Impoverished Harp Ground Beetle
Acupalpus pauperculus is a species of ground beetle in the family Carabidae, first described by Dejean in 1829. It is known from North America, with records from Canada and the United States. The species belongs to the genus Acupalpus, a group of small to medium-sized ground beetles often associated with moist habitats. Despite its wide geographic range, it remains poorly documented in the scientific literature.
Dwarf Harp Ground Beetle
Acupalpus pumilus is a species of ground beetle in the family Carabidae, first described by Lindroth in 1968. It is known from North America, with records from Canada and the United States. The species belongs to the genus Acupalpus, a group of small ground beetles often referred to as harp ground beetles. Very few observations of this species have been documented.
A small ground beetle in the family Carabidae, originally described by LeConte in 1857. Currently treated as a synonym of Anthracus tener. The species is part of the tribe Stenolophini, a group of small carabid beetles commonly found in various terrestrial habitats.
shining flower beetles
Acylomus is a genus of shining flower beetles in the family Phalacridae, established by Sharp in 1888. The genus comprises approximately eight described species distributed primarily in North and Central America. Species within this genus are small, compact beetles characterized by their shiny, often metallic appearance. The genus has been subject to taxonomic study by researchers including Dr. Paul D. N. Hebert, who included Acylomus ergoti in his DNA barcoding work on insects.
Acylomus ergoti is a species of beetle in the family Phalacridae, first described by Thomas Casey in 1890. The species has been documented in at least 8 observations on iNaturalist. It belongs to a family commonly known as shining flower beetles or oval beetles. Dr. Paul D. N. Hebert, pioneer of DNA barcoding, has worked on this species as part of his broader research on insect taxonomy using molecular methods.
Ergot Beetle
Acylomus pugetanus is a species of beetle in the family Phalacridae, commonly known as the Ergot Beetle. It was described by Casey in 1916. The species is part of a genus associated with ergot fungi, though specific ecological details for this particular species remain limited in available literature.
Casey's Rove Beetle
Acylophorus caseyi is a species of rove beetle (family Staphylinidae) described by Leng in 1920. It belongs to the genus Acylophorus, a group of relatively large rove beetles within the tribe Staphylinini. The species is known from eastern North America, with records spanning from Canada to the southeastern United States. Like other members of its genus, it is likely associated with forest floor habitats and decaying organic matter.
Acylophorus pratensis is a rove beetle species in the family Staphylinidae, first described by LeConte in 1863. The species is currently recognized as a synonym of Amacylophorus pratensis. It has been documented in limited observations across parts of Canada and the northeastern and midwestern United States.
ladybugs, lady beetles, ladybirds
Adalia is a genus of lady beetles (Coccinellidae) containing two species: A. bipunctata (two-spot ladybird) and A. decempunctata (ten-spot ladybird). These beetles are aphid predators found across the Palearctic region. Both species exhibit color pattern polymorphism and possess alkaloid chemical defenses. A. bipunctata is known to harbor multiple male-killing symbionts including Wolbachia, Rickettsia, and Spiroplasma, though symbiont phenotypes vary geographically.
Adelestini is a tribe of soft-winged flower beetles (family Melyridae, subfamily Malachiinae). Members are small, elongate beetles with soft elytra characteristic of the family. The tribe was established to accommodate genera with distinctive morphological features separating them from other malachiine tribes, particularly in antennal structure and male genitalia. Species occur primarily in the Old World, with greatest diversity in the Palaearctic and Oriental regions.
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.
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.
ant-like leaf beetles
Aderus is a genus of ant-mimicking leaf beetles in the family Aderidae. The genus was established in 1829 and contains multiple species distributed across parts of Europe and the Americas. Members are characterized by their compact, ant-like body form.
