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

  • Hypothenemus californicus

    Hypothenemus californicus is a small weevil in the family Curculionidae, first described by Hopkins in 1915. The species is distributed across North America, parts of South America, Africa, and the Galápagos Islands. Like other members of the genus Hypothenemus, it is likely associated with woody plants, though specific ecological details remain poorly documented. The species name references California, indicating the type locality or region of original description.

  • Hypothenemus crudiae

    Hypothenemus crudiae is a species of bark beetle in the family Curculionidae. It has been documented in North America, Europe, and parts of South America and Africa. As a member of the genus Hypothenemus, it belongs to a group of small ambrosia beetles that bore into wood and plant material.

  • Hypothenemus exiguus

    Hypothenemus exiguus is a species of small bark beetle in the family Curculionidae. The species was originally described as Trischidias exigua by Wood in 1986 and is currently recognized as a synonym under the genus Hypothenemus. It has been recorded from Middle America and North America, including the conterminous 48 United States. Little specific information is available regarding its biology or ecology compared to better-known congeners such as the coffee berry borer (H. hampei).

  • Hypulini

    Hypulini is a tribe of false darkling beetles (family Melandryidae) first described by Gistel in 1848. The tribe has a fossil record extending to at least the late Eocene, with the extinct genus Madelinia gedanoposita described from Baltic amber. The tribe's present-day geographic distribution has been mapped in recent taxonomic studies.

  • Ichnea

    checkered beetles

    Ichnea is a genus of checkered beetles in the family Cleridae, established by Laporte in 1838. The genus contains at least four described species distributed across North and South America. Ichnea belongs to the subfamily Korynetinae, a group of clerid beetles characterized by elongated body forms. The genus remains poorly studied, with limited ecological and behavioral data available.

  • Ichnea elongata

    checkered beetle

    Ichnea elongata is a species of checkered beetle in the family Cleridae, first described by Knull in 1939. It is found in North America. As a member of Cleridae, it belongs to a family commonly known as checkered beetles, many of which are predatory on other insects.

  • Idiopidonia

    Idiopidonia is a genus of longhorn beetles (family Cerambycidae) containing a single described species, Idiopidonia pedalis. The genus was established by Swaine and Hopping in 1928 and is classified within the subfamily Lepturinae. It represents a monotypic lineage of flower longhorns with limited documented ecological information.

  • Idiostethus

    flower weevils

    Idiostethus is a genus of flower weevils established by Thomas Lincoln Casey in 1892. The genus comprises at least 20 described species within the family Curculionidae. Members are small beetles associated with flowers.

  • Idolia

    clown beetles

    Idolia is a genus of clown beetles (family Histeridae) comprising six described species, all described by Lewis between 1885 and 1888 except I. laevissima, which was described by LeConte in 1852. The genus belongs to the subfamily Tribalinae and is characterized by features typical of histerid beetles, though specific diagnostic traits for the genus are not well documented in available sources. Species are distributed across North America.

  • Idolus debilis

    Idolus debilis is a click beetle species in the family Elateridae, described by LeConte in 1884. This species belongs to a genus of relatively small, slender click beetles. Like other members of Elateridae, adults possess the characteristic prosternal process that fits into a mesosternal groove, enabling the "clicking" mechanism used to right themselves when overturned. The species has been documented across multiple Canadian provinces, suggesting a northern distribution pattern.

  • Iliotona cacti

    clown beetle

    Iliotona cacti is a species of clown beetle in the family Histeridae. The species was described by John L. LeConte in 1851, originally placed in the genus Hololepta. It is known from North America, with records from the southwestern United States and Mexico. As a member of the tribe Hololeptini, it belongs to a group of histerid beetles associated with decaying plant material.

  • Ilybiosoma seriatum

    Dot-lined Predaceous Diving Beetle

    Ilybiosoma seriatum is a predaceous diving beetle in the family Dytiscidae, known by the common name Dot-lined Predaceous Diving Beetle. The species was described by Thomas Say in 1823. It is found in North America, with records from Canada and the United States.

  • Ilybius quadrimaculatus

    Ilybius quadrimaculatus is a predaceous diving beetle in the family Dytiscidae, first described by Aubé in 1838. The species occurs in North America, with records from Alberta and British Columbia in Canada. As a member of the subfamily Agabinae, it inhabits freshwater aquatic environments where it functions as an active predator.

