Berginus is a genus of hairy fungus beetles in the family Mycetophagidae, established by Erichson in 1846. The genus contains at least three described species distributed across North America and Europe. Members of this genus are associated with fungal habitats. The genus is classified in the subfamily Bergininae, which bears its name.
Berosus rugulosus is a species of water scavenger beetle in the family Hydrophilidae. It is found in arid and semi-arid regions of the southwestern United States and Mexico. Like other members of the genus Berosus, it is associated with aquatic or semi-aquatic habitats. The species was described by George Henry Horn in 1873.
Berosus sayi is a species of water scavenger beetle in the family Hydrophilidae, native to North America. First described by Thomas Say in 1825 as Berosus striatus, it was later renamed Berosus sayi by Hansen in 1999. The species is characterized by a distinctive morphological trait in females: a small tooth on the suture near the apex of each elytron.
Stylish Water Scavenger Beetle
Berosus stylifer is a water scavenger beetle in the family Hydrophilidae, described by Horn in 1873. It is found across western and central North America from Canada to Mexico. The species is part of a diverse genus of aquatic beetles commonly associated with freshwater habitats.
Billaea is a genus of tachinid flies comprising approximately 80 described species. Most larvae are parasitoids of beetle larvae, particularly cerambycids and lucanids, with some species attacking lepidopteran hosts in the family Pyralidae. Several species have been investigated as biological control agents for agricultural and forestry pests, including palm weevils and sugarcane borers.
Bitoma gracilis is a small beetle species in the family Zopheridae, first described by Sharp in 1894. It belongs to a genus of cylindrical bark beetles found in forested habitats. The species has been recorded from both North America and Middle America, though specific details about its biology remain poorly documented.
Bitoma vittata is a species of cylindrical bark beetle in the family Zopheridae, first described by Schaeffer in 1907. It is found in North America. The species belongs to a genus of beetles associated with dead wood habitats.
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.
Pitch Lady Beetle
Blaisdelliana sexualis is a minute lady beetle (family Coccinellidae) found in the southwestern United States. Adults measure approximately 1.25–1.78 mm in length. The species has been recorded from California and Arizona, where it inhabits arid and semi-arid environments. Little is known of its biology beyond basic morphological description.
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.
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.
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.
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.
false soldier beetles
Blatchleya is a genus of false soldier beetles (family Omethidae) established by Knab in 1910. It contains a single described species, B. gracilis. The family Omethidae is a small group of beetles closely related to soldier beetles (Cantharidae) but distinguished by specific morphological features.
Blauta falli is a species of click beetle in the family Elateridae. As a member of this family, it possesses the characteristic prosternal process that allows for the clicking mechanism used to right itself when overturned. Information regarding its specific biology and ecology remains limited.
Bledius emarginatus is a species of rove beetle in the family Staphylinidae, tribe Blediini. The species was described by Thomas Say in 1831. It is one of many species in the large genus Bledius, which comprises small to medium-sized beetles often associated with moist or riparian habitats.
spiny-legged rove beetle
Bledius mandibularis is a species of rove beetle in the family Staphylinidae, characterized by spiny legs typical of its genus. The species was described by Erichson in 1840 and occurs across a broad geographic range spanning North America and the Caribbean. Like other members of the genus Bledius, it is associated with riparian and shoreline habitats.
Bledius pallipennis is a species of rove beetle in the subfamily Oxytelinae, described by Thomas Say in 1823. It belongs to the genus Bledius, a diverse group of beetles commonly associated with moist, sandy, or muddy habitats. The species is distributed across the central and eastern United States. Like other members of its genus, it is likely associated with riparian or shoreline environments.
Bledius semiferrugineus is a rove beetle in the tribe Blediini, characterized by its semiferrugineous (half rusty-brown) coloration. The species occurs across eastern North America from Canada to the southern United States, with records extending to Cuba. Like other members of Bledius, it is associated with moist habitats, particularly shorelines and wetland margins. The species was described by John Lawrence LeConte in 1863.
Bobitobus kelleyi is a species of rove beetle in the family Staphylinidae, subfamily Mycetoporinae. It is widely distributed across northern North America, with records from numerous Canadian provinces and U.S. states. The species was described by Malkin in 1944 and belongs to a genus within one of the largest families of beetles.
earth-boring scarab beetles
Bolboceratinae is a subfamily of earth-boring scarab beetles within Geotrupidae, containing approximately 8 genera and at least 40 described species. The group exhibits a disjunct global distribution with centers of diversity in Australia, South America, southern Africa, and parts of Eurasia. Some authorities recognize Bolboceratinae as the family Bolboceratidae. Members are characterized by fossorial adaptations and diverse reproductive strategies including egg gigantism in some lineages.
