Carabidae
Guides
Selenophorus hylacis
Selenophorus hylacis is a species of ground beetle in the family Carabidae. It was described by Thomas Say in 1823. The species occurs in North America, with records from both the United States and Canada. Like other members of its genus, it is a nocturnal ground-dwelling beetle.
Selenophorus maritimus
Selenophorus maritimus is a ground beetle species in the family Carabidae, described by Thomas L. Casey in 1914. The species epithet "maritimus" (meaning "of the sea" or "maritime") suggests an association with coastal or saline environments. As a member of the genus Selenophorus, it belongs to a group of carabid beetles commonly known as seedcorn beetles, many of which are associated with agricultural habitats and moist soils. The species is documented from the United States with distribution records indicating presence in North America.
Selenophorus mexicanus
Selenophorus mexicanus is a ground beetle species in the family Carabidae, described by Putzeys in 1878. It belongs to the genus Selenophorus, a group of nocturnal carabid beetles commonly known as false bombardier beetles or night-stalking tiger beetles. The species is native to Central America and southern Mexico.
Selenophorus nonellipticus
Selenophorus nonellipticus is a ground beetle species in the family Carabidae, described in 2021 from Florida, USA. The species name refers to its non-elliptical body shape, distinguishing it from congeners. It belongs to a genus of nocturnal, soil-dwelling beetles primarily found in the Americas.
Selenophorus palliatus
Selenophorus palliatus is a species of ground beetle in the family Carabidae. It is a nocturnal, flightless beetle distributed across North America, the Bahamas, and Mexico. The species is one of approximately 170 described species in the genus Selenophorus, which is characterized by species adapted to running on the ground surface.
Selenophorus pedicularius
Selenophorus pedicularius is a ground beetle species in the family Carabidae, described by Dejean in 1829. It occurs in Central America and North America, including Canada and the United States. As a member of the genus Selenophorus, it belongs to a group of nocturnal ground beetles often associated with sandy or disturbed habitats. The species is documented in both scientific collections and citizen science observations, though detailed biological studies remain limited.
Selenophorus planipennis
Selenophorus planipennis is a species of ground beetle in the family Carabidae. It is native to North America, with records from Canada and the United States. The species is part of a large genus of ground beetles, though specific ecological details remain poorly documented. Observations are sparse, with only three records on iNaturalist.
Selenophorus rileyi
Selenophorus rileyi is a ground beetle species in the family Carabidae, described in 2021 by Messer and Raber. As a member of the genus Selenophorus, it belongs to a group of carabid beetles commonly known as seedcorn beetles. The species epithet honors Edward Riley, a prolific beetle collector whose contributions to North American coleopterology are recognized through multiple taxa bearing his name.
Selenophorus seriatoporus
Selenophorus seriatoporus is a Neotropical ground beetle in the family Carabidae. Laboratory studies have demonstrated its predatory capacity and evaluated its life cycle on different substrates. Research has examined dietary effects on its consumption, fecundity, and egg viability, with Tenebrio molitor larvae being the most consumed 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.
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.
Serranillus dunavani
Serranillus dunavani is a species of ground beetle in the family Carabidae, described by Jeannel in 1963. It belongs to the subtribe Anillina, a group of minute carabid beetles characterized by reduced eyes and subterranean habits. The species is known from the United States.
Sphaeroderus
Small Snail-eating Beetles
Sphaeroderus is a genus of ground beetles (Carabidae) native to North America. The genus comprises six recognized species, including the notable Schaum's ground beetle (S. schaumii). Members are commonly known as Small Snail-eating Beetles, reflecting their specialized feeding habits. The genus was established by Dejean in 1826 and is classified within the tribe Cychrini.
Sphaeroderus canadensis lengi
Leng's False Snail-eating Beetle
Sphaeroderus canadensis lengi is a subspecies of ground beetle in the family Carabidae, described by Darlington in 1933. It belongs to the tribe Cychrini, a group commonly known as snail-eating beetles due to their specialized feeding habits. The subspecies occurs in North America, with records from Canada and the United States. Like other members of its genus, it is likely associated with forested habitats where its mollusk prey can be found.
Sphaeroderus indianae
Indiana False Snail-eating Beetle
Sphaeroderus indianae is a flightless ground beetle in the tribe Cychrini, known from deciduous forests of the eastern United States. Adults possess reduced wings (brachypterous), restricting dispersal and contributing to its patchy distribution. The species is one of several North American Sphaeroderus with limited range and specific habitat requirements.
Sphaeroderus nitidicollis
Polished Snail-eating Beetle, polished-collar false snail-eating beetle
Sphaeroderus nitidicollis is a species of ground beetle in the family Carabidae, commonly known as the Polished Snail-eating Beetle. It occurs in North America, with subspecies distributed across eastern Canada and the northeastern United States. The species belongs to the tribe Cychrini, a group known for their specialized predation on snails.
