North-america
Guides
Aethes rana
A small tortricid moth described by August Busck in 1907. Adults have a wingspan of 16–18 mm and are active from July to September in the eastern and midwestern United States. The species is characterized by distinctive forewing coloration: a whitish ocherous base strongly suffused with dark fuscous and marked with blackish-brown patterns.
Aethes sonorae
streaked aethes moth
Aethes sonorae is a small tortricid moth with a wingspan of approximately 13 mm. The species was described by Walsingham in 1884 from Sonora, Mexico, and has since been recorded from the southern United States. It belongs to the genus Aethes, a diverse group of small moths commonly known as the aethes moths.
Aethes terriae
Aethes terriae is a small tortricid moth described in 2002. It is known from only three US states in the Great Lakes and mid-Atlantic regions. The species name honors Terri Balogh.
Aethiophysa
Aethiophysa is a genus of crambid moths established by Munroe in 1964. The genus contains approximately 13 described species distributed across North America, the Caribbean, and the Neotropics. Species were previously classified under other genera, with several transferred from Pyralis and related groups. The genus belongs to the subfamily Glaphyriinae within the family Crambidae.
Aethiophysa dualis
Aethiophysa dualis is a crambid moth described from South Texas in 1914. It belongs to the subfamily Glaphyriinae, a group of small to medium-sized moths within the Crambidae family. The species is known from a restricted geographic range in southern North America.
Aethiophysa invisalis
Invisible Crambid
Aethiophysa invisalis is a small moth in the family Crambidae, commonly known as the Invisible Crambid. It was first described by French entomologist Achille Guenée in 1854. The species has a broad distribution across the Americas, with records from eastern North America through Central America to South America. Despite its common name, it is not particularly cryptic; the name likely refers to its small size and inconspicuous appearance among vegetation.
Aethodelphax alatus
Aethodelphax alatus is a planthopper species in the family Delphacidae, originally described by Beamer in 1948 as Delphacodes alatus and later transferred to the new genus Aethodelphax. The species occurs in the midwestern and southeastern United States, where it is associated with native grassland habitats. Like other delphacid planthoppers, it likely feeds on grasses, though specific host associations remain undocumented in available sources.
Aethodelphax megadontus
Aethodelphax megadontus is a planthopper species originally described as Delphacodes megadontus by Beamer in 1951 and later transferred to the new genus Aethodelphax. It is one of eight congeneric species in a genus established for species previously placed in Delphacodes. The species is associated with native grassland habitats in the midwestern United States.
Afrida ydatodes
Dyar's Lichen Moth
Afrida ydatodes, commonly known as Dyar's lichen moth, is a small moth species in the family Nolidae. It was described by Harrison Gray Dyar Jr. in 1913. The species is found in the southeastern United States, with records from Alabama, Florida, Mississippi, North Carolina, and Texas. Adults have a wingspan of approximately 10 mm and can be distinguished from the similar Afrida cosmiogramma by their diffused, irrorated wing pattern with clouded central band edges.
Afrogethes
pollen beetles
Afrogethes is a genus of pollen beetles in the family Nitidulidae, established by Audisio & Cline in 2009. The genus contains at least two described species: Afrogethes canadensis and Afrogethes saevus. Species in this genus are associated with pollen-feeding habits characteristic of many nitidulid beetles.
Afrogethes saevus
pollen beetle
Afrogethes saevus is a species of pollen beetle in the family Nitidulidae. It is found in North America, with confirmed records from the Canadian provinces of Alberta, Manitoba, and Saskatchewan.
Agabetes acuductus
Agabetes acuductus is a small predaceous diving beetle in the family Dytiscidae. It inhabits shaded, vegetated wetlands in North America. The species is associated with wooded pools and cattail ponds, often found in leaf litter. It is one of few species in the genus Agabetes.
Agabinus
Agabinus is a genus of predaceous diving beetles (family Dytiscidae) established by Crotch in 1873. The genus contains two described species: Agabinus glabrellus and Agabinus sculpturellus. Members are found in North America and are classified within the subfamily Agabinae.
Agabus ambiguus
Agabus ambiguus is a predaceous diving beetle in the family Dytiscidae, belonging to the North American endemic ambiguus species group. Adults are active in open water year-round, including throughout winter. The species occurs across the United States and Canada, where it inhabits depositional areas of springs, streams, and stream-fed ponds.
