Coleoptera

  • A metallic green tiger beetle at the bottom of an orange plastic jar.
    Tiger beetles are some of the most charismatic insects on Earth: metallic, sharp-eyed, absurdly fast, and every bit as predatory as their name suggests. Come learn how they hunt, why their larvae live like tiny trapdoor monsters in the soil, and what their decline says about the fragile open habitats many other species need too.

Guides

  • Collops limbellus

    collops beetle, soft-winged flower beetle

    Collops limbellus is a species of soft-winged flower beetle in the family Melyridae. It belongs to a genus of predatory beetles frequently encountered on flowers, where they feed on smaller arthropods. The species is documented from western North America, with observations spanning arid and semi-arid regions. Like other members of the genus Collops, it likely plays a role as a generalist predator in agricultural and natural systems.

  • Collops marginicollis

    Collops marginicollis is a species of soft-winged flower beetle in the family Melyridae. The genus Collops comprises predatory beetles frequently associated with flowering plants, where they hunt small arthropods. Adults are typically found on vegetation during the growing season. Like other melyrids, they possess soft, flexible elytra that distinguish them from most beetles.

  • Collops necopinus

    Collops necopinus is a soft-winged flower beetle in the family Melyridae. Like other members of the genus Collops, it is a predatory beetle that feeds on small arthropods. The species has been documented in the southwestern United States, including New Mexico, and is associated with flowering plants where it hunts prey. Collops beetles are recognized as beneficial natural enemies in agricultural systems, particularly in cotton production.

  • Collops quadriguttatus

    Collops quadriguttatus is a species of soft-winged flower beetle in the family Melyridae. Members of the genus Collops are frequently encountered on flowers where they feed on pollen and small arthropods. The specific epithet "quadriguttatus" (meaning "four-spotted") likely refers to a characteristic spotted color pattern on the elytra. Soft-winged flower beetles are generally small, active beetles with soft elytra and are important components of flower-visiting insect communities.

  • Collops reflexus

    Collops reflexus is a species of soft-winged flower beetle in the family Melyridae. Like other members of the genus Collops, it is a predatory beetle found in association with flowering plants. The genus is recognized for its ecological role as a predator of pest insects in agricultural systems, including cotton. Collops reflexus has been documented in field observations on flowers of Gutierrezia sarothrae (broom snakeweed) in northeastern New Mexico, where it occurs alongside other flower-visiting beetles.

  • Collops tibialis

    Collops tibialis is a species of soft-winged flower beetle in the family Melyridae. It belongs to the genus Collops, a group of predatory beetles commonly found in North American habitats. The species is documented in entomological collections and has been recorded in citizen science observations, though detailed biological studies remain limited.

  • Collops versatilis

    Collops versatilis is a soft-winged flower beetle in the family Melyridae, first described by Fall in 1912. The genus Collops comprises predatory beetles commonly found on flowers, where they feed on other insects. C. versatilis has been documented from British Columbia, Canada, with 75 iNaturalist observations recorded. Like other members of the genus, it likely serves as a beneficial predator in agricultural and natural ecosystems, though specific ecological details for this species remain limited.

  • Colon dentatum

    round fungus beetle

    Colon dentatum is a species of round fungus beetle in the family Leiodidae, described by J.L. LeConte in 1853. The species is native to North America and has been recorded across a broad geographic range spanning eastern Canada and much of the eastern and central United States. As a member of the genus Colon, it is associated with fungal habitats, though specific ecological details remain poorly documented.

  • Colon hubbardi

    Colon hubbardi is a species of round fungus beetle in the family Leiodidae, first described by Horn in 1880. The species occurs across North America with documented records in Canada and the United States. It belongs to the genus Colon, which comprises small beetles associated with fungal habitats. The specific epithet honors an individual named Hubbard, though the namesake is not specified in available sources.

  • Colon longitorsum

    round fungus beetle

    Colon longitorsum is a species of round fungus beetle in the family Leiodidae, first described by Peck & Stephan in 1996. It belongs to the genus Colon, a group of small beetles associated with fungal habitats. The species is known from limited records in western North America, specifically California and Oregon. As with other members of Leiodidae, it likely inhabits environments where fungal resources are available.

  • Colon magnicolle

    Colon magnicolle is a species of round fungus beetle in the family Leiodidae, described by Mannerheim in 1853. It is distributed across northern North America, with records from Canada and the northern United States. As a member of the genus Colon, it is associated with fungal habitats, though specific ecological details for this species remain poorly documented.

