Platyninae
Guides
Agonum albicrus
A ground beetle in the Platyninae subfamily described by Dejean in 1828. Long thought restricted to Mount Vernon, Alabama, but subsequent surveys revealed a much broader distribution across the eastern United States. The species was not studied again until Lindroth's work in 1955 and 1966, then rediscovered in multiple states starting in 2008.
Agonum anchomenoides
Agonum anchomenoides is a species of ground beetle in the subfamily Platyninae. It occurs in Canada and the United States, with records extending to Alaska. As a member of Carabidae, it is a predatory beetle. Specific details regarding its ecology and behavior remain poorly documented in published sources.
Agonum canadense
Agonum canadense is a ground beetle species in the subfamily Platyninae, first described by Goulet in 1969. The species has a restricted distribution in eastern North America, with confirmed records from Ontario, Canada and Pennsylvania, United States. As a member of the large genus Agonum, it shares the general characteristics of small to medium-sized ground beetles with elongated bodies and thread-like antennae.
Agonum collare
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 corvus
Agonum corvus is a species of ground beetle in the subfamily Platyninae, first described by John Lawrence LeConte in 1860. The species is endemic to North America, with records from Alaska, Canada, and the contiguous United States. It is one of approximately 1,200 species in the genus Agonum, a diverse group of small to medium-sized ground beetles found primarily in the Northern Hemisphere.
Agonum crenistriatum
Agonum crenistriatum is a ground beetle in the subfamily Platyninae, described by John Lawrence LeConte in 1863. The species is endemic to North America, with records from the United States and Canada. It belongs to a genus of small to medium-sized predatory beetles commonly found in moist habitats. Very little specific biological information has been published for this particular species.
Agonum cupreum
Cypress Ground Beetle
Agonum cupreum is a ground beetle in the subfamily Platyninae, described by Dejean in 1831. It is known from boreal and northern temperate regions of North America including Alaska, Canada, and the northern United States. As a member of the genus Agonum, it is likely a ground-dwelling predator inhabiting moist or wetland-associated habitats, though specific ecological details for this species remain limited.
Agonum darlingtoni
Darlington's Harp Ground Beetle
Agonum darlingtoni is a small ground beetle in the family Carabidae, subfamily Platyninae. It measures 4.9–5.9 mm in length and is black with iridescent, deeply striated elytra. The species occurs in northeastern North America, including the Northeastern United States and Eastern Canada. It is associated with wet habitats and likely overwinters as an adult.
Agonum extensicolle
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 ferreum
Agonum ferreum is a ground beetle in the subfamily Platyninae, described by Haldeman in 1843. It occurs in the United States and Canada. As a member of the genus Agonum, it belongs to a diverse group of small to medium-sized carabid beetles commonly found in moist habitats. The species is part of the North American fauna of ground beetles, though specific ecological details remain poorly documented.
Agonum nigriceps
Agonum nigriceps is a ground beetle species in the family Carabidae, first described by LeConte in 1846. It occurs across the Holarctic region, with records from North America (including Alaska, Canada, and the contiguous USA), Europe, and Northern Asia (excluding China). As a member of the genus Agonum, it belongs to a diverse group of ground beetles commonly associated with moist habitats.
Agonum piceolum
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.
Agonum placidum
Agonum placidum is a black ground beetle in the Platyninae subfamily. It inhabits woodlands, thickets, and open fields across southern Canada and the northeastern United States. The species has been documented in turfgrass environments where it functions as a generalist predator.
Agonum suturale
sutured harp ground beetle
Agonum suturale is a species of ground beetle in the subfamily Platyninae. It is found in the western half of North America, including Canada, the United States, and Mexico. The species exhibits metallic coloration and is of moderate size for the genus. It is known to occur in turfgrass habitats where it functions as a predator.
Agonum texanum
Agonum texanum is a ground beetle in the family Carabidae, subfamily Platyninae. The species was originally described by LeConte in 1878 as Platynus texanus. It is endemic to Texas, United States, and has been recorded in the GBIF database from both the USA and Mexico. As a member of the genus Agonum, it belongs to a diverse group of ground beetles commonly found in moist habitats.