  • Involvulus hirtus

    leaf rolling weevil

    Involvulus hirtus is a species of leaf rolling weevil in the family Attelabidae, first described by Fabricius in 1802. Leaf rolling weevils are known for their distinctive behavior of cutting and rolling leaves to create protective chambers for their eggs and developing larvae. The species is recorded from North America, though detailed ecological information remains limited.

  • Ipelates latus

    Ipelates latus is a species of primitive carrion beetle in the family Agyrtidae. It is found in North America, with documented occurrences in western Canada and the United States. The species was originally described as Agyrtes latus by Mannerheim in 1852. It belongs to a small family of beetles associated with decomposing organic matter.

  • Ips borealis

    Northern Engraver Beetle

    Ips borealis is a bark beetle species in the family Curculionidae, commonly known as the Northern Engraver Beetle. It is found in North America, with records from Canadian provinces including Alberta, British Columbia, Manitoba, and New Brunswick. As a member of the genus Ips, it belongs to a group of beetles known as engraver beetles that tunnel beneath tree bark, creating distinctive gallery patterns. The species was described by J.M. Swaine in 1911.

  • Isarthrus calceatus

    Isarthrus calceatus is a species of false click beetle in the family Eucnemidae, described by Thomas Say in 1839. The genus Isarthrus contains relatively small, slender eucnemids. Members of this family are distinguished from true click beetles (Elateridae) by their inability to produce the characteristic clicking sound. I. calceatus has been documented in eastern Canada.

  • Ischalia californica

    broad-hipped flower beetle

    Ischalia californica is a species of broad-hipped flower beetle in the family Ischaliidae, described by Van Dyke in 1938. The species is endemic to North America, with records indicating presence in California and surrounding regions. It belongs to a small family of beetles whose members are commonly associated with flowers and vegetation. Available information on this species is limited, with only 8 observations documented in iNaturalist as of the knowledge cutoff.

  • Ischalia costata

    broad-hipped flower beetle

    Ischalia costata is a species of broad-hipped flower beetle in the family Anthicidae (sometimes historically placed in Ischaliidae). It is found in North America, with records from Canada (New Brunswick, Nova Scotia, Ontario) and the United States. The species was described by LeConte in 1866.

  • Ischalia vancouverensis

    broad-hipped flower beetle

    Ischalia vancouverensis is a species of beetle first described by Harrington in 1892. It belongs to the family Ischaliidae, though historically placed in Scraptiidae in some sources. The species is known from western North America, with confirmed records from British Columbia and Alberta in Canada. It is one of relatively few species in the genus Ischalia, which comprises small to medium-sized beetles often associated with flowers.

  • Ischnocerus

    Ischnocerus is a genus of fungus weevils in the family Anthribidae, containing approximately 19 described species. The genus was established by Carl Johan Schoenherr in 1839. As members of the Anthribidae, these beetles are characterized by straight rather than elbowed antennae, distinguishing them from true weevils (Curculionidae). The genus is part of the diverse weevil superfamily Curculionoidea.

  • Ischnomera

    false blister beetles

    Ischnomera is a genus of false blister beetles (family Oedemeridae) containing over 40 described species. These beetles are typically found on flowers, where they feed on pollen. The genus is characterized by relatively soft-bodied adults and is part of the tribe Asclerini within the subfamily Oedemerinae.

  • Ischnomera excavata

    Ischnomera excavata is a species of false blister beetle in the family Oedemeridae. The genus Ischnomera comprises approximately 40 species distributed across the Holarctic region, with most species occurring in the Palearctic. Members of this genus are characterized by their slender, elongate bodies and association with flowers, where adults frequently feed on pollen. The species epithet 'excavata' refers to a morphological feature, likely describing a concave or excavated surface on some body part.

  • Ischnopterapion loti

    Ischnopterapion loti is a small weevil species in the family Apionidae (formerly treated as Brentidae). It is a seed-feeding beetle associated with leguminous plants, particularly Lotus species. The genus Ischnopterapion is part of a group of apionid weevils characterized by their small size and elongated rostrum. The species was described by William Kirby in 1808 and occurs in Europe and parts of North America.

  • Ischnosoma

    Ischnosoma is a genus of rove beetles (Staphylinidae: Tachyporinae) established by Stephens in 1829. The genus is distinguished from the closely related Mycetoporus by specific morphological characters, particularly in the structure of the male genitalia and the form of the pronotum. Ischnosoma contains numerous species distributed across Eurasia, the Americas, and Australia, with particularly high diversity in China, where over 29 species have been documented. North and Central American species have been revised extensively, with 18 species recognized in that region alone.

