North-america
Guides
Caenurgia chloropha
Vetch Looper Moth
Caenurgia chloropha, commonly known as the vetch looper moth, is a nocturnal moth species in the family Erebidae. Adults are active from spring through fall with multiple generations per year. The species is distributed across the southeastern United States, northern Mexico, and Cuba, with occasional strays reaching southern Ontario. Larvae feed on leguminous plants including vetch.
Caenurgia togataria
Caenurgia togataria is a moth species in the family Erebidae, first described by Francis Walker in 1862. It is distributed across the southern United States and Mexico. The species has a wingspan of approximately 37 mm. It belongs to the subfamily Erebinae, a diverse group of moths commonly known as underwings and related forms.
Caenurgina
grass moths, loopers
Caenurgina is a genus of moths in the family Erebidae, containing several species commonly known as grass moths or loopers. The genus includes widespread North American species such as the forage looper (C. erechtea), clover looper (C. crassiuscula), and cerulean looper moth (C. caerulea). These moths are associated with open habitats including lawns, meadows, and agricultural fields.
Caenurgina crassiuscula
Clover Looper, Range Grass Moth
Caenurgina crassiuscula, commonly known as the Clover Looper or Range Grass Moth, is a widespread moth species in the family Erebidae. First described by Adrian Hardy Haworth in 1809, it occurs across much of North America from coast to coast, with western populations extending into Alaska, Yukon, and the Northwest Territories. Adults are active for much of the year, with flight periods varying by location from March through November. The species is notable for its larval association with clover and various grasses.
Caerosternus americanus
Caerosternus americanus is a small clown beetle (family Histeridae) originally described by LeConte in 1844. It is distributed across eastern and central North America, with records from Canada (Ontario, Quebec) and numerous U.S. states. The species belongs to the subfamily Tribalinae within the diverse Histeridae, a family commonly known as clown beetles or hister beetles. Like other members of its family, it is likely associated with decaying organic matter, though specific natural history details remain poorly documented.
Cafius luteipennis
Cafius luteipennis is a large rove beetle in the family Staphylinidae, first described by Horn in 1884. The species occurs along the Pacific coast of North America, ranging from British Columbia south to Baja California. As a member of the Philonthina subtribe, it belongs to a group of predatory rove beetles commonly associated with coastal and riparian habitats.
Cafius seminitens
Cafius seminitens is a large rove beetle in the family Staphylinidae, described by Horn in 1884. It occurs in western North America, ranging from British Columbia through California and Oregon to Washington, with records extending to Mexico. The species belongs to the subtribe Philonthina, a group of predatory rove beetles commonly associated with decaying organic matter.
Cainosternum imbricatum
Cainosternum imbricatum is a small beetle species in the family Leiodidae, first described by Notman in 1921. It belongs to a genus of beetles associated with decaying organic matter and fungal habitats. The species is known from limited collection records in the eastern United States. As with many Leiodidae, it likely inhabits moist, decomposing substrates, though specific ecological details remain poorly documented.
Calamomyia
Calamomyia is a genus of gall midges in the family Cecidomyiidae, established by Gagné in 1969. Members of this genus are small flies that induce galls on grasses, particularly in the genus Calamagrostis. The genus is part of the diverse and economically significant gall midge fauna of North America.
Calandrinus grandicollis
Large-necked Flower Weevil
Calandrinus grandicollis is a species of flower weevil in the beetle family Curculionidae. It is known from North America, with confirmed records from Alberta, Canada. The common name "Large-necked Flower Weevil" refers to a presumably enlarged pronotum (the segment behind the head), though detailed morphological descriptions are sparse in available literature. Like other members of Curculionidae, it possesses the characteristic elongated snout (rostrum) typical of weevils.
Calaphis betulaecolens
Common American Birch Aphid
Calaphis betulaecolens, known as the Common American Birch Aphid, is an aphid species in the family Aphididae. It is associated with birch trees (Betula species), as indicated by its specific epithet. The species was first described by Fitch in 1851 and is native to North America. It belongs to the subfamily Calaphidinae, a group specialized on woody hosts in the birch family.
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 opaculus
Calathus opaculus is a species of ground beetle in the family Carabidae. It occurs in North America, with records from Canada and the United States. As a member of the genus Calathus, it belongs to a diverse group of more than 150 species, most of which are ground-dwelling beetles.
Calcaritermes nearcticus
Calcaritermes nearcticus is a species of drywood termite in the family Kalotermitidae. It is native to North America and was first described by Snyder in 1933 as Kalotermes nearcticus before being transferred to the genus Calcaritermes. As a member of Kalotermitidae, it is a lower termite that lacks a true worker caste, with tasks performed by pseudergates. The species is rarely encountered and poorly documented in scientific literature.