Atranus
Atranus is a genus of ground beetles in the family Carabidae, established by LeConte in 1847. The genus contains two described species: Atranus pubescens and Atranus ruficollis. These beetles are classified within the subfamily Platyninae and tribe Platynini. Very little is known about the biology or ecology of this genus.
Atranus pubescens
Atranus pubescens is a ground beetle in the family Carabidae. The species is distributed across North America, with records from Canada and the United States. As a member of the subfamily Platyninae, it belongs to a group of carabid beetles typically associated with forest floor habitats. The specific epithet "pubescens" refers to a pubescent (hairy) appearance, though detailed morphological descriptions are limited in available sources.
Calathus advena
Calathus advena is a ground beetle species in the family Carabidae, found in North America. It was described by LeConte in 1846 and has been placed in the genus Acalathus by some taxonomic treatments, though it is currently accepted as Calathus advena. The species is recorded from Alaska, Canada, and the United States.
Calathus ruficollis ruficollis
A flightless ground beetle subspecies distributed across southern California from Santa Barbara County to northern Baja California, including several Channel Islands. The subspecies is distinguished from the southern Sierra Nevada population (C. r. ignicollis) by genetic and geographic separation. Despite being flightless, populations show limited phylogeographic structure across the species' range, suggesting recent population expansion and gene flow across potential geographic barriers.
Olisthopus
Olisthopus is a genus of ground beetles in the family Carabidae, subfamily Platyninae. The genus is native to the Palearctic region, with records from Europe, the Near East, and North Africa. Additional distribution records include Scandinavia (Denmark, Norway, Sweden) and North America (Vermont, USA). As a member of Platyninae, species in this genus are likely associated with ground-dwelling habits in various terrestrial habitats.
Olisthopus micans
Olisthopus micans is a ground beetle species in the family Carabidae, first described by LeConte in 1846. It belongs to the subfamily Platyninae and is native to North America. The genus Olisthopus comprises small to medium-sized ground beetles, though specific ecological details for this species remain poorly documented.
Olisthopus parmatus
Olisthopus parmatus is a ground beetle species in the family Carabidae, first described by Thomas Say in 1823. It is native to North America, with documented occurrence in Canada and the United States. The species includes two recognized subspecies: O. p. parmatus and O. p. iterans. Like other members of the genus Olisthopus, it belongs to the subfamily Platyninae within the diverse ground beetle radiation.
Oxypselaphus
Oxypselaphus is a genus of ground beetles in the family Carabidae, established by Chaudoir in 1843. The genus comprises four recognized species distributed across the Northern Hemisphere, including Europe and North America. Members of this genus are classified within the subfamily Platyninae, tribe Platynini. The genus includes both Palearctic and Nearctic species, with O. obscurus being the most widespread and historically documented species.
Platynus daviesi
Platynus daviesi is a ground beetle species in the family Carabidae. It belongs to the genus Platynus, a group of nocturnal, predatory beetles. The species is known from North America. Information on its biology and ecology remains limited.
Platynus megalops
Platynus megalops is a species of ground beetle in the family Carabidae. It was originally described by Bates in 1882. Current taxonomic consensus treats this name as a synonym of Dyscolus megalops. The species has been recorded from Mexico and the United States.
Platynus parmarginatus
Platynus parmarginatus is a species of ground beetle in the family Carabidae, first described by Hamilton in 1893. It belongs to the subfamily Platyninae, a group of predominantly nocturnal predatory beetles. The species is documented from the United States within North America. Like other Platynus species, it is likely a generalist predator inhabiting forest floor environments.
Rhadine
Rhadine is a genus of ground beetles (Carabidae: Platyninae) described by LeConte in 1846. Many species are troglobitic, restricted to cave habitats in North America, particularly in Texas. Several species, including R. exilis and R. infernalis, are federally listed as endangered due to their restricted ranges and vulnerability to habitat disturbance. The genus is named after a figure from Greek mythology.
