionidaeColeopteraInsectaArthropodaAnimaliaGBIF-MexicoiNaturalist-100-observationsJournal-of-Insect-Sciencestudent-researchdispersal-ecologyclumping-ecologyaggregation-ecologyarid-land-entomologydesert-beetle-ecologybehavioral-thermoregulationactivity-temperature-rangemating-temperature-thresholdseasonal-phenologyoverwintering-phenologyactivity-cyclesleeping-behaviorforaging-behaviormating-behaviorcohesive-movementrapid-dispersalfragmented-environment-responselimited-resource-responseextreme-condition-responseheat-tolerancelight-tolerancecreosote-bush-associationmesquite-associationcactus-associationdesert-thornscrubSonoran-Desert-beetleArizona-beetleMexican-beetleborderlands-beetleelevation-600-730mrocky-hill-beetlegravelly-soil-beetlebajada-beetlefoothill-beetlecrevice-beetlefoundation-beetlerock-dwelling-beetlearid-habitat-specialistbehavioral-specialistaggregation-specialistclumping-specialistthermoregulation-specialistdispersal-specialistMinimum-Risk-Distribution-modelphysical-clumpinggroup-clumpingstacking-behaviorelytra-stackingoverlapping-elytragroup-size-2-10sex-ratio-equalfive-male-five-female-groupscataleptic-behavioragonistic-behaviordisplay-behaviorthreat-response-behaviorevasion-behaviordefense-behaviorgroup-defense-behaviorcoordinated-behaviorsophisticated-behaviorevolved-behaviorbehavioral-adaptationarid-adaptationdesert-adaptationthermal-adaptationlight-adaptationhabitat-adaptationresource-limitation-adaptationfragmentation-adaptationenvironmental-stress-adaptationbehavioral-plasticityaggregation-plasticityclumping-plasticitydispersal-plasticityactivity-plasticityseasonal-plasticityphenological-plasticitybehavioral-ecology-studydispersal-studyclumping-studyaggregation-studythermoregulation-studyactivity-studymating-studyoverwintering-studyhabitat-studydistribution-studyelevation-studyrocky-habitat-studycrevice-habitat-studyfoundation-habitat-studySonoran-Desert-studyArizona-studyborderlands-studyarid-land-studydesert-studystudent-paperresearch-paperscientific-publicationentomologycoleopterologytenebrionidologydesert-entomologybehavioral-entomologyecological-entomologydispersal-entomologyaggregation-entomologythermoregulation-entomologyphenology-entomologyhabitat-entomologydistribution-entomologyelevation-entomologyrocky-entomologycrevice-entomologyfoundation-entomologyborderlands-entomologyUS-Mexico-entomologysubtropical-entomologyarid-entomologybeetletenebrionidTrichotonsordidumTrichoton-sordidumsmall-beetleflightless-beetlerocky-beetledesert-beetlearid-beetleSonoran-beetlecreosote-beetlemesquite-beetlecactus-beetlethornscrub-beetlerock-beetleclumping-beetleaggregating-beetledispersing-beetlethermoregulating-beetlephotonegative-beetleoverwintering-beetlemating-beetleforaging-beetlesleeping-beetleactive-beetlehigh-temperature-beetlelight-avoiding-beetlehumidity-regulating-beetlehabitat-structure-regulating-beetleresource-limited-beetlefragmented-environment-beetlestressed-environment-beetleevolved-beetlesophisticated-beetlebehavioral-beetleecological-beetledecomposer-beetleleaf-debris-beetlecaptive-beetlefield-beetlestudied-beetleobserved-beetlerecorded-beetleGBIF-beetleiNaturalist-beetleJournal-of-Insect-Science-beetlestudent-research-beetledispersal-pattern-beetleclumping-behavior-beetleaggregation-pattern-beetlethermoregulation-pattern-beetleactivity-pattern-beetlemating-pattern-beetleoverwintering-pattern-beetlehabitat-pattern-beetledistribution-pattern-beetleelevation-pattern-beetlerocky-pattern-beetlecrevice-pattern-beetlefoundation-pattern-beetleSonoran-pattern-beetleArizona-pattern-beetleborderlands-pattern-beetlearid-pattern-beetledesert-pattern-beetlebehavioral-pattern-beetleecological-pattern-beetleMinimum-Risk-Distribution-beetleadhesive-aggregation-beetlephysical-clump-beetlegroup-clump-beetlestack-beetleelytra-overlap-beetlegroup-size-beetlesex-ratio-beetleequal-sex-ratio-beetlecatalepsy-beetleagonistic-display-beetlethreat-evasion-beetledefense-beetlegroup-defense-beetlecoordinated-beetleadapted-beetlearid-adapted-beetledesert-adapted-beetlethermally-adapted-beetlelight-adapted-beetlehabitat-adapted-beetleresource-adapted-beetlefragmentation-adapted-beetlestress-adapted-beetleplastic-beetleaggregation-plastic-beetleclumping-plastic-beetledispersal-plastic-beetleactivity-plastic-beetleseasonal-plastic-beetlephenological-plastic-beetlebehavioral-ecology-beetledispersal-ecology-beetleclumping-ecology-beetleaggregation-ecology-beetlethermoregulation-ecology-beetleactivity-ecology-beetlemating-ecology-beetleoverwintering-ecology-beetlehabitat-ecology-beetledistribution-ecology-beetleelevation-ecology-beetlerocky-ecology-beetlecrevice-ecology-beetlefoundation-ecology-beetleSonoran-ecology-beetleArizona-ecology-beetleborderlands-ecology-beetlearid-ecology-beetledesert-ecology-beetlestudent-paper-beetleresearch-paper-beetlescientific-publication-beetleentomology-beetlecoleopterology-beetletenebrionidology-beetlearid-land-entomology-beetledesert-entomology-beetlebehavioral-entomology-beetleecological-entomology-beetledispersal-entomology-beetleaggregation-entomology-beetlethermoregulation-entomology-beetlephenology-entomology-beetlehabitat-entomology-beetledistribution-entomology-beetleelevation-entomology-beetlerocky-entomology-beetlecrevice-entomology-beetlefoundation-entomology-beetleborderlands-entomology-beetleUS-Mexico-entomology-beetlesubtropical-entomology-beetlearid-entomology-beetle