Calephelis arizonensis
Arizona Metalmark
Calephelis arizonensis, the Arizona Metalmark, is a butterfly species in the family Riodinidae. It was described by McAlpine in 1971 and is found in North America. The species is assigned Hodges number 4394. Like other metalmarks, it belongs to a group of small, often brightly patterned butterflies that are primarily distributed in the Americas.
Calephelis muticum
Swamp Metalmark
Calephelis muticum, known as the swamp metalmark, is a small riodinid butterfly with a restricted distribution across wetlands of the upper Midwest, Ohio Valley, Ozark Mountains, and parts of Arizona. The species is globally vulnerable (G3) and endangered in Illinois, with small, isolated colonies scattered across ten states. It is distinguished from the northern metalmark (Calephelis borealis) by habitat preference, wing morphology, and host plant associations. Conservation concerns center on habitat loss from wetland conversion, invasive species, pesticides, and fire suppression.
Calephelis virginiensis
little metalmark
Calephelis virginiensis, the little metalmark, is a small metalmark butterfly in the family Riodinidae. It is found in North America. The species was originally described as Erycina virginiensis by Guérin-Méneville in 1831. Like other members of the genus Calephelis, it belongs to a group of butterflies commonly known as metalmarks for the metallic spots often present on their wings.
Calephelis wrighti
Wright's Metalmark
Wright's Metalmark is a species of butterfly in the family Riodinidae, commonly known as the metalmarks. It is found in North America. The species was described by Holland in 1930 and is assigned the MONA/Hodges number 4390. Like other members of the genus Calephelis, it is a small butterfly with distinctive metallic markings. Specific details about its biology and ecology remain limited in available sources.
Calicina
Calicina is a genus of armored harvestmen (Opiliones) in the family Phalangodidae, established by Ubick & Briggs in 1989. The genus contains more than 20 described species. Members of this genus are characterized by their heavily sclerotized body armor, a defining feature of the family Phalangodidae. These harvestmen are part of the suborder Laniatores, which includes the majority of the world's harvestman diversity.
Calicina mariposa
Calicina mariposa is a species of armoured harvestman in the family Phalangodidae. It was originally described as Sitalcina mariposa by Briggs in 1968 before being transferred to the genus Calicina. The species is known from North America. Very little published information exists regarding its biology or ecology.
Calicina sequoia
Calicina sequoia is an armoured harvestman species in the family Phalangodidae, first described by Briggs and Hom in 1966. It was originally placed in the genus Sitalcina before being transferred to Calicina. The species epithet 'sequoia' suggests an association with giant sequoia (Sequoiadendron giganteum) habitat. Like other phalangodid harvestmen, it possesses a heavily sclerotized body with distinctive armoured plates.
Californiulus euphanus
Californiulus euphanus is a millipede species in the family Paeromopodidae, described by Chamberlin in 1938. It is endemic to the Pacific Northwest of the United States, specifically found in northwestern Oregon and southwestern Washington. As a member of the order Julida, it belongs to a group of cylindrical, burrowing millipedes.
Calilena
funnel weavers
Calilena is a genus of North American funnel-web spiders in the family Agelenidae. The genus was established in 1941 and currently contains 21 recognized species distributed primarily across the western and southwestern United States, with some species extending into Mexico. These spiders construct sheet-like webs with funnel-shaped retreats and are characterized by long spinnerets held parallel to each other.
Calledapteryx
scoopwing moths
Calledapteryx is a monotypic genus of scoopwing moths in the family Uraniidae, containing only the species Calledapteryx dryopterata. The genus was established by Augustus Radcliffe Grote in 1868. Some taxonomic authorities treat Calledapteryx as a synonym of Epiplema.
Calleida platynoides
Calleida platynoides is a species of ground beetle in the family Carabidae, described by George Henry Horn in 1882. The genus Calleida comprises approximately 100 species distributed primarily in tropical and subtropical regions, with this species representing one of the North American members. Like other carabid beetles, it is a predatory insect. The species has been documented from both the United States and Mexico.
Calleida punctata
Calleida punctata is a species of ground beetle in the family Carabidae. It is distributed across North America, with records from both the United States and Canada. As a member of the genus Calleida, it belongs to a group of colorful, often metallic ground beetles sometimes referred to as 'searchers.' The species is documented in citizen science platforms with numerous observation records, suggesting it is regularly encountered in appropriate habitats.