  • Colon schwarzi

    Colon schwarzi is a species of round fungus beetle in the family Leiodidae. It is known from North America, with records from Canada (Nova Scotia, Ontario, Quebec) and the United States (Arkansas, Indiana, Kansas, Kentucky, Maine, Mississippi, North Carolina, New Hampshire, Oklahoma). As a member of the genus Colon, it is likely associated with fungal habitats, though specific ecological details remain poorly documented.

  • Colon thoracicum

    round fungus beetle

    Colon thoracicum is a species of round fungus beetle in the family Leiodidae. It is found in North America, with records from Canada (Ontario, Quebec) and the United States (Alabama, District of Columbia, Illinois, Indiana, Maine, Michigan, Missouri, North Carolina, New Hampshire, Oklahoma, Pennsylvania, Virginia, West Virginia). As a member of the genus Colon, it is associated with fungal habitats.

  • Colopterus maculatus

    spotted sap beetle

    Colopterus maculatus is a species of sap beetle in the family Nitidulidae. It is found in North America. The species is part of a group of beetles commonly associated with fermenting plant sap, decaying fruit, and fungal growth.

  • Colopterus niger

    Colopterus niger is a small sap beetle in the family Nitidulidae, originally described by Thomas Say in 1823. The species is currently treated as a synonym of Carpophilus niger in some taxonomic databases, reflecting ongoing systematic revisions within the genus. It occurs in North America and belongs to a group of beetles commonly associated with fermenting plant materials and fungal substrates.

  • Colopterus posticus

    Colopterus posticus is a species of sap-feeding beetle in the family Nitidulidae. It occurs in Central America and North America. The species belongs to a genus of small beetles commonly associated with fermenting plant materials and fungal growth.

  • Colusa

    Colusa is a genus of rove beetles (Staphylinidae) in the subfamily Aleocharinae, established by Thomas L. Casey in 1885. The genus belongs to the tribe Oxypodini and is part of the diverse and species-rich rove beetle family, which is characterized by abbreviated elytra that expose most of the abdomen. Little is known about the biology or species diversity of this genus.

  • Conibiosoma elongatum

    Conibiosoma elongatum is a species of darkling beetle (family Tenebrionidae) described by Horn in 1870. The genus Conibiosoma contains few species and is poorly documented in the literature. Records indicate limited observational data, with only seven observations documented on iNaturalist. The species epithet "elongatum" suggests an elongated body form relative to congeners.

  • Conibius

    Conibius is a genus of darkling beetles (family Tenebrionidae) established by John Lawrence LeConte in 1851. The genus occurs across the Nearctic, Neotropic, and Oceania biogeographic realms, with 116 iNaturalist observations indicating moderate documentation. As a member of Tenebrionidae, these beetles are characterized by hardened forewings (elytra) and generally cryptic habits. The genus lacks significant economic importance and has received limited dedicated study.

  • Conibius gagates

    Conibius gagates is a darkling beetle species in the family Tenebrionidae, described by Horn in 1870. It is native to Mexico and belongs to a genus of small to medium-sized beetles typically associated with arid and semi-arid environments. The specific epithet "gagates" derives from Latin, meaning "jet-black" or referring to lignite coal, suggesting a dark coloration. As with many tenebrionid beetles, it likely occupies ground-dwelling ecological niches in dry habitats.

  • Conibius opacus

    Conibius opacus is a species of darkling beetle in the family Tenebrionidae, first described by John Lawrence LeConte in 1866. The species is known from Mexico and belongs to a genus of tenebrionid beetles. As with many darkling beetles, specific details about its biology and ecology remain poorly documented in the available literature.

  • Conibius rotundicollis

    Conibius rotundicollis is a species of darkling beetle in the family Tenebrionidae, described by Linell in 1899. The species name refers to its rounded pronotum. It is native to Mexico and belongs to a genus of small to medium-sized tenebrionid beetles.

  • Conibius seriatus

    Conibius seriatus is a species of darkling beetle in the family Tenebrionidae, described by John Lawrence LeConte in 1851. The species is recorded from Mexico, though detailed biological information remains sparse. It belongs to a genus within a family characterized by drought-adapted beetles often found in arid and semi-arid environments.

  • Conibius uniformis

    A darkling beetle species described by Casey in 1890. The specific epithet 'uniformis' refers to the species' uniform coloration. It is one of several species in the genus Conibius, a group of small to medium-sized tenebrionid beetles found in arid and semi-arid regions of North America. The species is documented from Mexico based on collection records.

