Aulacoscelidinae is a small beetle subfamily containing 19 species. Adults feed on foliage and juices of New World cycads. Larvae develop within cycad megagametophytes, representing a specialized seed-predation relationship. The group has been historically classified within Chrysomelidae or as a separate family.
leaf or bud weevil
Auletobius humeralis is a species of leaf or bud weevil in the family Attelabidae, described by Hoffmann in 1953. The species is found in North America. As a member of Attelabidae, it is associated with leaf or bud feeding habits typical of this family of weevils.
minute seed weevil
Auleutes ater is a species of minute seed weevil in the family Curculionidae. It is found in North America. The species is classified as provisionally accepted in taxonomic databases, indicating some uncertainty regarding its current taxonomic status or placement within the genus.
minute seed weevil
Auleutes tenuipes is a species of minute seed weevil in the family Curculionidae, first described by John Lawrence LeConte in 1876. It is one of approximately 30 species in the genus Auleutes, a group of small weevils associated with seeds. The species is documented from eastern Canada and is presumed to occur more broadly in North America, though records remain sparse.
Aulicus is a genus of checkered beetles in the family Cleridae, containing approximately 14 described species. These beetles are part of the diverse clerid fauna, a family known for predatory habits. The genus was established by Spinola in 1841. Specific biological details for most Aulicus species remain poorly documented in published literature.
Aulicus antennatus is a species of checkered beetle in the family Cleridae. The genus Aulicus belongs to the clerid subfamily Clerinae, a group of predatory beetles commonly associated with other insects. Records indicate this species is present in the University of California Riverside (UCR) entomology collection, though detailed biological information remains limited. Like other clerids, members of this genus are presumed to be predatory, but specific prey associations for A. antennatus have not been documented.
Aulicus dentipes is a species of checkered beetle in the family Cleridae, described by Schaeffer in 1921. It belongs to the genus Aulicus, a group of predatory beetles within this family. The species is documented from North America, though specific details regarding its biology, ecology, and distribution within this range remain poorly known in the available literature.
checkered beetle
Aulicus femoralis is a species of checkered beetle in the family Cleridae, described by Schaeffer in 1917. It is found in North America. As a member of Cleridae, it belongs to a family whose larvae are predominantly predatory, though specific ecological details for this species remain poorly documented in available sources.
checkered beetle
Aulicus monticola is a species of checkered beetle in the family Cleridae. It was described by Gorham in 1882. The species occurs in Central America and North America. As a member of the Cleridae, it belongs to a family commonly known as checkered beetles, which are predominantly predatory.
flower weevil
Aulobaris anthracina is a species of flower weevil in the beetle family Curculionidae. It was described by George Charles Champion in 1909. The species is found in North America. The genus Aulobaris belongs to the weevil family, characterized by the distinctive elongated snout (rostrum) typical of curculionids.
Aulonium ferrugineum is a species of cylindrical bark beetle in the family Zopheridae. It is found in North America.
Aulonothroscus is a genus of small false click beetles (family Throscidae) containing more than 20 described species. These beetles belong to the superfamily Elateroidea but lack the prominent clicking mechanism of true click beetles (Elateridae). The genus was established by Horn in 1890 and has been documented primarily in northern Europe and Scandinavia based on available distribution records.
small false click beetle
Aulonothroscus constrictor is a small false click beetle in the family Throscidae, characterized by the ability to flex and snap its body to produce a clicking sound similar to true click beetles (Elateridae). The species is native to North America and has been recorded across a broad geographic range including Canada and the United States. Like other members of Throscidae, it is a small, compact beetle with clubbed antennae.
false click beetle
Aulonothroscus validus is a small false click beetle in the family Throscidae, first described by LeConte in 1868. Adults measure 2.5 to 5 mm in length. The species is distributed across North America, with records from Canada and the United States.
Australaphodius is a genus of aphodiine dung beetles in the family Scarabaeidae, established by Balthasar in 1942. The genus contains at least four described species, with records from Australia. As aphodiines, members of this genus are likely associated with dung decomposition, though specific ecological details remain poorly documented.
Autalia is a genus of rove beetles in the family Staphylinidae, first described by Leach in 1819. The genus belongs to the subfamily Aleocharinae and is the type genus of the tribe Autaliini. Species are documented from Europe, Northern America, and the Neotropics. The genus includes at least four recognized species: Autalia impressa, A. longicornis, A. puncticollis, and A. rivularis.
Axinopalpus pratti is a species of ground beetle in the family Carabidae, described by Hatch in 1949. The genus Axinopalpus belongs to the subtribe Dromiusina within the tribe Lebiini. This species is known from the western United States. Members of this genus are generally small, active beetles associated with ground-level habitats.