Bolbocerosoma confusum is an earth-boring scarab beetle in the family Geotrupidae, described by Brown in 1928. It is native to North America, with documented records from Arkansas, Illinois, Iowa, Louisiana, Missouri, Oklahoma, and Texas. As a member of the bolboceratine geotrupids, it exhibits the family's characteristic fossorial adaptations for burrowing in soil.
Bolbocerosoma pusillum is a species of earth-boring scarab beetle in the family Bolboceratidae, described by Dawson and McColloch in 1924. The species is distributed across North America and comprises two recognized subspecies: the nominate form B. p. pusillum and B. p. townesi described by Howden in 1955. Like other members of the genus, this species is associated with burrowing behavior in soil and is attracted to light sources at night.
conifer bark beetle
Boros unicolor is a conifer bark beetle in the family Boridae, first described by Thomas Say in 1827. It is one of the few species in the small family Boridae, which is placed within the superfamily Bostrichoidea. The species is documented from North America, with records from Canada and the United States.
Boschella is a genus of checkered beetles in the family Cleridae, established by Barr in 1980. The genus contains a single described species, Boschella fasciata. Checkered beetles in this family are generally predatory or scavenging, though specific ecological details for this genus remain limited.
auger beetles, false powderpost beetles, horned powderpost beetles
Bostrichidae is a family of beetles containing more than 700 described species. Members are commonly known as auger beetles, false powderpost beetles, or horned powderpost beetles. The family includes significant stored product pests such as the lesser grain borer (Rhyzopertha dominica) and the larger grain borer (Prostephanus truncatus), as well as wood-boring species. The fossil record extends to the Cretaceous period.
horned powder-post beetles
Bostrichinae is a subfamily of powderpost beetles in the family Bostrichidae, commonly referred to as horned powder-post beetles. The subfamily contains more than 60 genera and over 500 described species. Members are primarily wood-boring beetles, with some species serving as hosts for parasitoid wasps. The group has been documented across multiple continents including records from Panama and Turkey.
Carpet, Powderpost, and Deathwatch Beetles
Bostrichoidea is a superfamily of beetles within the infraorder Bostrichiformia. It encompasses several families including Bostrichidae (powder-post and horned beetles), Dermestidae (carpet beetles), Endecatomidae, and Ptinidae (death-watch and spider beetles). Members are predominantly associated with dry habitats and exhibit diverse ecological roles ranging from wood-boring to scavenging on dried organic matter. The superfamily is united by modified cryptonephridism, male aedeagus structure, and larval mandibular morphology lacking a basal mola.
Bothrideres montanus is a species of dry bark beetle in the family Bothrideridae, described by Horn in 1878. The species is known from North America, though specific details about its biology and ecology remain poorly documented. Members of the genus Bothrideres are typically associated with dead or decaying wood, where they likely feed on fungal hyphae or other microfauna. The specific epithet 'montanus' suggests a possible association with mountainous regions, though this has not been confirmed.
Corner-spotted Spurleg
Brachiacantha quadrillum is a small lady beetle in the family Coccinellidae, first described by LeConte in 1858. It belongs to the dentipes group within the genus Brachiacantha. The species is known from North America, with records from Texas and additional Neotropical localities documented in recent taxonomic revisions. Adults are characterized by distinctive coloration on the pronotum and elytra.
Brachiacantha rotunda is a small lady beetle species in the family Coccinellidae, described by Gordon in 1985. The species name refers to its rounded body form. Adults measure approximately 3.10–4.00 mm in length. The species has been recorded from multiple states and provinces in eastern North America.
Brachinus cibolensis is a species of ground beetle in the family Carabidae, first described by Erwin in 1970. It belongs to the genus Brachinus, commonly known as bombardier beetles, which are renowned for their unique chemical defense mechanism. The species is distributed across Central America and North America, including Mexico and the United States. Like other members of its genus, it is presumed to possess the characteristic ability to discharge hot, noxious chemicals from the abdomen as a defense against predators, though specific behavioral observations for this species have not been documented.
elongated bombardier beetle
Brachinus elongatulus is a species of bombardier beetle in the ground beetle family Carabidae. It is found in Central America and North America, with records from Mexico and the United States. As a member of the genus Brachinus, it possesses the characteristic defensive chemistry that gives bombardier beetles their common name. The species was described by Chaudoir in 1876.
Brachinus puberulus is a species of bombardier beetle in the family Carabidae, described by Chaudoir in 1868. It belongs to the genus Brachinus, renowned for its chemical defense mechanism that produces a hot, noxious spray from the abdomen when disturbed. The species is recorded from the United States and Middle America, though specific details about its biology and ecology remain sparse in the available literature.
marsh weevil
Brachybamus electus is a species of weevil in the family Brachyceridae, commonly referred to as a marsh weevil. It belongs to the superfamily Curculionoidea, which encompasses all weevils and their relatives. The species was described by Germar in 1833 and is provisionally accepted in modern taxonomic databases. It has been recorded in North America, specifically in Québec, Canada.
fungus weevil
Brachycorynus is a genus of fungus weevils in the family Anthribidae, established by Valentine in 1999. The genus contains three described species distributed in North America. Members are characterized by their association with fungi and their distinctive weevil morphology.
fungus weevil
Brachycorynus rectus is a species of fungus weevil in the beetle family Anthribidae. The species was described by John Lawrence LeConte in 1876. As a member of the fungus weevils, it is associated with fungal hosts rather than living plant tissue. The genus Brachycorynus contains multiple North American species, though detailed natural history information remains limited for this particular species.