  • Conisattus

    Conisattus is a genus of darkling beetles (family Tenebrionidae) described by Casey in 1895. The genus is poorly documented, with minimal published information on its biology and morphology. It appears to be restricted to the Nearctic region. The genus contains few known species and has received limited taxonomic study.

  • Conoecus ovipennis

    Conoecus ovipennis is a species of darkling beetle in the family Tenebrionidae. The genus Conoecus is part of a diverse family of beetles commonly known as darkling beetles or flour beetles, though many species are associated with decaying wood and forest habitats. Very little specific biological information has been published for this particular species.

  • Cononotus

    Cononotus is a genus of beetles in the family Pyrochroidae, subfamily Agnathinae, established by J.L. LeConte in 1851. The genus includes species such as Cononotus lanchesteri, which has been recorded in the Pacific Northwest region of North America. Members of this genus are part of the fire-colored beetle group, though they belong to the less commonly encountered subfamily Agnathinae.

  • Conoplectus

    Conoplectus is a genus of ant-loving beetles in the family Staphylinidae, established by Brendel in 1888. The genus contains five described species, all described or redescribed by Carlton in 1983 except for C. canaliculatus, which was originally described by LeConte in 1849. Members of this genus belong to the subfamily Pselaphinae, a diverse group of small rove beetles commonly associated with ants and other social insects.

  • Conotrachelus affinis

    Hickory Nut Curculio

    Conotrachelus affinis, commonly known as the hickory nut curculio, is a species of true weevil in the family Curculionidae. The species is native to North America and is associated with hickory trees as suggested by its common name. Like other members of the genus Conotrachelus, it likely exhibits the characteristic elongated snout (rostrum) typical of weevils, with mouthparts at the tip.

  • Conotrachelus anaglypticus

    cambium curculio

    Conotrachelus anaglypticus, commonly known as the cambium curculio, is a species of true weevil in the family Curculionidae. It is native to North America, with confirmed records from Canada and the United States. The species is a member of the genus Conotrachelus, which includes several economically significant fruit pests.

  • Conotrachelus belfragei

    White-cheeked Curculio

    Conotrachelus belfragei is a species of true weevil in the family Curculionidae. It is native to North America and is known by the common name White-cheeked Curculio. The species was described by Lec. in 1876. Beyond basic taxonomic placement and geographic occurrence, specific biological details remain poorly documented in the available literature.

  • Conotrachelus cognatus

    Conotrachelus cognatus is a species of true weevil in the beetle family Curculionidae. It is native to North America and was described by John Lawrence LeConte in 1878. The species belongs to the large genus Conotrachelus, which includes numerous weevil species associated with various plants. Specific biological details about this species remain poorly documented in the available literature.

  • Conotrachelus duplex

    Conotrachelus duplex is a species of weevil in the family Curculionidae, described by Thomas L. Casey in 1892. It belongs to the genus Conotrachelus, a group of snout beetles that includes several economically important fruit pests such as the plum curculio (C. nenuphar). The species is provisionally accepted in taxonomic databases and is recorded from North America. Very little specific biological information is available for this particular species.

  • Conotrachelus echinatus

    Conotrachelus echinatus is a species of weevil in the family Curculionidae, described by Horn in 1895. It belongs to a genus containing several economically significant fruit pests, though specific information about this species remains limited. The genus Conotrachelus is best known for the plum curculio (C. nenuphar), a major pest of stone and pome fruits in North America.

  • Conotrachelus fissunguis

    Hibiscus Curculio

    Conotrachelus fissunguis is a species of true weevil in the family Curculionidae, commonly known as the Hibiscus Curculio. It is native to North America and is one of approximately 150 species in the genus Conotrachelus. The species was first described by John Lawrence LeConte in 1876. Unlike the well-studied congener C. nenuphar (plum curculio), which is a major agricultural pest, detailed ecological and biological information specific to C. fissunguis remains limited in published literature.

  • Conotrachelus floridanus

    Coma Curculio

    Conotrachelus floridanus is a species of true weevil in the beetle family Curculionidae. It was described by Fall in 1913. The species is found in North America and has been assigned the common name "Coma Curculio" in some sources. As a member of the genus Conotrachelus, it belongs to a group of weevils that includes several economically important fruit pests, though specific information about this particular species remains limited.

  • Conotrachelus retusus

    Conotrachelus retusus is a weevil species in the family Curculionidae, described by Fall in 1929. It is a member of the genus Conotrachelus, which includes several economically significant fruit pests. The species is provisionally accepted in taxonomic databases and is known from North America. Available information on this species is limited compared to better-studied congeners such as C. nenuphar (plum curculio).

