Bembidiini
Guides
Anillina
A subtribe of minute ground beetles (Carabidae: Bembidiini) characterized by reduced eyes, elongated appendages, and adaptations for subterranean or cryptic habitats. Members exhibit convergent morphological traits associated with life in soil, leaf litter, or caves. The subtribe includes genera distributed across southern Gondwanan landmasses including New Zealand, Madagascar, and Australia, as well as the Northern Hemisphere.
Anillinus balli
Anillinus balli is a small ground beetle in the family Carabidae, described in 2004 by Sokolov and Carlton. It is one of numerous species in the genus Anillinus, a group of minute carabids characterized by reduced eyes and elongated appendages adapted for subterranean life. The species is found in the United States. Like other members of its genus, it is likely adapted to mesic forest habitats with deep leaf litter and soil crevices.
Anillinus barberi
Anillinus barberi is a small carabid beetle in the tribe Bembidiini, described by Jeannel in 1963. It belongs to a genus of minute ground beetles characterized by reduced or absent eyes and elongated appendages adapted for subterranean life. The species is known from the United States and is part of a poorly studied group of beetles with limited published ecological data.
Anillinus chilhowee
Anillinus chilhowee is a small ground beetle (Carabidae) in the tribe Bembidiini, described by Sokolov in 2011. It belongs to the genus Anillinus, a group of minute, eyeless or nearly eyeless beetles adapted to subterranean or deep soil habitats. The species epithet references the Chilhowee region, likely indicating its type locality in the southeastern United States.
Bembidiina
A large subtribe of ground beetles (Carabidae) comprising over 120 genera and more than 3,100 described species. Members are generally small to minute beetles with diverse morphologies across numerous subgenera. The subtribe has a cosmopolitan distribution with major centers of diversity in the Palaearctic and Afrotropical regions. Taxonomic revisions continue to refine species boundaries, synonymies, and subgeneric placements based on male genitalia and elytral microsculpture.
Bembidion mckinleyi
Bembidion mckinleyi is a species of ground beetle in the family Carabidae, first described by Fall in 1926. It is a member of the large genus Bembidion, which contains over 1,400 described species of small to medium-sized carabid beetles. The species is known from both North America and Europe, with three recognized subspecies: B. m. mckinleyi, B. m. carneum, and B. m. scandicum. Like other members of its genus, it is likely associated with moist habitats near water bodies.
Bembidion sordidum
Bembidion sordidum is a species of ground beetle in the family Carabidae. It is distributed across northern North America including Alaska, Canada, and the United States. As a member of the genus Bembidion, it belongs to a large and diverse group of small predatory beetles commonly found in varied terrestrial and riparian habitats.
Elaphropus
Elaphropus is a genus of ground beetles in the family Carabidae, containing at least 370 described species. These small beetles belong to the tribe Bembidiini and are part of the diverse carabid fauna found across multiple continents. The genus was established by Motschulsky in 1839 and represents a significant component of global ground beetle diversity.
Elaphropus anceps
Elaphropus anceps is a small ground beetle in the family Carabidae, subfamily Trechinae. It belongs to a diverse genus of minute carabids often found in moist microhabitats. The species is known from North America, with records from the United States and Canada. Like other members of the tribe Bembidiini, it is likely associated with riparian or wetland edges, though specific ecological details remain poorly documented.
Elaphropus fuscicornis
Elaphropus fuscicornis is a small ground beetle in the family Carabidae, first described by Chaudoir in 1868. The genus Elaphropus belongs to the tribe Bembidiini and comprises diminutive carabids often found in moist microhabitats. This species is known from the United States with records from North America.
Elaphropus quadrisignatus
A small ground beetle in the family Carabidae, originally described as *Elaphrus quadrisignatus* by Duftschmid in 1812 and later transferred to *Elaphropus*. The species is documented from scattered records across Europe and North Africa, with 24 observations reported on iNaturalist. As a member of the tribe Bembidiini, it belongs to a diverse group of small carabids often associated with moist microhabitats.
Micratopus
Micratopus is a genus of small ground beetles in the family Carabidae, established by Casey in 1914. The genus comprises seven described species distributed across the Caribbean, South America, and North America. Members of this genus belong to the tribe Bembidiini and are characterized by their diminutive size, a trait reflected in the genus name. Several species have been described relatively recently, with three new species named in 2021 from the Lesser Antilles.
