Rove-beetle
Guides
Arianops nantahalae
Arianops nantahalae is a small rove beetle in the subfamily Pselaphinae, described by Barr in 1974. The species is endemic to the southern Appalachian Mountains of the eastern United States. It belongs to a genus of minute beetles adapted to life in forest leaf litter and soil microhabitats.
Arianops neglecta
Arianops neglecta is a species of rove beetle in the family Staphylinidae, subfamily Pselaphinae. It was described by Barr in 1974. The genus Arianops belongs to the tribe Amauropini within the diverse and species-rich pselaphine lineage. Members of this genus are small, cryptic beetles typically found in leaf litter and soil habitats. The specific epithet 'neglecta' suggests the species may have been overlooked or confused with related taxa prior to its formal description.
Arpedium
Arpedium is a Holarctic genus of rove beetles (Staphylinidae: Omaliinae: Anthophagini) first described by Erichson in 1839. The genus comprises approximately 14 species distributed across the Nearctic and Palaearctic regions, including Europe, Japan, North America, and Central Asia. At least one species, A. cribratum, has been identified as a subnivium specialist—active beneath winter snowpack and rare or inactive during summer. The genus has undergone taxonomic revision, with five new species described recently and several synonymies resolved.
Arpedium schwarzi
Arpedium schwarzi is a rove beetle (Staphylinidae: Omaliinae: Anthophagini) belonging to the Schwarzi species group within the genus Arpedium. It is an eastern North American species with a distribution spanning the eastern United States and southeastern Canada. The species was described by Fauvel in 1878 and has been subject to taxonomic revision, with lectotype designation and redescription in recent studies.
Arrhenopeplus
Arrhenopeplus is a genus of rove beetles in the family Staphylinidae, subfamily Micropeplinae. The genus was established by Blackwelder in 1952. It contains at least one described species, Arrhenopeplus tesserula. Members of this genus are small beetles with the characteristic short elytra typical of rove beetles.
Arthmius bulbifer
Arthmius bulbifer is a species of ant-loving beetle in the rove beetle family Staphylinidae, described by Thomas L. Casey in 1893. The species belongs to the subfamily Pselaphinae, a group of small beetles commonly associated with ant colonies. It is known from scattered records across the south-central United States.
Arthmius globicollis
ant-loving beetle
Arthmius globicollis is a species of ant-loving beetle in the family Staphylinidae. It is known from North America, with records from the eastern and central United States. The species belongs to the subfamily Pselaphinae, a diverse group of small rove beetles frequently associated with ant colonies.
Artochia
Artochia is a genus of rove beetles (Staphylinidae) in the subfamily Omaliinae, tribe Anthophagini. The genus contains two described species: Artochia californica (California) and Artochia productifrons (distributed across British Columbia, Alaska, California, Oregon, Utah, and Washington). It is a small, rarely encountered genus with limited documented observations.
Astenus americanus
Astenus americanus is a species of rove beetle in the family Staphylinidae, subfamily Paederinae. It is a small, poorly known species with limited published information on its biology. The species has been recorded from northeastern North America, with scattered records from Canada and the eastern United States. Like other members of the genus Astenus, it likely inhabits leaf litter and soil environments, though specific ecological details remain undocumented.
Astenus brevipennis
Astenus brevipennis is a species of rove beetle (family Staphylinidae) described by Austin in 1877. It belongs to the subfamily Paederinae, a group characterized by relatively slender bodies and predatory habits. The species name "brevipennis" refers to short wings, a trait common among rove beetles where the hardened forewings (elytra) are reduced and leave most of the abdomen exposed. This species has been recorded from scattered localities across eastern North America.
Astenus cinctus
Astenus cinctus is a species of rove beetle in the family Staphylinidae, first described by Thomas Say in 1831. As a member of the subfamily Paederinae, it belongs to a diverse group of predatory beetles characterized by their elongated bodies and short elytra. The genus Astenus contains numerous species distributed across the Northern Hemisphere, with A. cinctus documented from parts of Canada and the United States.