  • Conotrachelus rubescens

    Red-shouldered Brushholly Curculio

    Conotrachelus rubescens is a species of true weevil in the beetle family Curculionidae, described by Schaeffer in 1904. It is native to North America and is commonly known as the Red-shouldered Brushholly Curculio. As a member of the genus Conotrachelus, it belongs to a group of weevils that includes several economically significant fruit pests.

  • Conotrachelus schoofi

    Pecan Shoot Curculio

    Conotrachelus schoofi is a weevil species in the family Curculionidae that feeds on pecans. Adults cause premature nut drop by feeding on pecan nutlets. Larvae develop within the nuts, completing their growth inside the shuck. The species has one generation per year, with adults emerging in spring and overwintering in diapause.

  • Conotrachelus serpentinus

  • Conotrachelus similis

    Bumelia Curculio

    Conotrachelus similis is a species of true weevil in the beetle family Curculionidae, described by Boheman in 1837. It is commonly known as the Bumelia Curculio. The species is native to North America and is provisionally accepted in taxonomic databases. As a member of the large genus Conotrachelus, it shares the characteristic elongated snout typical of weevils in this group.

  • Contacyphon

    marsh beetles

    Contacyphon is a genus of marsh beetles in the family Scirtidae, comprising over 100 described species. The genus was established to accommodate species formerly placed under the invalid name Cyphon. These beetles are associated with moist habitats and are frequently encountered at artificial lights.

  • Contacyphon americanus

    Contacyphon americanus is a species of marsh beetle in the family Scirtidae. The species is known from North America, where it occurs in marsh and wetland habitats typical of the genus. Like other scirtid beetles, it is associated with moist environments and has aquatic or semi-aquatic larval stages.

  • Contacyphon cooperi

    Contacyphon cooperi is a small marsh beetle in the family Scirtidae, a group of aquatic and semi-aquatic beetles commonly known as marsh beetles or minute marsh beetles. The species was described by Schaeffer in 1931 and is documented from North America. Scirtidae larvae are typically found in moist or aquatic habitats, often in decaying vegetation or mud, while adults are frequently collected at lights or in vegetation near water.

  • Contacyphon nebulosus

    Contacyphon nebulosus is a species of marsh beetle in the family Scirtidae. Marsh beetles are small, often overlooked beetles associated with moist habitats. The genus Contacyphon is part of a group formerly classified under Cyphon, with species distinguished by subtle morphological features. Adults are typically found in vegetation near water or in persistently damp environments.

  • Contacyphon neopadi

    Contacyphon neopadi is a species of marsh beetle in the family Scirtidae, a group of small beetles commonly associated with moist or aquatic habitats. The species was described by Klausnitzer in 1976 and is known from North America. Marsh beetles in this genus are typically encountered near water or in humid microhabitats.

  • Contacyphon padi

    Contacyphon padi is a species of marsh beetle in the family Scirtidae. It has been recorded across Europe and Northern Asia, excluding China, with additional observations in North America including Canada and the United States. The species is part of a genus of small beetles associated with moist habitats.

  • Contacyphon perplexus

    marsh beetle

    Contacyphon perplexus is a species of marsh beetle in the family Scirtidae, found in North America. The species was described by Blatchley in 1914. As a member of Scirtidae, it belongs to a family of small beetles commonly associated with moist or aquatic habitats, though specific ecological details for this species remain limited.

  • Contacyphon punctatus

    Contacyphon punctatus is a species of marsh beetle in the family Scirtidae. Members of this family are small beetles commonly found in moist habitats near water. The genus Contacyphon is characterized by small body size and association with aquatic or semi-aquatic environments. The specific epithet "punctatus" suggests the presence of punctate (dotted) surface sculpturing on the body.

  • Copelatinae

    copelatine diving beetles

    Copelatinae is a subfamily of predaceous diving beetles (Dytiscidae) comprising seven genera: Agaporomorphus, Aglymbus, Copelatus, Exocelina, Lacconectus, Liopterus, and Madaglymbus. The genus Copelatus is the largest with approximately 470 described species worldwide, showing greatest diversity in tropical South America, Africa, and Southeast Asia. Members are predominantly aquatic, though some species have colonized highly ephemeral habitats including forest floor depressions. The subfamily exhibits remarkable morphological diversity and includes phylogenetically isolated lineages such as the South African genus Capelatus.