North-america
Guides
Atherix pachypus
watersnipe fly
Atherix pachypus is a species of watersnipe fly in the family Athericidae. The species was described by Bigot in 1887. Watersnipe flies in this genus are generally associated with aquatic or semi-aquatic habitats.
Atherix variegata
watersnipe fly
Atherix variegata is a species of watersnipe fly in the family Athericidae. It is found in Canada and the United States. The species was described by Francis Walker in 1848. Like other members of the family Athericidae, adults are associated with aquatic or semi-aquatic habitats.
Atheta frosti
Atheta frosti is a species of rove beetle in the family Staphylinidae, subfamily Aleocharinae. It was described by Bernhauer in 1909. The species is known from scattered records across northern North America, with documented occurrences in Canada and the northeastern United States. As with many aleocharine rove beetles, detailed biological information remains limited.
Atheta longicornis
Atheta longicornis is a rove beetle species in the family Staphylinidae, first described by Gravenhorst in 1802. The species has a broad native distribution across Europe, North Africa, and parts of Asia, and has been introduced to North America (Canada and the United States), Australia, and other regions. As a member of the hyperdiverse genus Atheta, it inhabits various terrestrial habitats where it contributes to decomposition processes. The species is characterized by its relatively long antennae, which inspired its specific epithet.
Atheta modesta
Atheta modesta is a rove beetle (family Staphylinidae) first described by F.E. Melsheimer in 1844. It is a small beetle species found in northeastern North America, with records from both Canada and the United States. The species is part of the diverse genus Atheta, which contains numerous small, often poorly known rove beetles. Recent survey work in New Brunswick, Canada has contributed to knowledge of its distribution.
Atheta particula
Atheta particula is a species of rove beetle in the family Staphylinidae, described by Casey in 1910. It belongs to the large and diverse subfamily Aleocharinae, one of the most species-rich lineages within the rove beetles. The species has been documented from limited observations in northeastern North America, with records from Canada and the northeastern United States. Like many aleocharine rove beetles, it is likely associated with decaying organic matter and soil habitats, though specific ecological details remain poorly documented.
Atheta pennsylvanica
Atheta pennsylvanica is a species of rove beetle described by Bernhauer in 1907. It belongs to the large genus Atheta within the subfamily Aleocharinae. The species is known from eastern North America, with records spanning Canada and the northeastern United States. Like other aleocharine rove beetles, it is small-bodied and associated with soil and leaf litter habitats.
Atheta remulsa
Atheta remulsa is a small rove beetle in the family Staphylinidae, described by Casey in 1910. The species is known from a broad geographic range across northern North America, including most Canadian provinces and territories as well as Alaska and New York in the United States. It is one of thousands of beetle species documented in regional biodiversity surveys, including recent work in New Brunswick, Canada.
Atheta ventricosa
Distended Minute Rove Beetle
Atheta ventricosa is a small rove beetle species in the family Staphylinidae, described by Bernhauer in 1907. It is distributed across much of Canada and the northern United States. The species has been recorded from 10 Canadian provinces and territories and 12 US states.
Athetini
Athetini is a large tribe of rove beetles (Staphylinidae: Aleocharinae) comprising at least 50 genera and 430 described species. The tribe is taxonomically complex, with ongoing research into its limits and internal relationships; it was not recovered as monophyletic in molecular phylogenetic studies. Multiple independent origins of coastal habitat specialization have been documented within the tribe.
Atholus americanus
clown beetle
Atholus americanus is a small clown beetle (family Histeridae) native to North America. Adults measure 2.7–4.2 mm in length. The species is distinguished from congeners by its united 5th dorsal and sutural striations and the complete absence of subhumeral striations. It occupies a geographic range extending from the eastern foothills of the Rocky Mountains eastward to central Quebec, with its southern distribution limits remaining poorly documented.
Atholus falli
Atholus falli
Atholus falli is a species of clown beetle in the family Histeridae, first described by Bickhardt in 1912. It is known from North America with documented records across Canada and the United States. As a member of Histeridae, it belongs to a group of beetles commonly associated with decaying organic matter and carrion.