Astenus discopunctatus
Black-tailed Tomcat Rove Beetle
Astenus discopunctatus is a rove beetle in the family Staphylinidae, commonly known as the Black-tailed Tomcat Rove Beetle. The species was originally described as Paederus discopunctatus by Thomas Say in 1831. It belongs to the subfamily Paederinae, a diverse group of rove beetles often associated with leaf litter and soil habitats. The species has been documented across eastern and central North America.
Atheta alesi
Atheta alesi is a rove beetle species described in 2012 from New Brunswick, Canada. It was among 32 new beetle species identified during a comprehensive survey of the province's coleopteran fauna. The species belongs to the large genus Atheta within the family Staphylinidae.
Atheta frosti
Atheta frosti is a species of rove beetle in the family Staphylinidae, subfamily Aleocharinae. It was described by Bernhauer in 1909. The species is known from scattered records across northern North America, with documented occurrences in Canada and the northeastern United States. As with many aleocharine rove beetles, detailed biological information remains limited.
Atheta longicornis
Atheta longicornis is a rove beetle species in the family Staphylinidae, first described by Gravenhorst in 1802. The species has a broad native distribution across Europe, North Africa, and parts of Asia, and has been introduced to North America (Canada and the United States), Australia, and other regions. As a member of the hyperdiverse genus Atheta, it inhabits various terrestrial habitats where it contributes to decomposition processes. The species is characterized by its relatively long antennae, which inspired its specific epithet.
Atheta modesta
Atheta modesta is a rove beetle (family Staphylinidae) first described by F.E. Melsheimer in 1844. It is a small beetle species found in northeastern North America, with records from both Canada and the United States. The species is part of the diverse genus Atheta, which contains numerous small, often poorly known rove beetles. Recent survey work in New Brunswick, Canada has contributed to knowledge of its distribution.
Atheta novaescotiae
Atheta novaescotiae is a species of rove beetle described in 2006. It inhabits marine seashore environments in eastern North America. The species exhibits adaptations convergent with those of Tarphiota, a genus of rove beetles specialized for similar coastal habitats.
Atheta particula
Atheta particula is a species of rove beetle in the family Staphylinidae, described by Casey in 1910. It belongs to the large and diverse subfamily Aleocharinae, one of the most species-rich lineages within the rove beetles. The species has been documented from limited observations in northeastern North America, with records from Canada and the northeastern United States. Like many aleocharine rove beetles, it is likely associated with decaying organic matter and soil habitats, though specific ecological details remain poorly documented.
Atheta pennsylvanica
Atheta pennsylvanica is a species of rove beetle described by Bernhauer in 1907. It belongs to the large genus Atheta within the subfamily Aleocharinae. The species is known from eastern North America, with records spanning Canada and the northeastern United States. Like other aleocharine rove beetles, it is small-bodied and associated with soil and leaf litter habitats.
Atheta prudhoensis
Atheta prudhoensis is a rove beetle species in the family Staphylinidae, described by Lohse in 1990. The species has been documented across northern North America, including extensive Canadian provinces and territories as well as parts of the northeastern United States. It was among the beetle species contributing to the substantial increase in documented fauna for New Brunswick, Canada, where beetle species counts rose from 1,365 in 1991 to 3,062 by 2016.
Atheta remulsa
Atheta remulsa is a small rove beetle in the family Staphylinidae, described by Casey in 1910. The species is known from a broad geographic range across northern North America, including most Canadian provinces and territories as well as Alaska and New York in the United States. It is one of thousands of beetle species documented in regional biodiversity surveys, including recent work in New Brunswick, Canada.
Atheta ventricosa
Distended Minute Rove Beetle
Atheta ventricosa is a small rove beetle species in the family Staphylinidae, described by Bernhauer in 1907. It is distributed across much of Canada and the northern United States. The species has been recorded from 10 Canadian provinces and territories and 12 US states.
Atinus monilicornis
Atinus monilicornis is a species of ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It is native to North America and has been documented in nests of the ant Paratrechina faisonensis, indicating a myrmecophilous lifestyle. The species was described by Brendel in 1866. Records span multiple states in the eastern and central United States.
Atrecus americanus
Atrecus americanus is a species of rove beetle in the family Staphylinidae, described by Casey in 1906. It belongs to the tribe Othiini within the subfamily Staphylininae. The species is known from eastern North America, with records spanning from southeastern Canada through the northeastern and north-central United States.