Adranes coecus is a species of ant-loving beetle in the family Staphylinidae. It is known from eastern North America. The species belongs to the tribe Clavigerini, whose members are obligate myrmecophiles, living in close association with ant colonies.
narrow-waisted bark beetle
Aegialites debilis is a species of narrow-waisted bark beetle in the family Salpingidae, described by Mannerheim in 1853. It is found in North America, with records from Alaska and the contiguous United States. The species belongs to a small genus of beetles characterized by their constricted body form. Very little detailed biological information has been published for this species.
minute hooded beetle
Aenigmaticum californicum is a species of minute hooded beetle in the family Corylophidae, first described by Thomas Casey in 1889. It is found in North America. The species belongs to a genus of very small beetles commonly known as minute hooded beetles or minute fungus beetles.
click beetles
Aeolus is a genus of click beetles (family Elateridae) comprising over 220 described species distributed worldwide. Members of this genus possess the characteristic elaterid body plan with a prosternal process that engages with a mesosternal cavity, enabling the 'clicking' mechanism used to right themselves when overturned. The genus was established by Eschscholtz in 1829 and is currently classified within the subfamily Agrypninae and tribe Oophorini.
Aeolus amabilis is a species of click beetle in the family Elateridae, described by LeConte in 1853. It belongs to a genus characterized by small to medium-sized beetles with the typical elaterid body plan. The species has been recorded in Ontario, Canada, though detailed biological information remains limited in available sources.
Click beetle
Aeolus cribratus is a species of click beetle in the family Elateridae. Click beetles are named for their ability to right themselves using a prosternal process that fits into a mesosternal groove, producing an audible clicking sound. Members of the genus Aeolus are generally small to medium-sized beetles. The specific epithet 'cribratus' refers to a sieve-like or punctured appearance, likely describing surface sculpturing on the elytra or pronotum.
Sweet Click Beetle
Aeolus mellillus, commonly known as the Sweet Click Beetle, is a species of click beetle in the family Elateridae. The species was described by Thomas Say in 1836. It is a relatively small click beetle with documented records from the northeastern United States, particularly Vermont. The common name "Sweet Click Beetle" distinguishes it from other members of the genus.
Aeolus subornatus is a species of click beetle in the family Elateridae. The genus Aeolus contains numerous small, often inconspicuously colored species that are frequently overlooked due to their cryptic habits. Like other elaterids, adults possess the characteristic prosternal process that enables the clicking/jumping defensive mechanism. The species is poorly documented in scientific literature, with only three observations recorded on iNaturalist as of the knowledge cutoff.
Three-lined Click Beetle
Aeolus trilineatus is a species of click beetle in the family Elateridae. The genus name derives from Aeolus, the Greek keeper of the winds, referencing the wind-dispersed nature of many beetle species. The species epithet 'trilineatus' refers to the three longitudinal lines characteristic of this beetle's elytral pattern. Like other elaterids, it possesses a prosternal process that fits into a mesosternal groove, enabling the distinctive clicking mechanism used to right itself when overturned.
Horn's Aethecerinus Long-Horned Beetle
Aethecerinus hornii is a rare longhorned beetle (family Cerambycidae) endemic to Florida scrub habitat in Highlands and Lee counties. Described by Lacordaire in 1869, this species belongs to the tribe Trachyderini, a group known for bright coloration, flower-feeding behavior, and diurnal activity. The species is extremely restricted in range and poorly represented in collections, with only five observations documented.
pollen beetles
Afrogethes is a genus of pollen beetles in the family Nitidulidae, established by Audisio & Cline in 2009. The genus contains at least two described species: Afrogethes canadensis and Afrogethes saevus. Species in this genus are associated with pollen-feeding habits characteristic of many nitidulid beetles.
pollen beetle
Afrogethes saevus is a species of pollen beetle in the family Nitidulidae. It is found in North America, with confirmed records from the Canadian provinces of Alberta, Manitoba, and Saskatchewan.