Brachyderini is a tribe of weevils within the subfamily Entiminae (broad-nosed weevils), characterized by a relatively short, broad rostrum compared to other weevil groups. The tribe contains approximately 28 genera distributed across the Holarctic region, with notable genera including Brachyderes, Strophosoma, and Neliocarus. Members of this tribe are primarily associated with temperate forest and woodland habitats.
ant-loving beetles
Brachygluta is a genus of ant-loving beetles (Staphylinidae: Pselaphinae) containing over 80 described species. These small rove beetles are specialist predators of mites. The Nearctic fauna has been revised, with 29 species recognized in North America.
Brachygluta luniger is a small rove beetle in the family Staphylinidae. The species has been recorded from eastern North America, with distribution records spanning from Canada to the southeastern United States. As with other members of the genus Brachygluta, it is a poorly known species with limited published biological information. The genus belongs to the diverse rove beetle fauna, one of the largest families of beetles.
Brachygluta ulkei is a small rove beetle in the subfamily Pselaphinae, a diverse group of minute beetles often associated with leaf litter and soil habitats. The species was described by Brendel in 1866 and occurs in the eastern United States. Like other pselaphines, it is likely a predator or scavenger in microarthropod communities, though specific ecological details remain poorly documented.
Brachyina is a subtribe within the tribe Trachyini (family Buprestidae), established by Cobos in 1979. The subtribe includes small to minute metallic wood-boring beetles, with Taphrocerus being the primary genus in North America. Members are characterized by their compact body form and association with herbaceous or woody vegetation. The group is taxonomically stable but relatively understudied compared to other buprestid lineages.
Short Long-horned Beetle
Brachyleptura brevis is a flower longhorn beetle in the subfamily Lepturinae of the family Cerambycidae. The species is characterized by abbreviated elytra relative to other members of the genus, a trait referenced in its specific epithet "brevis" (short). It belongs to a group of diurnal cerambycids that visit flowers as adults. The species has been documented in North America, with records from Canada and the United States including Vermont.
Brachyleptura vagans is a species of longhorn beetle (Cerambycidae) first described by Guillaume-Antoine Olivier in 1795. It belongs to the subfamily Lepturinae, commonly known as flower longhorns, and is native to North America. The species is distinguished by its black elytra with small red patches behind the humeri and white-annulated antennae.
Brachyogmus ornatus is a species of weevil in the family Curculionidae, described by Linell in 1897. It is provisionally accepted in taxonomic databases and is known from North America. The genus Brachyogmus is part of the diverse weevil superfamily Curculionoidea. Very little is known about the specific biology or ecology of this species, with only six observations recorded in iNaturalist as of the available data.
Brachypeplus basalis is a species of sap beetle in the family Nitidulidae, described by Erichson in 1842. The genus Brachypeplus belongs to a group of beetles commonly associated with fermenting or decaying plant materials, fungi, and occasionally flowers. As a member of Nitidulidae, this species likely exhibits the family's characteristic compact body form and clubbed antennae. Records indicate presence in the conterminous United States.
Brachypnoea convexa is a species of leaf beetle in the family Chrysomelidae, found in the Eastern United States. First described by Thomas Say in 1824, this species belongs to a genus of small leaf beetles. Very little has been published regarding its biology, ecology, or specific habitat requirements.
Brachypterus urticae is a species of short-winged flower beetle in the family Kateretidae. It is native to Europe and has been recorded in North America as present. The species belongs to a group of beetles commonly associated with flowers and decaying plant material.
Brachysomus echinatus is a European weevil species in the family Curculionidae, subfamily Entiminae. First described by Bonsdorff in 1785, it was established as the senior synonym of B. hirsutus in a 2022 taxonomic revision. The species has been documented across northern and eastern Europe including Russia (Adygey, Altay, Arkhangel'sk, Bashkortostan, Buryat) and is one of 56 species included in a comprehensive morphological review of the genus.
Brachystylus is a genus of weevils in the family Curculionidae, subfamily Entiminae, and tribe Eustylini. The genus was described by Schönherr in 1845. Members of this genus are broad-nosed weevils, a group characterized by their short, broad rostrums. The genus has been documented in iNaturalist with 191 observations, indicating moderate recognition among naturalists.