Agabus antennatus
Agabus antennatus is a species of predaceous diving beetle in the family Dytiscidae, first described by Leech in 1939. It is found in North America, with records from Alberta and British Columbia in Canada. As a member of the genus Agabus, it is an aquatic predator inhabiting freshwater environments.
Agabus canadensis
Agabus canadensis is a predaceous diving beetle in the family Dytiscidae, described by Fall in 1922. It is found in North America, with records from Canada (Alberta, British Columbia) and the United States. As a member of the genus Agabus, it is an aquatic predator inhabiting freshwater environments.
Agabus crassipes
Agabus crassipes is a diving beetle species in the family Dytiscidae, described by Fall in 1922. It is native to North America, with records from western Canada including Alberta and British Columbia. As a member of the genus Agabus, it is an aquatic predator inhabiting freshwater environments. The specific epithet 'crassipes' refers to its stout or thick legs.
Agabus falli
Agabus falli is a species of predaceous diving beetle in the family Dytiscidae. It is known from North America, with records from Alberta and Manitoba in Canada. As a member of the genus Agabus, it is an aquatic predator inhabiting freshwater environments. The species was described by Zimmermann in 1934.
Agabus leptapsis
Agabus leptapsis is a predaceous diving beetle in the family Dytiscidae, first described by LeConte in 1878. Originally described as Gaurodytes leptapsis, it is now placed in the genus Agabus. The species is known from western North America, with confirmed records from Alberta and British Columbia, Canada.
Agabus lutosus
River beetle
Agabus lutosus is a predaceous diving beetle in the family Dytiscidae, native to the Pacific coast of North America. It belongs to the lutosus-group of Agabus species, which are restricted to the Cordilleran and Great Plains regions of temperate western North America. The species hybridizes with A. griseipennis in the Pacific Northwest region.
Agabus punctatus
Agabus punctatus is a predaceous diving beetle in the family Dytiscidae, first described by F.E. Melsheimer in 1844. The species is known from North America, though specific details regarding its ecology, habitat preferences, and life history remain poorly documented in the available literature. As a member of the genus Agabus, it is presumed to be aquatic in the adult stage, though this has not been explicitly confirmed for this particular species.
Agabus semipunctatus
Agabus semipunctatus is a predaceous diving beetle in the family Dytiscidae. The species was originally described as Colymbetes semipunctatus by Kirby in 1837 before being transferred to the genus Agabus. It is recorded from North America, with specific distribution records from Alberta and British Columbia in Canada. As a member of the predaceous diving beetles, it is adapted to aquatic habitats.
Agabus smithi
Agabus smithi is a species of predaceous diving beetle in the family Dytiscidae. It is found in North America, with records from Alberta and British Columbia in Canada. As a member of the genus Agabus, it is an aquatic predator, though specific ecological details for this species remain limited in available literature.
Agabus strigulosus
Agabus strigulosus is a species of predaceous diving beetle in the family Dytiscidae. It was first described by Crotch in 1873 under the basionym Gaurodytes strigulosus. The species is found in North America, with records from Alberta and British Columbia in Canada.
Agabus taeniolatus
Agabus taeniolatus is a species of predaceous diving beetle in the family Dytiscidae. It belongs to the large genus Agabus, which contains numerous aquatic beetle species found primarily in the Holarctic region. This species is documented from North America and shares the general ecological characteristics of the genus as an aquatic predator in freshwater habitats.
Agallia quadripunctata
Four-spotted Clover Leafhopper
Agallia quadripunctata is a leafhopper species in the family Cicadellidae, commonly known as the Four-spotted Clover Leafhopper. The species was described by Provancher in 1872, with the basionym Bythoscopus quadripunctatus. It belongs to the subfamily Megophthalminae and tribe Agalliini. The species has been recorded in the iNaturalist database with over 1,700 observations, indicating it is relatively well-documented. Taxonomic databases show some disagreement regarding its generic placement, with GBIF listing it as a synonym under Agalliota quadripunctata while NCBI and Catalogue of Life maintain it in Agallia.
Agalliopsis ancistra
Agalliopsis ancistra is a leafhopper species in the family Cicadellidae, described by Oman in 1970. It belongs to the tribe Agalliini, a group of small leafhoppers often associated with herbaceous vegetation. The species has been documented across multiple states in the central and southwestern United States.