Sphaeroderus stenostomus
Small Snail-eating Ground Beetle, narrow-mouthed false snail-eating beetle
Sphaeroderus stenostomus is a ground beetle in the family Carabidae, recognized by its common name "Small Snail-eating Ground Beetle." The species occurs in North America with three recognized subspecies. It belongs to the tribe Cychrini, a group known for specialized predation on snails. The species has been documented in Canada and the United States with over 1,300 observations on iNaturalist.
Sphaeroderus stenostomus stenostomus
Sphaeroderus stenostomus stenostomus is a subspecies of ground beetle in the family Carabidae. It belongs to the tribe Cychrini, a group of carabid beetles characterized by specialized morphological adaptations. The subspecies occurs in North America, with records from Canada and the United States.
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.
Stenocrepis cuprea
Stenocrepis cuprea is a ground beetle (family Carabidae) described by Chaudoir in 1843. It has been recorded in Ontario, Canada, and the United States. The species name 'cuprea' suggests a coppery coloration, though specific morphological details are not well documented in available sources.
Stenocrepis tibialis
Stenocrepis tibialis is a ground beetle species in the family Carabidae, described by Chevrolat in 1834. It has a broad Neotropical distribution extending into the southern United States. The species occurs in diverse habitats ranging from Caribbean islands to South American mainland regions.
Stenolophina
seedcorn beetles (for genus Stenolophus)
Stenolophina is a subtribe of ground beetles in the family Carabidae, comprising approximately 9 genera and at least 50 described species. The subtribe includes the genus Stenolophus, commonly known as seedcorn beetles. Members are small to medium-sized carabids found in diverse terrestrial habitats.
Stenolophus
Seedcorn Beetles
Stenolophus is a large genus of ground beetles in the family Carabidae, comprising over 190 described species distributed across the Palearctic, Nearctic, Near East, and North Africa. Commonly known as seedcorn beetles, several species are significant agricultural pests of corn and other crops. The genus includes both univoltine and potentially multivoltine species depending on geographic location.
Stenolophus binotatus
Stenolophus binotatus is a ground beetle species in the family Carabidae. It occurs in North America, with records from the United States. The species has been documented in blacklighting surveys in Kansas during early spring. It belongs to the genus Stenolophus, commonly known as seedcorn beetles.
Stenolophus carbo
Burned Harp Ground Beetle
Stenolophus carbo is a small ground beetle in the family Carabidae, described by Bousquet in 1993. It belongs to the genus Stenolophus, commonly known as seedcorn beetles or harp ground beetles, which are typically associated with agricultural and disturbed habitats. The species is known from North America, with records from Canada and the United States. As a member of the Carabidae, it is likely predatory or omnivorous, though specific ecological details remain poorly documented.
Stenolophus flavipes
Stenolophus flavipes is a ground beetle species in the family Carabidae, first described by LeConte in 1858. The species epithet "flavipes" refers to yellow legs, a characteristic feature of this beetle. It belongs to the genus Stenolophus, a group of small to medium-sized carabid beetles commonly known as seedcorn beetles or slender ground beetles. Records indicate presence in the United States and North America.
Stenolophus fuliginosus
Sooty Harp Ground Beetle
Stenolophus fuliginosus is a ground beetle in the family Carabidae, commonly known as the Sooty Harp Ground Beetle. It was described by Dejean in 1829 and occurs across North America including Canada and the United States. As a member of the genus Stenolophus, it belongs to a group of small to medium-sized ground beetles often associated with open habitats.
Stenolophus fuscatus
Black-banded Harp Ground Beetle
Stenolophus fuscatus is a ground beetle species in the family Carabidae, commonly known as the Black-banded Harp Ground Beetle. It is a small to medium-sized carabid beetle distributed across North America, with records from both Canada and the United States. The species belongs to the genus Stenolophus, a group often associated with moist or riparian habitats. Despite its wide distribution, it appears to be infrequently encountered based on limited observation records.
Stenolophus humidus
Humid Harp Ground Beetle
Stenolophus humidus is a ground beetle species in the family Carabidae, first described by Hamilton in 1893. It belongs to the genus Stenolophus, a group commonly known as seedcorn beetles. The species is documented from North America, with records from both Canada and the United States. Like other members of its genus, it is likely associated with open, moist habitats.
Stenolophus incultus
Truckee Harp Ground Beetle
Stenolophus incultus is a small ground beetle in the family Carabidae, native to North America. The species has been documented in Canada and the United States. As a member of the genus Stenolophus, it belongs to a group commonly referred to as seedcorn beetles. The species is nocturnally active and has been recorded at artificial light sources.
Stenolophus infuscatus
Stenolophus infuscatus is a species of ground beetle in the family Carabidae. It occurs in North America. As a member of the genus Stenolophus, it belongs to a group of small to medium-sized carabid beetles commonly known as seedcorn beetles, which are frequently encountered in agricultural and disturbed habitats.
Stenolophus lecontei
LeConte's Seedcorn Beetle
Stenolophus lecontei is a ground beetle in the family Carabidae, commonly known as LeConte's Seedcorn Beetle. It is distributed across North America, with records from both the United States and Canada. The species is closely related to Stenolophus comma, with which it shares the common name "seedcorn beetle" and similar ecological associations. Adults have been observed at blacklight in early spring, suggesting nocturnal activity patterns.