Axinopalpus vittatus is a species of ground beetle in the family Carabidae, described by Hatch in 1949. The genus Axinopalpus belongs to the subtribe Dromiusina within the tribe Lebiini. The species is recorded from the United States, though specific details about its biology and ecology remain poorly documented in available sources.
Axylophilus is a genus of ant-like leaf beetles in the family Aderidae, established by Casey in 1895. Members of this genus are small, inconspicuous beetles associated with decaying wood and leaf litter habitats. The genus is part of a family historically placed within Tenebrionoidea, though Aderidae systematics remain under study. Very few observations or studies document this genus directly.
clown beetle
Bacanius acuminatus is a species of clown beetle in the family Histeridae, first described by Casey in 1893. It is native to North America, with confirmed records from California. The species belongs to a group commonly known as clown beetles, characterized by their compact, often rounded body form and clubbed antennae. Like other histerids, it is likely associated with decaying organic matter, though specific ecological details remain poorly documented.
Bacanius hatchi is a species of clown beetle in the family Histeridae, first described by Wenzel in 1960. It is known from the Pacific Northwest region of North America, with records from Oregon and Washington. As a member of the Histeridae, it belongs to a family of beetles commonly associated with decomposing organic matter and various microhabitats.
Baconia is a genus of clown beetles (family Histeridae) comprising 116 species, with 85 species described in a 2013 systematic revision. The genus is renowned for brilliant jewel-like coloration and bizarrely flattened body forms—traits rare and little-appreciated in the Histeridae. Species are primarily distributed across North and South America. Many species are known from extremely few specimens; nearly half are represented by only one or two specimens in museum collections.
clown beetle
Baconia venusta is a species of clown beetle in the family Histeridae, described by John Lawrence LeConte in 1845. The genus Baconia is renowned for brilliant coloration and bizarrely flattened body forms, with species exhibiting jewel-like metallic hues that are rare in the Histeridae family. Species in this genus are believed to be predators of wood-boring beetles and their larvae, with some attracted to bark beetle pheromones. B. venusta is one of approximately 116 species in the genus, most of which were described in a 2013 systematic revision.
root-eating beetles
Bactridium is a genus of beetles in the family Monotomidae, commonly referred to as root-eating beetles. The genus contains approximately 18 described species. These beetles belong to the order Coleoptera and are part of a family characterized by small size and association with decaying organic matter.
Badister grandiceps is a species of ground beetle in the genus Badister, first described by Thomas L. Casey in 1920. It is distributed across Canada and the United States in North America. The species is characterized by its brown coloration. Like other members of the genus Badister, it belongs to the tribe Badisterini within the subfamily Harpalinae of the family Carabidae.
Short Spotted Beetle
Badister obtusus is a species of ground beetle in the family Carabidae, first described by LeConte in 1878. The species is known from North America, with records from Canada and the United States. It is a member of the diverse genus Badister, which comprises small to medium-sized predatory beetles. Information on its biology and ecology remains limited.
Badister parviceps is a small ground beetle in the family Carabidae, described by Ball in 1959. The species is found in North America, with records from Canada and the United States. As a member of the genus Badister, it belongs to a group of predatory beetles commonly known as bombardier beetles or hunting beetles, though specific ecological details for this species remain poorly documented.
Baeocera pallida is a species of rove beetle in the family Staphylinidae, described by Thomas Lincoln Casey in 1900. It belongs to the subfamily Scaphidiinae, a group commonly known as shining fungus beetles due to their association with fungal substrates. The species is documented from scattered localities across eastern and central North America, with records from Canada and the United States.
Bagous tuberosus is a species of true weevil in the family Curculionidae, described by O'Brien & Wibmer in 1982. It is known to occur in North America. The genus Bagous comprises weevils typically associated with aquatic or semi-aquatic habitats, though specific ecological details for this species remain poorly documented.
Baliosus is a genus of leaf beetles in the family Chrysomelidae, containing at least 40 described species. Members are classified within the subfamily Cassidinae, which includes both tortoise beetles and hispines. The genus was established by Weise in 1905. Species in this genus are primarily found in North America.
Barilepton undescribed represents a species of jewel beetle (family Buprestidae) that has not yet received formal scientific description. The genus Barilepton belongs to the diverse metallic wood-boring beetle family, whose members are characterized by their often brilliant metallic coloration and wood-associated life histories. As an undescribed species, it awaits taxonomic formalization pending further study.
Barilepton albescens is a species of weevil in the family Curculionidae, first described by John Lawrence LeConte in 1880. The genus Barilepton is classified within the superfamily Curculionoidea. This species is provisionally accepted in taxonomic databases, indicating that its classification may require further verification. Beyond basic taxonomic placement, specific biological and ecological information for this species remains sparse in the available literature.
flower weevil
Barinus linearis is a species of flower weevil in the beetle family Curculionidae. It was described by Blatchley and Leng in 1916. The species is known from North America. As a member of the flower weevil group, it is likely associated with flowers, though specific host plant relationships have not been documented.