Atholus relictus
clown beetle
Atholus relictus is a species of clown beetle in the family Histeridae. It is found in North America, with records from Canada and the United States. The species was described by Marseul in 1870. As a member of Histeridae, it belongs to a group of beetles commonly associated with decomposing organic matter.
Atholus sedecimstriatus
clown beetle
Atholus sedecimstriatus is a species of clown beetle in the family Histeridae, described by Thomas Say in 1825. The species is native to North America and has been documented in both the United States and Canada. It belongs to a genus of small histerid beetles commonly associated with decaying organic matter. The specific epithet 'sedecimstriatus' (Latin for 'sixteen-striped') likely refers to elytral striation patterns characteristic of the species.
Athous fossularis
Grooved Click Beetle
Athous fossularis is a click beetle species in the family Elateridae, commonly known as the Grooved Click Beetle. It is a member of the large genus Athous, which contains numerous similar-looking species distributed primarily across the Northern Hemisphere. The species was described by John Lawrence LeConte in 1853 and is known from eastern Canada.
Athysanella castor
Athysanella castor is a leafhopper species in the family Cicadellidae, described by Hamilton in 2002. The species name "castor" (Latin for beaver) may allude to its association with riparian or wetland habitats, though this connection is speculative. It belongs to a genus of small, active insects that feed on plant sap using piercing-sucking mouthparts.
Athysanella macleani
Athysanella macleani is a species of leafhopper in the family Cicadellidae, first described from Alaska and the Yukon Territory in 1985. It belongs to the genus Athysanella, a group of small, slender leafhoppers in the subfamily Athysaninae. The species is known from a limited number of specimens collected in northern North America.
Athysanella secunda
Athysanella secunda is a species of leafhopper in the family Cicadellidae, first described by Blocker and Wesley in 1985. It belongs to the genus Athysanella, which comprises leafhoppers primarily associated with grassland habitats in North America. The species is documented from Saskatchewan, Canada, though detailed ecological and biological information remains limited in published literature.
Atimia confusa
Small Cedar Borer, Small Cedar-bark Borer
Atimia confusa is a species of long-horned beetle in the family Cerambycidae. It is native to North America and has been documented in both Canada and the United States. The species was first described by Thomas Say in 1827. It belongs to the small tribe Atimiini within the diverse cerambycid family.
Atimiini
Atimiini is a small tribe of longhorn beetles (Cerambycidae) within the subfamily Spondylidinae. The tribe contains two genera: Atimia, with seven described species distributed across North America, and Paratimia, represented by a single species. These beetles are characterized by their association with coniferous habitats.
Atinus
ant-loving beetles
Atinus is a genus of myrmecophilous (ant-loving) rove beetles in the family Staphylinidae, subfamily Pselaphinae. The genus was established by Horn in 1868 and contains at least two described species: Atinus brevicornis and Atinus monilicornis. These beetles are small, compact rove beetles associated with ant colonies.
Atlanticus americanus
American shieldback, American shield-bearer
Atlanticus americanus, commonly known as the American shieldback or American shield-bearer, is a species of shield-backed katydid in the family Tettigoniidae. It is found in North America. The species was first described by Saussure in 1859 and includes two recognized subspecies: Atlanticus americanus americanus and Atlanticus americanus hesperus.
Atlanticus davisi
Davis's shieldback, Davis's shield-bearer
Atlanticus davisi is a species of shield-backed katydid in the family Tettigoniidae. It is commonly known as Davis's shieldback or Davis's shield-bearer. The species is found in North America, with confirmed records from Virginia. As a member of the subfamily Tettigoniinae, it belongs to a group characterized by their flattened, shield-like pronotum that extends over the abdomen.
Atlanticus gibbosus
robust shieldback, robust shield-bearer
Atlanticus gibbosus, commonly called the robust shieldback or robust shield-bearer, is a species of shield-backed katydid in the family Tettigoniidae. It is found in the southeastern United States, with records from Alabama, Florida, Georgia, and South Carolina. The species is part of the subfamily Tettigoniinae and tribe Drymadusini, characterized by the shield-like pronotum that extends backward over the abdomen.
