Tenebrionidae
Guides
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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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.