Atrecus macrocephalus
Atrecus macrocephalus is a rove beetle in the tribe Othiini, characterized by its relatively large head compared to body proportions. The species occurs across northern North America and has been recorded in both Canada and the western and northeastern United States. As a member of Staphylinidae, it belongs to one of the most diverse beetle families, though specific ecological details for this species remain limited in published literature.
Autalia puncticollis
Autalia puncticollis is a rove beetle species in the family Staphylinidae, described by Sharp in 1864. It belongs to the tribe Autaliini within the subfamily Aleocharinae. The species has a Palearctic native distribution across Europe, Russia, Turkey, and Japan, with introduced populations in western North America including British Columbia, California, and Washington.
Batrisodes
gargoyle beetle, ant-loving beetle
Batrisodes is a genus of myrmecophilous rove beetles in the family Staphylinidae, subfamily Pselaphinae. The genus contains at least 80 described species distributed across North America, Europe, and Asia. Males of many species exhibit highly modified facial structures with horns, spines, shelves, or cavities, earning the group the informal name 'gargoyle beetles.' Species are primarily associated with ants, though specific ecological relationships remain poorly documented for most taxa.
Batrisodes albionicus
Batrisodes albionicus is a species of ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It is distributed in western North America, with records from British Columbia, Alaska, Washington, Oregon, and California. As a member of the genus Batrisodes, it is likely associated with leaf litter habitats and ant colonies, though specific ecological details for this species remain poorly documented.
Batrisodes beyeri
ant-loving beetle
Batrisodes beyeri is a species of ant-loving beetle in the family Staphylinidae. It was described by Schaeffer in 1906 and is found in North America. The species belongs to the subfamily Pselaphinae, a diverse group of small rove beetles often associated with ant colonies.
Batrisodes denticollis
Batrisodes denticollis is a species of ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It is known from scattered localities across the eastern and central United States. Like other members of its genus, it is presumed to inhabit leaf litter and may associate with ants. The species was described by Casey in 1884.
Batrisodes frontalis
Batrisodes frontalis is a species of ant-loving beetle in the family Staphylinidae, first described by LeConte in 1849. It is distributed across northern North America, with records from Canada and the northern United States. Like other members of its genus, it is associated with ant colonies, though specific ecological details remain poorly documented. The species is one of several in the genus Batrisodes found in North America.
Batrisodes mendocino
Batrisodes mendocino is a small rove beetle in the family Staphylinidae, first described by Casey in 1886. It is an ant-loving beetle (myrmecophile) that has been documented in California, USA. The species epithet refers to Mendocino County or the broader Mendocino region of coastal northern California. Like other members of its genus, it is likely associated with ant colonies, though specific ecological details remain poorly documented.
Batrisodes riparius
Batrisodes riparius is a small rove beetle in the subfamily Pselaphinae, commonly known as short-winged mould beetles. It was described by Thomas Say in 1824, making it one of the earlier described species in the genus. Males of this species, like other Batrisodes, possess distinctive facial modifications including horns, spines, or other projections that give the genus its informal nickname "gargoyle beetles." The species occurs across eastern North America in leaf litter habitats.
Batrisodes scabriceps
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.
Batrisodes schaumii
Gargoyle beetle
Batrisodes schaumii is a species of rove beetle in the subfamily Pselaphinae, commonly referred to as a "gargoyle beetle" due to the distinctive facial ornamentation of males. The species was described by Aubé in 1844 and occurs across a broad range in the eastern and central United States. Like other members of its genus, it is presumed to inhabit leaf litter and prey on small arthropods such as mites and collembola.
Batrisodes striatus
Batrisodes striatus is a small rove beetle in the family Staphylinidae, subfamily Pselaphinae. It belongs to a diverse genus of minute beetles that inhabit leaf litter and soil environments. The species was originally described by John Lawrence LeConte in 1849 and is distributed across eastern and central North America.
Beeria
Beeria is a monotypic genus of rove beetles (Staphylinidae) established by Hatch in 1957. Its sole species, Beeria nematocera, occurs in the Nearctic region. The genus exhibits morphological characteristics intermediate between tribes Staphylinini and Quediini, with prothoracic features supporting its placement in Quediini. The type species was originally described as Philonthus nematocerus by Casey in 1915.