Baris is a genus of true weevils in the family Curculionidae, first described by Germar in 1817. The genus comprises small to medium-sized weevils characterized by their typical curculionid body plan with an elongated rostrum. Species within Baris are associated with various host plants, with some species documented as pests of agricultural crops including sunflowers. The genus has a primarily Nearctic distribution, with species occurring across North America.
Baris dilatata is a species of flower weevil in the beetle family Curculionidae, described by Thomas L. Casey in 1892. It is distributed across North America. As a member of the genus Baris, it belongs to a group commonly referred to as flower weevils, though specific details regarding its biology and ecology remain poorly documented in available literature.
flower weevil
Baris heterodoxa is a species of flower weevil in the beetle family Curculionidae, first described by H.C. Fall in 1902. The species is found in North America and belongs to the genus Baris, a group of weevils commonly associated with flowers. Very little is known about its specific biology, host associations, or ecological role.
flower weevil
Baris monticola is a species of flower weevil in the family Curculionidae, first described by Henry Clinton Fall in 1901. It belongs to the genus Baris, a group of weevils commonly associated with flowers. The species is recorded from North America, though specific details about its biology and ecology remain poorly documented in available literature.
flower weevil
Baris rubripes is a species of flower weevil in the beetle family Curculionidae, first described by Hustache in 1924. The genus Baris belongs to the large and diverse weevil family, whose members are characterized by their elongated snouts (rostra) and often exhibit specialized relationships with flowering plants. As a flower weevil, this species likely utilizes floral resources, though specific ecological details remain poorly documented. The species is provisionally accepted in taxonomic databases, indicating some uncertainty regarding its taxonomic status or the need for further revisionary work.
transverse flower weevil
Baris transversa is a species of flower weevil in the beetle family Curculionidae. It is found in North America. The species was first described by Thomas Say in 1832.
flower weevil
Baris umbilicata is a species of flower weevil in the beetle family Curculionidae, originally described by LeConte in 1858. It is native to North America. Like other members of the genus Baris, this species is associated with flowers, though specific ecological details remain poorly documented. The species is represented by limited observational records, with only three observations documented on iNaturalist.
gargoyle beetle
Batrisodes scabriceps is a small rove beetle in the subfamily Pselaphinae, commonly known as the short-winged mould beetles. Males of this species exhibit pronounced facial modifications including horns, spines, or other projections that give the genus its informal name 'gargoyle beetles.' The species was originally described by John Lawrence LeConte in 1849 and occurs across eastern and central North America. Like other members of Batrisodes, it is presumed to inhabit leaf litter and prey on microarthropods.
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.
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.
Belionota prasina is a jewel beetle species in the family Buprestidae, first described by Thunberg in 1789. The species belongs to the genus Belionota, which comprises metallic wood-boring beetles distributed across various regions. Records indicate presence in the conterminous 48 United States. The species exhibits the characteristic metallic coloration typical of buprestid beetles.
Belladonna barryi is a species of rove beetle in the family Staphylinidae. The genus name 'Belladonna' references the toxic nightshade plant, though this does not necessarily indicate a biological association. The species epithet 'barryi' likely honors an individual, following common taxonomic practice. Very little is known about this species beyond its taxonomic placement.
Belonuchus is a genus of large rove beetles in the family Staphylinidae, comprising more than 30 described species. Members of this genus are found in the Americas, with records from Mexico and the southwestern United States. At least one species, B. cifuentesi, has been documented in association with Agave plants. The genus is characterized by features typical of the tribe Staphylinini within the subfamily Staphylininae.
Bembidion acticola is a species of ground beetle in the family Carabidae. It is known from a narrow geographic range along the Atlantic coast of the eastern United States. The species was described by Casey in 1884. Very little ecological or behavioral information has been published for this species.
A small ground beetle in the genus Bembidion, first described by LeConte in 1847. The species is poorly documented in modern literature, with minimal observational records available. Based on genus-level characteristics, it belongs to a diverse group of carabid beetles commonly associated with riparian and moist habitats.
Bembidion americanum is a species of ground beetle in the family Carabidae. It is distributed across North America, with records from Canada and the United States. As a member of the large genus Bembidion, it is a small predatory beetle inhabiting ground-level environments.
Bembidion amnicum is a synonym of Bembidion nubiculosum, a species of ground beetle in the family Carabidae. The name was published by Casey in 1918. The currently accepted name is Bembidion (Notaphus) nubiculosum.