Agalliopsis novella
Agalliopsis novella is a species of leafhopper in the family Cicadellidae, subfamily Megophthalminae. First described by Thomas Say in 1830, this species belongs to a genus of small, wedge-shaped leafhoppers. The species has been recorded across much of North America, with distribution records from both the United States and Canada. As a member of the Megophthalminae, it shares characteristics with other Agalliopsis species, though specific distinguishing features require close examination.
Agallissini
Agallissini is a tribe of longhorn beetles in the subfamily Cerambycinae, established by LeConte in 1873. The tribe contains three genera—Agallissus, Osmopleura, and Zagymnus—with five described species. North American species have been documented with specific host plant associations, particularly with palms.
Agapetus rossi
little black caddisfly
Agapetus rossi is a species of little black caddisfly in the family Glossosomatidae, first described by Denning in 1941. It is found in North America. Like other members of its family, it is a small, dark-colored caddisfly. The Glossosomatidae family, commonly known as saddle-case makers, are characterized by their distinctive larval cases.
Agapostemon obliquus
Oblique Sweat Bee
Agapostemon obliquus is a species of sweat bee in the family Halictidae. It is one of approximately 40-45 species in the genus Agapostemon, which are collectively known as metallic green sweat bees. The species is found in North America and Middle America. Like other members of its genus, it exhibits the characteristic bright metallic green coloration that makes Agapostemon bees visually distinctive and frequently mistaken for cuckoo wasps.
Agapostemon sericeus
silky striped-sweat bee, silky striped sweat bee
Agapostemon sericeus is a solitary sweat bee in the family Halictidae, commonly known as the silky striped-sweat bee. The species is a generalist pollinator that nests in soil, showing little selectivity for nesting sites as long as floral resources are available. It has been documented in moist lawns, garden edges, and unmowed areas. The species is native to North America.
Agapostemon virescens
Bicolored Striped Sweat Bee, bicolored striped-sweat bee
Agapostemon virescens, commonly known as the bicolored striped sweat bee, is a metallic green halictid bee native to North America. It is the official bee of Toronto, Canada. Females nest underground, often forming aggregations where multiple females share a single burrow entrance, though the species is considered solitary rather than truly social. The species exhibits sexual dimorphism in coloration and is a generalist pollinator frequently observed on flowers.
Agaricomorpha
Agaricomorpha is a genus of rove beetles in the family Staphylinidae, subfamily Aleocharinae. It was established by Ashe in 1984 and belongs to the tribe Homalotini and subtribe Gyrophaenina. Members of this subtribe are generally associated with fungi, particularly fleshy mushrooms. The genus is rarely encountered and poorly documented in scientific literature.
Agasphaerops nigra
lily weevil
Agasphaerops nigra, commonly known as the lily weevil, is a broad-nosed weevil in the family Curculionidae. The species was described by Horn in 1876 and is found in western North America, with records from British Columbia, Washington, Oregon, and California. The common name suggests an association with lilies, though specific biological details remain poorly documented in available sources.
Agathidium dubitans
Agathidium dubitans is a species of round fungus beetle in the family Leiodidae, described by Henry Clinton Fall in 1934. The specific epithet "dubitans" is Latin for "doubting," reflecting taxonomic uncertainty at the time of description. Records indicate occurrence in the United States across Arizona, New Mexico, Ohio, Pennsylvania, and Tennessee. The species belongs to the subgenus Revolvens within the genus Agathidium.
Agathidium hamulum
Agathidium hamulum is a species of round fungus beetle in the family Leiodidae, described by Miller and Wheeler in 2005. The specific epithet "hamulum" refers to a small hook, likely describing a morphological feature of this species. Like other members of the genus Agathidium, it is presumed to be associated with fungi and decaying organic matter. The species has been documented in both Canada and the northeastern United States.
Agathidium maculosum
Agathidium maculosum is a species of slime mold beetle in the family Leiodidae, first described by Brown in 1928. The species epithet 'maculosum' refers to spotted or mottled coloration. It belongs to a genus known for feeding on slime molds (Myxomycetes). The species has been recorded in western North America.