Calleida punctulata
Calleida punctulata is a species of ground beetle in the family Carabidae, first described by Chaudoir in 1848. It is found in North America, with distribution records from the United States, Mexico, and Guatemala. The species belongs to the genus Calleida, a group of small to medium-sized predatory beetles. Available information about its biology and ecology remains limited.
Calleida purpurea
Calleida purpurea is a ground beetle in the family Carabidae, distributed across North America. It belongs to the genus Calleida, a group of often colorful predatory beetles. The specific epithet "purpurea" suggests a purple coloration, though detailed documentation of this species remains limited in available sources.
Callibaetis ferrugineus ferrugineus
Callibaetis ferrugineus ferrugineus is a subspecies of small minnow mayfly in the family Baetidae. As a member of the genus Callibaetis, it belongs to a group of mayflies commonly known as pond mayflies or speckled mayflies. The subspecies is distributed in the Nearctic region, with records from North America including Vermont in the United States. Like other Baetidae, it has a relatively short adult lifespan focused on reproduction.
Callibaetis ferrugineus hageni
Callibaetis ferrugineus hageni is a subspecies of mayfly in the family Baetidae. The genus Callibaetis comprises small minnow mayflies found in aquatic habitats across North America. As with other mayflies in this genus, this subspecies has a multi-stage life cycle involving aquatic nymphs and short-lived winged adults. The subspecific epithet honors Hermann Hagen, a prominent 19th-century entomologist.
Callibaetis pallidus
small minnow mayfly
Callibaetis pallidus is a species of small minnow mayfly in the family Baetidae, first described by Banks in 1900. Like other members of the genus Callibaetis, it belongs to a group of mayflies commonly referred to as "small minnow mayflies" due to their streamlined bodies and swimming nymphal behavior. The species is documented from North America, though specific details about its ecology and distribution within this range remain limited in available literature.
Callibaetis pictus
Speckled Dun
Callibaetis pictus is a small minnow mayfly in the family Baetidae, commonly known as the Speckled Dun. It is distributed across Central America and North America, including all of Mexico and the northern and southwestern United States. Like other mayflies, it has an aquatic nymphal stage lasting months to years, followed by a brief adult lifespan measured in hours to days. The species is part of the EPT index (Ephemeroptera, Plecoptera, Trichoptera) used to assess water quality in environmental monitoring.
Callibaetis pretiosus
small minnow mayfly
Callibaetis pretiosus is a small minnow mayfly in the family Baetidae. The species was described by Banks in 1914 and is native to North America. Larvae have been documented in wet-weather pools, with records from the southeastern United States and a northward range extension to Pennsylvania. As a member of Ephemeroptera, it undergoes aquatic nymphal development followed by a brief terrestrial adult stage.
Callicorixa vulnerata
water boatman
Callicorixa vulnerata is a species of water boatman (family Corixidae) found in North America. The species exhibits sexual size dimorphism, with documented research focusing on tarsal asymmetry and trait size variation in relation to fitness. Mid-leg tarsi are used to cling to bottom substrate during underwater feeding. The species was described by Uhler in 1861 and is currently accepted under the genus Callicorixa.
Callidiellum cupressi
cypress longhorn beetle
Callidiellum cupressi is a species of longhorn beetle in the family Cerambycidae, described by Van Dyke in 1923. It belongs to the tribe Callidiini, a group of wood-boring beetles. The specific epithet 'cupressi' suggests an association with cypress (Cupressaceae), though detailed biological information remains limited in available sources. The species is recorded from North America.
Callidium antennatum
Blackhorned Pine Borer
Callidium antennatum is a species of longhorned beetle (family Cerambycidae) described by Newman in 1838. It is commonly known as the Blackhorned Pine Borer. The species is native to North America and has been recorded from both Canada and the United States. Like other members of the genus Callidium, it is associated with coniferous trees, particularly pines.
Callidium frigidum
Callidium frigidum is a species of longhorned beetle in the family Cerambycidae, described by Casey in 1912. The species belongs to the tribe Callidiini within the subfamily Cerambycinae. It is known from northern North America, with records from Canada including Newfoundland, Ontario, and Québec. As a member of the genus Callidium, it is associated with coniferous trees, though specific host associations for this species have not been documented in the available sources.
Callidium pseudotsugae
Callidium pseudotsugae is a species of longhorn beetle (family Cerambycidae) described by Fisher in 1920. The specific epithet 'pseudotsugae' indicates an association with Douglas-fir (Pseudotsuga), suggesting the species likely breeds in this coniferous host. As a member of the tribe Callidiini, it belongs to a group of cerambycids typically associated with coniferous trees. Very little specific information about its biology, distribution, or appearance has been documented in the available literature.