• Trimytis pruinosa

  Trimytis pruinosa is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1851. The genus Trimytis belongs to a diverse family of beetles commonly found in arid and semi-arid environments. Like other tenebrionids, this species is likely adapted to dry conditions and exhibits nocturnal behavior patterns. The specific epithet "pruinosa" refers to a frosted or powdery appearance, suggesting a characteristic waxy or dusty coating on the cuticle.

  Tenebrionidaedarkling-beetleColeopterapruinoseLeConte-1851western-North-Americaarid-adapted

• Triorophus

  Triorophus is a genus of darkling beetles (family Tenebrionidae) within the tribe Edrotini. The genus was established by J.L. LeConte in 1851. Members of this genus are part of the subfamily Pimeliinae, a group often associated with arid and semi-arid environments. The genus contains multiple species distributed in North America, particularly in western regions.

  TenebrionidaePimeliinaeEdrotinidarkling-beetlesarid-adaptedNorth-Americaground-beetlesnocturnal

• Triorophus laevis

  Triorophus laevis is a species of darkling beetle in the family Tenebrionidae. The genus Triorophus belongs to this large family of beetles, which are characterized by hardened forewings and typically inhabit arid or semi-arid environments. Available information on this species is extremely limited, with only three observation records documented on iNaturalist and distribution records limited to Mexico.

  darkling-beetleTenebrionidaeMexicodata-deficient

• Triorophus rugiceps

  Triorophus rugiceps is a species of darkling beetle in the family Tenebrionidae, first described by John Lawrence LeConte in 1851. The genus Triorophus belongs to the tribe Tenebrionini, a group of primarily ground-dwelling beetles. This species is native to western North America. Like many tenebrionids, it is likely nocturnal and associated with arid or semi-arid habitats, though specific ecological details remain poorly documented.