Stenolophus limbalis
Pale-bordered Harp Ground Beetle
Stenolophus limbalis is a ground beetle in the family Carabidae, commonly known as the Pale-bordered Harp Ground Beetle. It is a member of the large genus Stenolophus, which contains numerous small to medium-sized carabid beetles. The species is known from North America, with records from both the United States and Canada.
Stenolophus lineola
Lined Stenolophus
Stenolophus lineola is a species of ground beetle in the family Carabidae, commonly known as the Lined Stenolophus. It occurs across North America, with records from Canada and the United States. The species belongs to a genus of small, often brightly marked ground beetles that frequent open, moist habitats. As a member of the tribe Stenolophini, it shares characteristics with other seedcorn beetles that are sometimes associated with agricultural fields and grassy areas.
Stenolophus maculatus
Stenolophus maculatus is a species of ground beetle in the family Carabidae. It is endemic to North America. The species was described by Schaum in 1860 and is currently accepted under that name, though it has also been treated as Acupalpus maculatus. It belongs to the tribe Stenolophini, a group of small to medium-sized ground beetles often associated with moist habitats.
Stenolophus ochropezus
Stenolophus ochropezus is a small ground beetle in the family Carabidae, first described by Thomas Say in 1823. It is one of numerous species in the genus Stenolophus, a group commonly known as seedcorn beetles due to their association with agricultural fields and seed predation. The species is documented across North America with substantial observational records.
Stenolophus plebejus
Red-marked Harp Ground Beetle
Stenolophus plebejus is a small ground beetle in the family Carabidae, commonly known as the Red-marked Harp Ground Beetle. It is native to North America, with records from both the United States and Canada. The species belongs to the genus Stenolophus, a group of beetles often associated with moist habitats and frequently encountered in blacklighting surveys.
Stenolophus rugicollis
Stenolophus rugicollis is a ground beetle in the family Carabidae, described by LeConte in 1859. The genus Stenolophus comprises small, often abundant beetles commonly known as seedcorn beetles due to their frequent occurrence in agricultural fields. Species in this genus are typically spring-active and readily attracted to lights at night. Stenolophus rugicollis is recorded from the United States.
Stenomorphus californicus
Plains Oar-necked Carabid
Stenomorphus californicus is a species of ground beetle in the family Carabidae. It occurs in North America, with records from the United States, Mexico, and Hispaniola. The species was first described by Ménétriés in 1843 under the basionym Agaosoma californicum. Four subspecies are recognized: S. c. californicus, S. c. darlingtoni, S. c. manni, and S. c. rufipes.
Stenomorphus californicus rufipes
Stenomorphus californicus rufipes is a subspecies of ground beetle in the family Carabidae. It is one of two recognized subspecies of Stenomorphus californicus, differentiated from the nominate subspecies by its rufous (reddish) legs. The species complex occurs in western North America, with this subspecies recorded from the southwestern United States and Mexico. Like other members of the genus, it is a small, ground-dwelling beetle associated with terrestrial habitats.
Stenomorphus sinaloae
Stenomorphus sinaloae is a ground beetle in the family Carabidae, described by Darlington in 1936. It belongs to the S. sinaloae species group, which also includes S. penicillatus. The species exhibits allometric trends in prothorax shape and hind tibia proportions, with evolutionary trends associated with burrowing behavior and sexual selection.
Stereocerus rubripes
Stereocerus rubripes is a species of ground beetle in the family Carabidae, characterized by its holarctic distribution spanning Europe, northern Asia, and North America. It inhabits woodland environments and belongs to the subfamily Pterostichinae, a diverse group of predominantly ground-dwelling predatory beetles. The species was first described by Motschulsky in 1860.
Stomis termitiformis
Stomis termitiformis is a species of ground beetle in the family Carabidae, described by Van Dyke in 1926. The specific epithet "termitiformis" suggests a resemblance to termites in form or habit. It is recorded from the western United States and British Columbia, Canada.
Syntomus
Syntomus is a genus of ground beetles in the family Carabidae, subfamily Lebiinae. The genus contains at least 50 described species distributed across the Palearctic region and North America. Members are small to minute beetles, with at least one species (Syntomus lateralis) documented as a host for parasitic mites in the family Podapolipidae.
Syntomus americanus
Syntomus americanus is a species of ground beetle in the family Carabidae. It was originally described as Dromius americanus by Dejean in 1831. The species belongs to the subfamily Lebiinae and is native to North America. Like other members of the genus Syntomus, it is a small ground beetle, though specific details about its biology and ecology remain limited in published literature.
Synuchus dubius
Synuchus dubius is a ground beetle species in the family Carabidae, described by John Lawrence LeConte in 1854. It belongs to the subfamily Platyninae and tribe Sphodrini. The species is known from the United States and North America. Like other members of the genus Synuchus, it is a ground-dwelling beetle, though specific ecological details remain poorly documented in published literature.
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.
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.