Agabinus is a genus of predaceous diving beetles (family Dytiscidae) established by Crotch in 1873. The genus contains two described species: Agabinus glabrellus and Agabinus sculpturellus. Members are found in North America and are classified within the subfamily Agabinae.
Agabus arcticus is a predaceous diving beetle in the family Dytiscidae with a Holarctic distribution, occurring in North America and the Palearctic region. It belongs to the arcticus-group of Agabus species, which is characterized by specific morphological and ecological traits adapted to northern environments. The species has three described larval stages and is known from reared material collected in northern Sweden.
Agabus crassipes is a diving beetle species in the family Dytiscidae, described by Fall in 1922. It is native to North America, with records from western Canada including Alberta and British Columbia. As a member of the genus Agabus, it is an aquatic predator inhabiting freshwater environments. The specific epithet 'crassipes' refers to its stout or thick legs.
Agabus falli is a species of predaceous diving beetle in the family Dytiscidae. It is known from North America, with records from Alberta and Manitoba in Canada. As a member of the genus Agabus, it is an aquatic predator inhabiting freshwater environments. The species was described by Zimmermann in 1934.
Agabus semipunctatus is a predaceous diving beetle in the family Dytiscidae. The species was originally described as Colymbetes semipunctatus by Kirby in 1837 before being transferred to the genus Agabus. It is recorded from North America, with specific distribution records from Alberta and British Columbia in Canada. As a member of the predaceous diving beetles, it is adapted to aquatic habitats.
Agabus triton is a species of predaceous diving beetle in the family Dytiscidae, described by Fall in 1922. The species is currently treated as a synonym of Agabus amnicola. It has been recorded from Europe, Northern Asia (excluding China), and North America. As a member of the Dytiscidae, it belongs to a family of aquatic beetles adapted to life in freshwater habitats.
Agabus verisimilis is a species of predaceous diving beetle in the family Dytiscidae. It belongs to the large genus Agabus, which contains numerous similar-looking species primarily associated with freshwater habitats. The specific epithet "verisimilis" (meaning "very similar") likely refers to its close resemblance to other Agabus species. Information on this species is limited in published literature.
Agathidium dubitans is a species of round fungus beetle in the family Leiodidae, described by Henry Clinton Fall in 1934. The specific epithet "dubitans" is Latin for "doubting," reflecting taxonomic uncertainty at the time of description. Records indicate occurrence in the United States across Arizona, New Mexico, Ohio, Pennsylvania, and Tennessee. The species belongs to the subgenus Revolvens within the genus Agathidium.
Agathidium hamulum is a species of round fungus beetle in the family Leiodidae, described by Miller and Wheeler in 2005. The specific epithet "hamulum" refers to a small hook, likely describing a morphological feature of this species. Like other members of the genus Agathidium, it is presumed to be associated with fungi and decaying organic matter. The species has been documented in both Canada and the northeastern United States.
Agathidium maculosum is a species of slime mold beetle in the family Leiodidae, first described by Brown in 1928. The species epithet 'maculosum' refers to spotted or mottled coloration. It belongs to a genus known for feeding on slime molds (Myxomycetes). The species has been recorded in western North America.
Agathidium mollinum is a species of round fungus beetle in the family Leiodidae, first described by Fall in 1934. It belongs to the subgenus Concinnum within the genus Agathidium. The species occurs in northeastern North America, with records from both Canada and the United States.
Agathidium repentinum is a species of round fungus beetle in the family Leiodidae, described by Horn in 1880. It is distributed across northern North America, with records from Canada (Alberta, Manitoba, Newfoundland and Labrador, Yukon) and the United States (Alaska, New Hampshire). The specific epithet "repentinum" derives from Latin, possibly referring to sudden or unexpected characteristics. Like other members of the genus, it is presumed to be associated with fungal habitats, though detailed ecological studies are limited.
Agathidium rusticum is a species of round fungus beetle in the family Leiodidae, described by Fall in 1934. It belongs to the genus Agathidium, a group of small beetles commonly associated with fungal habitats. The species is known from North America, with records from both Canada and the United States.