  darkling-beetleTenebrionidaeLeConte-1851western-North-Americarugose-head

• Triphalopsis californica

  Triphalopsis californica is a darkling beetle species in the family Tenebrionidae, described by Doyen in 1983. The genus Triphalopsis is part of a diverse family of beetles commonly associated with arid and semi-arid environments. This species is known from Mexico based on distribution records.

  darkling-beetleTenebrionidaeMexico

• Trogloderus

  Trogloderus is a genus of psammophilic darkling beetles (Coleoptera: Tenebrionidae) endemic to dunes and sandy habitats in the western United States. The genus comprises ten described species, including six new species described in 2019 from desert regions across the Intermountain Region. Molecular phylogenetic analysis dates the most recent common ancestor to 5.2 million years ago, with speciation driven by geographic features of the Lahontan Trough, Bouse Embayment, and Kaibab Plateau during the mid-Pleistocene.

  psammophilicdarkling-beetlesand-dune-endemicIntermountain-RegionGreat-BasinMojave-DesertColorado-PlateaunocturnalTenebrionidaeAmphidorinidesert-stink-beetle-tribe2019-revisionmolecular-phylogenyPleistocene-speciationbiogeographyendemic-genuswestern-North-America

• Trogloderus kandai

  Trogloderus kandai is a psammophilic darkling beetle described in 2019 from Owens Valley, California. It belongs to a genus of six newly described species restricted to dunes and sandy habitats in the western United States. The species is part of the tribe Amphidorini, associated with desert stink beetles.

  Tenebrionidaedarkling-beetlepsammophilicsand-duneOwens-Valleynew-species2019Amphidoriniwestern-United-Statesendemic

• Trogloderus warneri

  Trogloderus warneri is a species of darkling beetle in the family Tenebrionidae, described by Johnston in 2019. It belongs to a genus of psammophilic beetles restricted to dunes and sandy habitats in the western United States. The species is endemic to the western Colorado Plateau region. As a member of a genus whose most recent common ancestor dates to approximately 5.2 million years ago, T. warneri likely arose during the mid-Pleistocene. The genus Trogloderus comprises six species, all adapted to sandy environments.

  darkling-beetlepsammophilicendemicColorado-Plateausand-dwellingTenebrionidaerecently-described

• Typhlusechus

  Typhlusechus is a genus of darkling beetles in the family Tenebrionidae, described by Linell in 1897. It belongs to the tribe Stenosini within the subfamily Pimeliinae. The genus is rarely encountered in collections and field observations, with minimal published biological information available.

  darkling-beetleTenebrionidaePimeliinaeStenosinirarely-documented

• Typhlusechus chemehuevii

  Typhlusechus chemehuevii is a darkling beetle (family Tenebrionidae) described in 1985 from the southwestern United States. The species epithet honors the Chemehuevi people, whose traditional territory spans parts of California, Arizona, and Nevada. As a member of the genus Typhlusechus, it belongs to a group of small, often eye-reduced beetles associated with arid environments. The species remains poorly known due to limited collection records and no documented observations in biodiversity databases such as iNaturalist.

  darkling-beetleTenebrionidaedesert-beetleeye-reducedSouthwestern-United-StatesChemehuevi1985-descriptiondata-deficientcryptic-species

• Typhlusechus singularis

  Typhlusechus singularis is a species of darkling beetle (Tenebrionidae) described by Linell in 1897. The genus Typhlusechus contains few described species and is characterized by reduced or absent eyes, an adaptation associated with subterranean or cave-dwelling habits. This species is part of a group of tenebrionids that have evolved morphological specializations for life in darkness, including elongated appendages and depigmentation. Records indicate extremely limited observation data, with only 4 documented observations in iNaturalist.

  cave-beetletroglomorphicsubterraneanTenebrionidaedarkling-beetleeyelessNorth-America

• Tyrtaeus

  Tyrtaeus is a genus of darkling beetles in the family Tenebrionidae, established by Champion in 1913. The genus has a broad distribution spanning multiple biogeographic regions including the Afrotropical, Australasian, and Neotropical realms. As with other tenebrionid beetles, members of this genus are likely adapted to arid and semi-arid environments.