Rhadine howdeni
Rhadine howdeni is a species of ground beetle in the family Carabidae, first described by Barr and Lawrence in 1960. It is found in North America, with distribution records from the United States. Like other members of the genus Rhadine, it is likely associated with subterranean or cave habitats, though specific ecological details for this species remain poorly documented. The genus Rhadine includes several federally endangered cave-dwelling species that serve as important indicators of cave ecosystem health.
Rhadine lanei
Rhadine lanei is a species of ground beetle in the family Carabidae, first described by B.Gray in 1937. It belongs to the genus Rhadine, which contains multiple cave-dwelling species found in Texas. The genus includes several federally endangered species that are ecologically dependent on cave cricket populations.
Rhadine lindrothi
Rhadine lindrothi is a species of ground beetle in the family Carabidae, described by Barr in 1965. It is found in North America, with records from Canada and the United States. The genus Rhadine includes several cave-dwelling species that are ecologically specialized, though specific details about R. lindrothi's biology remain poorly documented.
Rhadine perlevis
Rhadine perlevis is a ground beetle in the family Carabidae, described by Casey in 1913. The species is known from Mexico and the southwestern United States. It belongs to a genus containing several cave-dwelling species, though R. perlevis itself is not documented as a cave obligate. The genus Rhadine includes federally endangered species such as R. exilis and R. infernalis, which are restricted to cave systems in central Texas and depend on cave crickets as a food source.
Sericoda
Sericoda is a genus of harpaline ground beetles native to the Holarctic region, with apparent North American origin. These beetles are pyrophilous, meaning they are strongly attracted to burned areas following forest fires. They are generally smaller than related genera such as Agonum. Two species, Sericoda quadripunctata and S. bembidioides, have been extensively studied in boreal forests of Alberta, Canada, where they serve as hosts for phoretic mites of the genus Antennoseius.
Sericoda obsoleta
Sericoda obsoleta is a species of ground beetle in the family Carabidae, occurring in North America. It is one of several species in the genus Sericoda, which are generally associated with riparian and wetland habitats. The species was described by Thomas Say in 1823. Available information on this species is limited, with most sources providing only basic taxonomic and distributional data.
Sphodrini
Sphodrini is a tribe of ground beetles in the family Carabidae, subfamily Platyninae. The tribe comprises more than 30 genera and at least 910 described species. Members of this tribe exhibit considerable diversity in geographic distribution, ranging from the Himalayas and East Asia to Europe and the Middle East. Some genera, such as Pristosia, show complex biogeographic patterns associated with Tertiary Tibetan faunal components and Himalayan uplift.
Synuchus impunctatus
Synuchus impunctatus is a ground beetle species in the family Carabidae, described by Thomas Say in 1823. It belongs to the subfamily Platyninae (sometimes referenced as Harpalinae in older literature) and is part of the diverse genus Synuchus, which contains numerous similar-looking species. The species is documented from Canada and the United States.
Tanystoma
Tanystoma is a genus of ground beetles (Carabidae) in the subfamily Platyninae. It comprises five described species distributed along the Pacific Coast of North America. One species, Tanystoma maculicolle, is commonly known as the tule beetle. The genus was established by Motschulsky in 1845.
Tanystoma cuyama
Tanystoma cuyama is a species of ground beetle in the family Carabidae, described by Liebherr in 1985. The species is endemic to a restricted range in California, USA, specifically associated with the Cuyama Valley region from which it takes its specific epithet. It belongs to the subfamily Platyninae, a group of carabid beetles often associated with riparian and moist habitats. The species is known from limited collection records and iNaturalist observations, indicating it is either genuinely rare or undercollected.
Tanystoma striatum
Tanystoma striatum is a species of ground beetle in the family Carabidae, first described by Dejean in 1828. It belongs to the subfamily Platyninae and is found in North America. The specific epithet 'striatum' refers to striations or grooves, likely describing a characteristic of the elytra. Available information on this species is limited.