Callidium sempervirens
Callidium sempervirens is a species of longhorn beetle described by Linsley in 1942. It belongs to the tribe Callidiini within the subfamily Cerambycinae. Like other members of the genus Callidium, this species is associated with coniferous trees. The specific epithet sempervirens refers to evergreen vegetation, suggesting a connection to conifer hosts.
Callidium texanum
Black-horned Juniper Borer
Callidium texanum is a longhorned beetle in the family Cerambycidae, described by Schaeffer in 1917. It is commonly known as the Black-horned Juniper Borer. The species belongs to the tribe Callidiini, a group of cerambycids typically associated with coniferous hosts. Like other members of its genus, it is presumed to breed in juniper and related gymnosperms, though specific biological details remain poorly documented in published literature.
Calligrapha alni
Russet Alder Leaf Beetle
Calligrapha alni, the russet alder leaf beetle, is a leaf beetle in the family Chrysomelidae found in North America. The common name indicates an association with alder (Alnus spp.), though specific host plant details are limited in available sources. Like other members of the genus Calligrapha, it likely exhibits high host specificity, a trait characteristic of this northeastern North American genus.
Calligrapha amator
Ontario Calligrapha
Calligrapha amator, commonly known as the Ontario Calligrapha, is a leaf beetle species in the family Chrysomelidae. It was described by W.J. Brown in 1945. The species is found in North America, with confirmed records from Ontario and Québec in Canada.
Calligrapha apicalis
Calligrapha apicalis is a leaf beetle species in the family Chrysomelidae, described by Notman in 1919. It is native to North America, with confirmed records from Ontario and Québec in Canada. Like other members of the genus Calligrapha, it likely exhibits the characteristic dome-like body shape and patterned elytra typical of this group.
Calligrapha dolosa
Calligrapha dolosa is a species of leaf beetle in the family Chrysomelidae, first described by W.J. Brown in 1945. It belongs to a genus known for highly host-specific feeding relationships with particular plant genera. The species is recorded from eastern Canada, specifically Ontario and Québec. Like other members of Calligrapha, it likely exhibits the genus-characteristic dome-shaped body and patterned elytra, though specific diagnostic features for this species remain poorly documented in accessible literature.
Calligrapha floridana
Calligrapha floridana is a species of leaf beetle in the family Chrysomelidae, described by Schaeffer in 1934. The species is found in North America. Like other members of the genus Calligrapha, it likely exhibits the characteristic dome-shaped body and distinctive elytral patterning for which the genus is named. Information specific to this species is limited.
Calligrapha fulvipes
Calligrapha fulvipes is a species of leaf beetle in the family Chrysomelidae, described by Stål in 1859. The genus Calligrapha is characterized by dome-like body shape and distinctive coloration patterns of black with white or red markings. Species within this genus are among the most host-specific phytophagous beetles, with most species relying on a single plant genus as host. The specific host associations and detailed biology of C. fulvipes are not well documented in available sources.
Calligrapha knabi
Calligrapha knabi is a species of leaf beetle in the family Chrysomelidae, first described by Brown in 1940. The species is known from North America, with distribution records from the Canadian provinces of Manitoba, Ontario, and Québec. Like other members of the genus Calligrapha, it exhibits the characteristic dome-like body shape and patterned elytra typical of this group of leaf beetles. Information on specific host plants, appearance details, and life history for this particular species remains limited in available sources.
Calligrapha lunata
Moon-marked Leaf Beetle
Calligrapha lunata, commonly known as the moon-marked leaf beetle, is a leaf beetle in the family Chrysomelidae. The species is found in North America, with records from multiple Canadian provinces including Alberta, British Columbia, and Manitoba. As a member of the genus Calligrapha, it likely exhibits the dome-shaped body form and distinctive elytral patterning characteristic of this group.
Calligrapha multipunctata
common willow calligrapha, Common Willow Calligrapher Beetle
Calligrapha multipunctata is a leaf beetle in the family Chrysomelidae, commonly known as the common willow calligrapha. The species is native to North America and is associated with willow (Salix) as a host plant. Like other members of the genus Calligrapha, it exhibits distinctive elytral patterning. Three subspecies have been described, though one (C. m. suturella) may represent a separate species.
Calligrapha philadelphica
Dogwood Leaf Beetle, dogwood calligrapha
Calligrapha philadelphica is a leaf beetle in the family Chrysomelidae. It is known by the common names dogwood leaf beetle and dogwood calligrapha. The species is found in North America, with records from Canada and the United States. Like other members of the genus Calligrapha, it is associated with dogwood (Cornus spp.) as its host plant.