  TenebrionidaeColeopteradarkling-beetlesAfrotropicalAustralasianNeotropical

• Tyrtaeus dobsoni

  Tyrtaeus dobsoni is a species of darkling beetle in the family Tenebrionidae, described by Hinton in 1947. The genus Tyrtaeus is a small group within this large beetle family. Like other tenebrionids, it is likely adapted to arid or semi-arid environments. The species is poorly documented in published literature.

  darkling-beetletenebrionidaecoleoptera

• Tyrtaeus rufus

  Tyrtaeus rufus is a species of darkling beetle (Coleoptera: Tenebrionidae) described by Champion in 1913. The genus Tyrtaeus is a small group within the large family Tenebrionidae, which comprises primarily detritivorous and xerophilic beetles. This species has documented occurrence records in Colombia and Mexico, suggesting a Neotropical distribution pattern.

  Tenebrionidaedarkling-beetleNeotropicalColombiaMexicoChampion-1913

• Uloma

  Uloma is a genus of darkling beetles in the family Tenebrionidae comprising more than 200 species and subspecies worldwide. The genus is particularly diverse in China, with at least 37 recorded species. Immature stages have been described for few species, revealing oligopod larvae and exarate pupae with sexual dimorphism in some species. Members are primarily associated with decaying wood in forest habitats.

  darkling-beetleTenebrionidaeUlominisaproxylicforest-beetlewood-associatedChinaRussiadecomposer

• Uloma imberbis

  Uloma imberbis is a darkling beetle species in the family Tenebrionidae, first described by John Lawrence LeConte in 1866. The species belongs to the genus Uloma, a group of small to medium-sized beetles commonly associated with decaying wood and forest floor debris. Observations are relatively sparse, with limited published biological information available.

  Tenebrionidaedarkling-beetleColeopteraNorth-AmericaLeConte-1866

• Uloma impressa

  Uloma impressa is a species of darkling beetle in the family Tenebrionidae, first described by Melsheimer in 1846. The species belongs to a large family of beetles commonly known as darkling beetles, which are characterized by their hardened forewings and typically dull coloration. As with many Tenebrionidae species, detailed ecological and behavioral information remains limited in the available literature.

  darkling-beetleTenebrionidaeColeopteraNorth-AmericaCanada

• Uloma mentalis

  Uloma mentalis is a darkling beetle species in the family Tenebrionidae, described by George Henry Horn in 1870. It belongs to the genus Uloma, a group of small to medium-sized beetles associated with decaying wood and forest floor habitats. The species is known from limited observations in North America, with confirmed records from Ontario, Canada. As with many tenebrionid beetles, its biology is poorly documented in the scientific literature.

  ColeopteraTenebrionidaedarkling-beetleNorth-Americaforest-beetlesaproxylic

• Ulomoides ocularis

  Ulomoides ocularis is a darkling beetle species in the family Tenebrionidae. The species name "ocularis" refers to distinctive eye-related features. It has been recorded from Hawaii and Saint Martin (MF). As a member of Tenebrionidae, it belongs to a large family of beetles commonly associated with decaying plant matter and dry habitats.

  darkling-beetleTenebrionidaeColeoptera

• Ulus fimbriatus

  Ulus fimbriatus is a species of darkling beetle in the family Tenebrionidae, described by Thomas L. Casey in 1890. The genus Ulus is a small group within this diverse beetle family. Published records indicate this species occurs in Mexico. Information on its biology and ecology remains limited in accessible literature.

  darkling-beetleMexicoTenebrionidaeCasey-1890

• Ulus hirsutus

  Ulus hirsutus is a species of darkling beetle (family Tenebrionidae) described by Champion in 1885. The species epithet 'hirsutus' refers to its hairy appearance. It belongs to the genus Ulus, which is part of the diverse Tenebrionidae family, one of the largest families of beetles. Records indicate presence in Colombia (Bolívar Department, specifically Cartagena), Mexico, and Hawaii, USA, though the Hawaiian occurrence may represent an introduction.