Beeria nematocera
Beeria nematocera is a species of rove beetle (family Staphylinidae) originally described as Philonthus nematocerus by Casey in 1915, later transferred to the monotypic genus Beeria by Hatch in 1957. The genus combines morphological characteristics of both Staphylinini and Quediini tribes, though its prothorax morphology supports placement in Quediini. The species is known from western North America.
Belladonna barryi
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 rufipennis
Belonuchus rufipennis is a species of rove beetle (family Staphylinidae) first described by Fabricius in 1801. It is considered a relatively large species within the rove beetle family, with documented body lengths ranging from 4.6 to 9 mm. The species exhibits a notably broad geographic distribution spanning the Americas from Canada to Argentina, with additional populations established in Hawaii and Italy through human introduction.
Beyeria vespa
Beyeria vespa is a species of rove beetle in the family Staphylinidae, first described by Fenyes in 1910. It belongs to the tribe Crematoxenini within the subfamily Aleocharinae. The species is known to occur in North America, with documented records from Arizona, USA. As a member of Staphylinidae, it possesses the characteristic short elytra that leave most of the abdomen exposed.
Bibloporus bicanalis
Bibloporus bicanalis is a small rove beetle in the subfamily Pselaphinae, characterized by reduced elytra and a compact body form typical of ant-loving beetles. The species was described by Casey in 1884 and occurs in eastern North America. As a member of the tribe Trichonychini, it belongs to a diverse group of myrmecophilous beetles that have evolved specialized associations with ants. Records indicate presence in both Canada and the United States, though detailed biological information remains limited.
Biotus
ant-loving beetles
Biotus is a genus of rove beetles (family Staphylinidae) in the subfamily Pselaphinae, characterized by their association with ants. The genus contains a single described species, Biotus formicarius, described by Casey in 1887. Members of this genus are classified as myrmecophiles—organisms that live in association with ant colonies.
Bisnius blandus
A rove beetle in the family Staphylinidae, widely distributed across eastern North America from Canada to the southern United States. The species has been recorded in 57 iNaturalist observations, indicating moderate detection frequency by naturalists. As a member of the tribe Staphylinini and subtribe Philonthina, it belongs to a diverse group of predatory rove beetles.
Bisnius cephalicus
Bisnius cephalicus is a species of rove beetle in the family Staphylinidae, first described by Casey in 1915. It belongs to the subtribe Philonthina within the tribe Staphylinini. The species has been documented in Canada across multiple provinces including Alberta, Manitoba, New Brunswick, Ontario, and Quebec. As a member of the large and diverse genus Bisnius, this species shares the general characteristics of predatory rove beetles, though specific ecological details remain poorly documented in published literature.
Bisnius fimetarius
Bisnius fimetarius is a rove beetle in the family Staphylinidae, originally described from Europe and now known to occur across the Palearctic region. The species has been introduced to eastern Canada. As a member of the genus Bisnius, it belongs to a group of rove beetles often associated with dung and carrion habitats where they function as predators.
Bisnius siegwaldii
Bisnius siegwaldii is a rove beetle (Staphylinidae) in the tribe Staphylinini. It is a medium-sized species with a broad distribution across northern North America and Russia. The species was originally described as Philonthus siegwaldii in 1843. Records indicate presence in boreal and temperate regions of Canada and the United States.
Bledius albonotatus
Bledius albonotatus is a rove beetle in the family Staphylinidae, first described by Mäklin in 1853. The species belongs to the genus Bledius, a group known for association with aquatic or semi-aquatic habitats, particularly sandy shorelines. It occurs along the Pacific coast of North America from Alaska to Mexico. The specific epithet 'albonotatus' refers to white markings on the body.
Bledius analis
spiny-legged rove beetle
Bledius analis is a species of spiny-legged rove beetle described by John Lawrence LeConte in 1863. It belongs to the tribe Blediini within the rove beetle family Staphylinidae. The species is documented across much of North America, with records from Canada and the United States.
Bledius emarginatus
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.