  • Ischyropalpus cochisei

    antlike flower beetle

    Ischyropalpus cochisei is a small antlike flower beetle in the family Anthicidae, measuring 2.5–3.2 mm. The species was described by Werner in 1973 and is named for its type locality at Cochise Stronghold in Arizona. It occurs across western North America from southwestern Canada through the western United States to Mexico.

  • Ischyropalpus nitidulus

    antlike flower beetle

    Ischyropalpus nitidulus is a small antlike flower beetle in the family Anthicidae, measuring 2.6–3.3 mm in length. The species is widespread across North America from northern Mexico to southern Canada, with a notable absence from the southeastern United States. It has been documented as a predator of mites associated with Monterey pine.

  • Ischyropalpus occidentalis

    antlike flower beetle

    Ischyropalpus occidentalis is a species of antlike flower beetle in the family Anthicidae. The species measures 2.4–2.8 mm in length. It occurs from Central America northward through Mexico to the southwestern United States. Like other members of Anthicidae, it exhibits an ant-mimicking appearance and behavior.

  • Ischyropalpus pinalicus

    Ischyropalpus pinalicus is a species of ant-like flower beetle in the family Anthicidae, first described by Casey in 1895. The species is known from limited records in North America and Middle America, with very few documented observations. As with other members of Anthicidae, it is likely a small, elongate beetle with ant-like appearance, though specific biological details remain poorly documented. The genus Ischyropalpus contains species associated with various terrestrial habitats, but detailed studies of I. pinalicus are lacking.

  • Ischyrus quadripunctatus

    four-spotted fungus beetle

    Ischyrus quadripunctatus, commonly known as the four-spotted fungus beetle, is a species of pleasing fungus beetle in the family Erotylidae. The species is broadly distributed across the Americas, occurring in North America, Central America, South America, and the Caribbean. It is one of two recognized subspecies, with Ischyrus quadripunctatus quadripunctatus (Olivier, 1791) as the nominate form and Ischyrus quadripunctatus chiasticus Boyle, 1954 as a subordinate taxon. Several junior synonyms have been synonymized under this species, including I. graphicus, I. subcylindricus, and I. puncticollis.

  • Isochnus rufipes

    Isochnus rufipes is a weevil species in the family Curculionidae described by LeConte in 1876. The genus Isochnus contains leaf-mining weevils, and the species epithet 'rufipes' refers to reddish legs. Very little published information exists specifically for this species.

  • Isodrusus

    Isodrusus is a genus of weevils (family Curculionidae) in the subfamily Entiminae, described by Sharp in 1911. It belongs to the tribe Tanymecini, a group of broad-nosed weevils characterized by their relatively short rostrums. The genus is poorly documented in public sources, with no observations recorded on iNaturalist and no species-level information readily available. Its taxonomic placement within Tanymecini suggests morphological affinities with other genera in this tribe, which are primarily herbivorous.

  • Isohydnocera

    Isohydnocera is a genus of checkered beetles (family Cleridae) established by E.A. Chapin in 1917. The genus comprises approximately 14 described species distributed primarily in North America. As members of Cleridae, these beetles are likely predatory or scavenging, though species-specific biology remains poorly documented.

  • Isohydnocera brunnea

    Isohydnocera brunnea is a species of checkered beetle in the family Cleridae. The species is endemic to North America. It was described by Chapin in 1917.

  • Isohydnocera tabida

    checkered beetle

    Isohydnocera tabida is a species of checkered beetle in the family Cleridae. It is native to North America, with confirmed records from Canada (Manitoba, Ontario, Québec) and the United States. As a member of the Cleridae, it likely functions as a predator of other insects, though specific ecological details for this species remain poorly documented. The species was first described by John Lawrence LeConte in 1849.

  • Isomira comstocki

    Isomira comstocki is a species of darkling beetle in the family Tenebrionidae, described by Papp in 1956. The species is recorded from western Canada, specifically Alberta and British Columbia. As a member of the genus Isomira, it belongs to a group of small to medium-sized tenebrionid beetles. Information on its biology and ecology is limited.

  • Isomira valida

    Isomira valida is a species of darkling beetle in the family Tenebrionidae, described by Schwarz in 1878. It is a member of the genus Isomira, which comprises small to medium-sized beetles distributed primarily in the Nearctic region. The species has been documented in Ontario, Canada, based on available occurrence records. As with many tenebrionid beetles, detailed natural history information for this species remains limited in published literature.

  • Isomira variabilis

    Isomira variabilis is a species of darkling beetle in the family Tenebrionidae, first described by Horn in 1875. Like other members of this large beetle family, it is likely associated with decaying plant matter and soil habitats. The genus Isomira contains small to medium-sized beetles found primarily in North America. Specific ecological details for this species remain poorly documented in available sources.