Agathidium mollinum
Agathidium mollinum is a species of round fungus beetle in the family Leiodidae, first described by Fall in 1934. It belongs to the subgenus Concinnum within the genus Agathidium. The species occurs in northeastern North America, with records from both Canada and the United States.
Agathidium oniscoides
round fungus beetle
Agathidium oniscoides is a species of round fungus beetle in the family Leiodidae, described by Palisot de Beauvois in 1817. The species is found across eastern and central North America, from Canada through the United States. The specific epithet "oniscoides" derives from the Greek "oniskos" (woodlouse) and "-oides" (resembling), indicating a resemblance to woodlice. Like other members of the genus Agathidium, this species is associated with fungal habitats.
Agathidium repentinum
Agathidium repentinum is a species of round fungus beetle in the family Leiodidae, described by Horn in 1880. It is distributed across northern North America, with records from Canada (Alberta, Manitoba, Newfoundland and Labrador, Yukon) and the United States (Alaska, New Hampshire). The specific epithet "repentinum" derives from Latin, possibly referring to sudden or unexpected characteristics. Like other members of the genus, it is presumed to be associated with fungal habitats, though detailed ecological studies are limited.
Agathidium rusticum
Agathidium rusticum is a species of round fungus beetle in the family Leiodidae, described by Fall in 1934. It belongs to the genus Agathidium, a group of small beetles commonly associated with fungal habitats. The species is known from North America, with records from both Canada and the United States.
Agathilla bradleyi
Agathilla bradleyi is a species of ichneumon wasp in the family Ichneumonidae, described by Viereck in 1905. It belongs to the genus Agathilla, a group of parasitoid wasps within the superfamily Ichneumonoidea. The species is part of the diverse Hymenoptera fauna of North America. Like other ichneumonids, it is presumed to be a parasitoid, though specific host associations and detailed biology remain poorly documented.
Agathomyia pulchella
Agathomyia pulchella is a species of flat-footed fly in the family Platypezidae, described by Johnson in 1908. It belongs to a genus associated with fungus-feeding larvae that develop in polypore bracket fungi. The species is part of a small family of flies whose biology remains poorly documented relative to other dipteran groups.
Agathymus
giant-skippers
Agathymus is a genus of large skipper butterflies described by H.A. Freeman in 1959. The genus comprises approximately 30 species distributed across arid regions of North America from the southwestern United States through Mexico to Costa Rica. Larvae are specialized stem-borers in agave plants, making this genus ecologically dependent on desert agave communities. Species are commonly known as giant-skippers.
Agathymus aryxna
Arizona Giant-Skipper, Arizona giant skipper
Agathymus aryxna is a large skipper butterfly in the family Hesperiidae, first described by Harrison Gray Dyar Jr. in 1905. Commonly known as the Arizona Giant-Skipper, this species belongs to a genus of robust, fast-flying skippers often associated with agave plants. The species is distributed across Central and North America. It is recognized by Hodges number 4132 in the North American moth and butterfly classification system.
Agathymus stephensi
California giant skipper, California Giant-Skipper
Agathymus stephensi, commonly known as the California giant skipper, is a species of giant skipper butterfly in the family Hesperiidae. The species was described by Skinner in 1912 and was originally described as a subspecies of Megathymus neumoegeni before being elevated to full species status. It belongs to the genus Agathymus, which comprises large, robust skippers commonly referred to as giant skippers. The species is found in both Central America and North America, though specific details about its biology and ecology remain limited in published literature.
Agelenopsis kastoni
Agelenopsis kastoni is a species of funnel weaver spider in the family Agelenidae. It is found in the United States. Like other members of its genus, it constructs characteristic funnel-shaped webs and is an active hunter rather than a passive web trapper.
Agelenopsis longistyla
Agelenopsis longistyla is a small funnel weaver spider in the family Agelenidae, first described by Nathan Banks in 1901. It is the smallest species in the genus Agelenopsis when excluding leg measurements. The species is found in the central United States and constructs characteristic funnel-shaped webs with sheet-like platforms.
Agelenopsis naevia
Dark-legged Grass Spider
Agelenopsis naevia is a species of funnel-web spider in the family Agelenidae, commonly known as the Dark-legged Grass Spider. It is found in the United States and Canada. Like other members of its genus, it constructs flat, sheet-like webs with a funnel-shaped retreat where the spider waits to ambush prey. The species was first described by Walckenaer in 1841.