Micratopus insularis
Micratopus insularis is a species of ground beetle in the family Carabidae, described by Darlington in 1934. The species is endemic to the Lesser Antilles in the Caribbean. As a member of the tribe Bembidiini, it belongs to a diverse group of small carabid beetles often associated with riparian or moist habitats. The genus Micratopus is part of the subtribe Tachyina, which contains numerous species with reduced or modified wings and island-associated distributions.
Mioptachys
Mioptachys is a genus of ground beetles in the family Carabidae, described by Bates in 1882. The genus contains 13 described species distributed across the Americas, from the United States through Central America and into South America. Species in this genus are small carabids, with several exhibiting notable morphological adaptations including reduced or absent eyes in some taxa. The genus is classified within the subtribe Xystosomina of the tribe Bembidiini.
Nothoderis
Nothoderis is a genus of ground beetles (Carabidae) described in 2016 by Boyd and Erwin. It belongs to the tribe Bembidiini within the subfamily Trechinae. The genus is part of the diverse ground beetle fauna, with very few documented observations. As a recently described genus, its species composition and biology remain poorly documented.
Polyderidius
Polyderidius is a genus of ground beetles in the family Carabidae, tribe Bembidiini. It was described by Jeannel in 1962. Members of this genus are part of the diverse tachyine lineage, which includes many small, fast-running beetles. The genus appears to be poorly studied, with limited published information on its species composition and biology.
Polyderis
Polyderis is a subgenus of ground beetles within the genus Tachys, family Carabidae. Established by Motschulsky in 1862, it is classified within the tribe Bembidiini and subtribe Tachyina. The subgenus is part of a diverse group of small carabid beetles.
Porotachys bisulcatus
Porotachys bisulcatus is a small ground beetle in the family Carabidae, described by Nicolai in 1822. It belongs to the tribe Bembidiini, a diverse group of predominantly small carabids often associated with riparian and moist habitats. The species has a notably broad distribution spanning multiple continents, including North America, Europe, Africa, and temperate Asia. Its wide geographic range suggests either strong dispersal capabilities or a generalist ecological profile.
Serranillus
Serranillus is a genus of small ground beetles in the family Carabidae. The genus was established by Barr in 1995 and contains three described species, all endemic to the United States. These beetles belong to the subtribe Anillina, a group characterized by reduced eyes and elongate bodies adapted to subterranean or soil-dwelling habits. The genus is relatively poorly known, with limited ecological and biological data published.
Tachyina
Tachyina is a subtribe of small ground beetles (Carabidae: Trechinae: Bembidiini) established by Motschulsky in 1862. Members include diminutive species typically measuring 2–3 mm in body length. The subtribe contains genera such as Tachyura, characterized by distinctive male genitalic morphology and specific puncture patterns on the elytra. Taxonomic revisions continue to clarify species boundaries and the availability of historical infrasubspecific names.
Tachys
Tachys is a genus of ground beetles in the family Carabidae, subfamily Trechinae, tribe Bembidiini. The genus contains at least 270 described species, making it one of the larger genera within the ground beetles. Species have been documented across multiple continents including North America, Europe, Asia, and India. Members are small, fast-running beetles typically associated with moist microhabitats.
Tachys potomaca
Tachys potomaca is a species of ground beetle in the family Carabidae, described by Erwin in 1981. It belongs to the tribe Bembidiini within the subfamily Trechinae. The species has been recorded in the United States, with distribution data indicating presence in North America. It was originally described under the genus Paratachys, which is now treated as a synonym or subgenus of Tachys. Like other members of the genus, it is likely a small, fast-running beetle associated with ground habitats.
Tachys rhodeanus
Tachys rhodeanus is a species of ground beetle in the family Carabidae. It is found in North America. The species was described by Casey in 1918.
Tachyta
Tachyta is a genus of ground beetles in the family Carabidae, first described by Kirby in 1837. The genus contains more than 30 described species. These beetles are members of the tribe Bembidiini within the subfamily Trechinae.
Tachyta falli
Tachyta falli is a small ground beetle species in the family Carabidae, first described by Hayward in 1900. It belongs to the tribe Bembidiini within the subfamily Trechinae. The species is known from North America, with records from both the United States and Canada. Like other members of its genus, it is likely associated with moist or riparian habitats, though specific ecological details remain poorly documented.