  • Isoplastus fossor

    Isoplastus fossor is a species of small carrion beetle in the family Leiodidae, first described by George Henry Horn in 1880. The species is known from eastern North America, with records extending from southern Canada through the eastern and central United States. The specific epithet 'fossor' (Latin for 'digger') suggests fossorial habits, though detailed behavioral observations remain limited. Like other members of Leiodidae, this species is likely associated with decomposing organic matter.

  • Isorhipis bicolor

    Isorhipis bicolor is a species of false click beetle in the family Eucnemidae. Like other members of this family, it belongs to the coleopteran group commonly referred to as "false click beetles," which are morphologically similar to true click beetles (Elateridae) but lack the prosternal process that enables the clicking mechanism. The genus Isorhipis contains multiple species, including the more commonly encountered I. obliqua, with which I. bicolor shares morphological similarities. Specimens of this species have been documented in entomological collections and have contributed to taxonomic revisions of the Eucnemidae family.

  • Isorhipis nubila

    Isorhipis nubila is a species of false click beetle in the family Eucnemidae. It was described as a new species during a revision of the genus Isorhipis. The species was recognized among specimens previously identified as the common Isorhipis obliqua, representing a cryptic species distinguished through detailed taxonomic revision. Specimens of this species have been collected in the Cincinnati, Ohio area.

  • Isorhipis obliqua

    false click beetle

    Isorhipis obliqua is a species of false click beetle in the family Eucnemidae. It is one of the more common species in its genus and has been documented in eastern Canada. The species was described by Thomas Say in 1839. Specimens have contributed to taxonomic revisions of Eucnemidae, helping researchers distinguish cryptic species within this poorly studied beetle family.

  • Isorhipis ruficornis

    false click beetle

    Isorhipis ruficornis is a species of false click beetle in the family Eucnemidae. The species was described by Thomas Say in 1823. It is one of several North American species in the genus Isorhipis, which are being actively revised by entomologists. The specific epithet "ruficornis" refers to the reddish coloration of the antennae.

  • Jonthonota nigripes

    blacklegged tortoise beetle

    Jonthonota nigripes, the blacklegged tortoise beetle, is a tortoise beetle in the family Chrysomelidae. It occurs in North and Central America. The species is associated with morning glories and related plants in the family Convolvulaceae.

  • Judolia swainei

    Judolia swainei is a species of longhorned beetle in the family Cerambycidae, subfamily Lepturinae. It was described by Hopping in 1922. The genus Judolia belongs to the tribe Lepturini, a group of flower-visiting longhorned beetles commonly known as flower longhorns. Like other members of this tribe, adults are likely associated with flowers where they feed on pollen and nectar. The species is known from North America, with records from the United States and Mexico.

  • Knulliana cincta cincta

    Knulliana cincta cincta is a subspecies of longhorn beetle in the family Cerambycidae. It was described by Lingafelter and Horner in 1993. The taxon is currently recognized as a synonym in some databases. It has been documented in North America, with records from California and Mexico. The species has been captured in bait traps using ethanol and wine mixtures in field studies.

  • Korynetinae

    Korynetinae is a subfamily of checkered beetles (Cleridae) within the order Coleoptera. Members of this group are small to medium-sized beetles associated with predatory or scavenging habits. The subfamily is distinguished from other clerid subfamilies by specific morphological features of the antennae and body form. Korynetinae has been documented across multiple continents with greatest diversity in temperate and tropical regions.

  • Kuschelina fimbriata

    A flea beetle in the family Chrysomelidae, distributed across North and Middle America. The species was originally described by Forster in 1771 and has been recorded in 27 iNaturalist observations. As a member of the tribe Alticini, it possesses the enlarged hind femora characteristic of flea beetles, enabling jumping locomotion.

  • Kuschelina laeta

    Pleasing Kuschelina

    Kuschelina laeta is a species of flea beetle in the family Chrysomelidae. The species occurs in Central America and North America. As a member of the tribe Alticini, it possesses the enlarged hind femora characteristic of flea beetles, which enable jumping. The common name "Pleasing Kuschelina" is used on iNaturalist.

  • Kuschelina tenuilineata

    Kuschelina tenuilineata is a species of flea beetle in the family Chrysomelidae. It was described by Horn in 1889. The species is distributed across Central America and North America. As a member of the flea beetle subfamily Alticinae, it possesses enlarged hind femora adapted for jumping.