A genus of narrow-waisted bark beetles in the family Salpingidae. Contains at least one described species, A. brunneus. Members of this genus are small beetles associated with bark habitats.
Aglenus brunneus is a small beetle in the family Salpingidae, originally described by Gyllenhal in 1813 as Hypophloeus brunneus. It belongs to the order Coleoptera and is distributed in the Azores, with confirmed presence on Faial Island. The species is poorly documented in scientific literature, with limited ecological and biological information available.
round fungus beetles
Aglyptinus is a genus of small, rounded beetles in the family Leiodidae, commonly known as round fungus beetles. The genus was established by Cockerell in 1906 and contains over forty described species. Members are classified within the tribe Scotocryptini and are associated with fungal habitats. The genus is distributed across North America, with Aglyptinus laevis being the most well-documented species in the United States and Canada.
Agna is a genus of water scavenger beetles in the family Hydrophilidae, subfamily Sphaeridiinae. The genus was established by Smetana in 1978 and is classified within the tribe Megasternini. Members of this genus are small beetles associated with aquatic or moist habitats, though specific ecological details remain poorly documented in available sources.
Canadian dung beetle
Agoliinus canadensis is a species of dung beetle in the family Scarabaeidae, subfamily Aphodiinae. It occurs in western North America, with records from the Canadian provinces of Alberta, British Columbia, and Saskatchewan, and from the western United States including California, Colorado, Idaho, Montana, Oregon, Washington, and Wyoming. As a member of the Aphodiinae, it is associated with dung decomposition. The species was described by Garnett in 1920.
Agoliinus incommunis is a species of small scarab beetle in the subfamily Aphodiinae, originally described by Fall in 1932. The species is documented from mountainous regions of western North America, with records spanning from British Columbia south to New Mexico. As a member of the Aphodiini tribe, it belongs to a group commonly known as small dung beetles, though specific ecological details for this species remain poorly documented. The species name "incommunis" (Latin for "uncommon" or "not shared") may allude to its rarity or restricted distribution.
Leopard Dung Beetle
Agoliinus leopardus is a dung beetle species in the family Scarabaeidae, commonly known as the Leopard Dung Beetle. It is distributed across northern North America, with records from Alaska through the Canadian provinces to the northeastern and north-central United States. As a member of the Aphodiinae subfamily, it is associated with dung decomposition processes. The species has been documented through 62 iNaturalist observations, indicating moderate citizen science engagement.
Agonoleptus thoracicus is a ground beetle in the family Carabidae, described by Casey in 1914. It belongs to the tribe Stenolophini within the subfamily Harpalinae. The species has been documented in North America, with specific records from the United States including Vermont.
Agonum collare is a species of ground beetle in the family Carabidae, found in North America. It belongs to the subfamily Platyninae and is part of the diverse genus Agonum, which contains numerous ground beetle species. The species was described by Thomas Say in 1830. Like other members of its genus, it is likely associated with moist habitats, though specific ecological details remain poorly documented.
Agonum extensicolle is a species of ground beetle in the subfamily Platyninae. It occurs in western North America, including Arizona in the United States and Canada. As a member of the genus Agonum, it belongs to a diverse group of small to medium-sized ground beetles. The species is documented in the iNaturalist database with approximately 800 observations.
Agonum pallipes is a species of ground beetle in the family Carabidae, found in North America. The species is part of a large genus of predatory beetles commonly known as ground beetles. As with other members of Carabidae, it is likely predatory, though specific ecological details are poorly documented in available sources.
Agonum piceolum is a species of ground beetle in the family Carabidae, first described by LeConte in 1879. It is native to North America, with records from Canada and the United States. As a member of the genus Agonum, it is a predatory beetle that inhabits ground-level habitats. The species is part of a diverse genus containing numerous similar-looking ground beetles that require careful examination for identification.