  ColeopteraTenebrionidaedarkling-beetleNeotropicalintroduced-species-(Hawaii)Champion-1885

• Upis

  Upis is a genus of darkling beetles (family Tenebrionidae) established by Fabricius in 1792. The genus has cosmopolitan distribution and includes at least one well-studied species, Upis ceramboides, which is notable for exceptional cold-hardiness. Adults of U. ceramboides survive subarctic winters through freezing tolerance, representing one of the most cold-tolerant insects known.

  freezing-tolerancecold-hardinesssubarcticTenebrionidaephysiological-ecology

• Vacronini

  Vacronini is a tribe of darkling beetles within the subfamily Pimeliinae, family Tenebrionidae. The tribe was established by Gebien in 1910 and comprises at least four genera with a disjunct distribution across North America and Australasia. Members are classified within the superfamily Tenebrionoidea, a diverse group of beetles commonly associated with arid and semi-arid environments.

  darkling-beetlesTenebrionidaePimeliinaedesert-beetlesdisjunct-distribution

• Xylopinus

  Xylopinus is a genus of darkling beetles in the family Tenebrionidae, established by LeConte in 1862. The genus contains at least three described species distributed in North America. Members of this genus are part of the diverse darkling beetle fauna, which are generally associated with dry or decaying organic matter. The genus name suggests an association with wood (from Greek xylon, meaning wood), though specific habitat preferences for Xylopinus species are not well documented.

  Tenebrionidaedarkling-beetlesNorth-Americaforest-beetlessaprophagous

• Xylopinus aenescens

  Xylopinus aenescens is a species of darkling beetle in the family Tenebrionidae, first described by John Lawrence LeConte in 1866. It belongs to a genus of beetles associated with decaying wood and forest habitats. Records indicate it occurs in eastern Canada, specifically New Brunswick, Ontario, and Quebec. As a member of Tenebrionidae, it likely contributes to nutrient cycling through decomposition processes, though specific ecological studies on this species appear limited.

  darkling-beetleTenebrionidaeColeopteraeastern-Canadaforest-beetle

• Xylopinus saperdoides

  Decaying Darkling Beetle

  Xylopinus saperdoides is a darkling beetle in the family Tenebrionidae, commonly known as the Decaying Darkling Beetle. It is native to eastern North America and has been recorded in multiple Canadian provinces. The species is moderately well-documented, with nearly 1000 observations on iNaturalist.

  ColeopteraTenebrionidaedarkling-beetleNorth-AmericaCanada

• Zophobas atratus

  superworm, kingworm, barley worm, morio worm, giant mealworm beetle

  Zophobas atratus is a darkling beetle (Tenebrionidae) whose larvae, known as superworms, are widely used as feed for captive reptiles, amphibians, birds, and fish. The species is notable for its larger size compared to the yellow mealworm (Tenebrio molitor), with larvae reaching 50–60 mm in length. Adults measure up to 57 mm. The species has gained attention for its ability to biodegrade polystyrene plastics through mechanical shredding and bacterial gut enzyme activity. It is native to tropical regions of Central and South America but has been introduced globally through the pet trade. The name Zophobas morio is a junior synonym.

  darkling-beetlesuperwormpet-feedplastic-degradationbiodegradationentomophagyTenebrionidaecommercial-insect-rearingpolystyrene-degradationfeed-insect

• Zophobas subnitens

  Zophobas subnitens is a species of darkling beetle in the family Tenebrionidae. It is closely related to Zophobas morio, commonly known as the "superworm," which is widely used as animal feed and studied for human consumption. The genus Zophobas contains several species that have gained attention for their nutritional value and potential in waste management. However, specific research on Z. subnitens itself appears limited compared to its better-known congener.

  darkling-beetleTenebrionidaeZophobasinsect-feedcoleoptera