Atlanticus glaber
Atlanticus glaber is a North American katydid (family Tettigoniidae) in the tribe Drymadusini. The species is known from Florida and has been documented as prey of the Great Golden Digger wasp (Sphex ichneumoneus). Like other members of the genus Atlanticus, it belongs to a group of shield-backed katydids with terrestrial habits.
Atomaria lederi
silken fungus beetle
Atomaria lederi is a species of silken fungus beetle in the family Cryptophagidae, described by Johnson in 1970. The species has a broad geographic distribution spanning three continents: Europe and Northern Asia (excluding China), North America, and Southern Asia. As a member of the Cryptophagidae, it belongs to a family commonly known as silken fungus beetles due to their association with fungal growth and the silky secretions produced by some species.
Atomaria lineola
Atomaria lineola is a small beetle species in the family Cryptophagidae, known as silken fungus beetles. The genus Atomaria is recognized by the distinctive 'tuning fork' branching pattern in one of the wing veins. This species was described by Notman in 1920 and occurs in North America. Members of this genus are typically associated with fungi and decaying organic matter.
Atomaria stricticollis
Atomaria stricticollis is a species of silken fungus beetle in the family Cryptophagidae. The species was described by Casey in 1900. It is recorded from North America, with specific distribution records from British Columbia, Canada. The genus Atomaria comprises small beetles typically associated with fungal habitats.
Atomaria testacea
silken fungus beetle
Atomaria testacea is a species of silken fungus beetle in the family Cryptophagidae. It has a broad geographic distribution spanning Africa, Europe and Northern Asia (excluding China), and North America. The species was described by Stephens in 1830. As a member of the Cryptophagidae, it is associated with fungal habitats, though specific ecological details for this species remain limited in the available literature.
Atomosia
Micropanthers
Atomosia is a genus of robber flies (family Asilidae) established by Macquart in 1838. The genus contains at least 60 described species, commonly referred to as "Micropanthers." Members are predatory flies that capture other insects in flight. The genus is distributed in North America, with records from the United States including Vermont.
Atomosia arkansensis
Atomosia arkansensis is a species of robber fly (Asilidae) described by Barnes in 2008. The species name indicates its association with Arkansas, where it was first documented. As a member of the diverse Asilidae family, it is a predatory fly, though specific details of its biology remain limited in published literature.
Atopetholus angelus
Atopetholus angelus is a millipede species in the family Atopetholidae, described by Chamberlin in 1920. It belongs to the order Spirobolida, a group of large, cylindrical millipedes commonly known as giant millipedes or round-backed millipedes. The species has been recorded in North America, with specific locality data indicating presence in Louisiana, United States. Very little detailed biological information has been published for this species.
Atractelmis wawona
Wawona Riffle Beetle
Atractelmis wawona is a species of riffle beetle in the family Elmidae, described by Chandler in 1954. The common name 'Wawona Riffle Beetle' references Wawona, a location in California's Sierra Nevada. Like other elmids, it inhabits aquatic environments with flowing water. Very few observations or detailed studies of this species have been published.
Atractotomus miniatus
Atractotomus miniatus is a species of plant bug in the family Miridae, first described by Knight in 1926. It belongs to a genus of small predatory or omnivorous mirids. The species is documented from multiple states in the southeastern and south-central United States.
Atractotomus nicholi
Atractotomus nicholi is a species of plant bug in the family Miridae, described by Knight in 1968. It is known from the southwestern United States, specifically Arizona and California. As a member of the genus Atractotomus, it belongs to a group of small predatory or plant-feeding bugs within the diverse Miridae family.
Atranus pubescens
Atranus pubescens is a ground beetle in the family Carabidae. The species is distributed across North America, with records from Canada and the United States. As a member of the subfamily Platyninae, it belongs to a group of carabid beetles typically associated with forest floor habitats. The specific epithet "pubescens" refers to a pubescent (hairy) appearance, though detailed morphological descriptions are limited in available sources.
Atrecus americanus
Atrecus americanus is a species of rove beetle in the family Staphylinidae, described by Casey in 1906. It belongs to the tribe Othiini within the subfamily Staphylininae. The species is known from eastern North America, with records spanning from southeastern Canada through the northeastern and north-central United States.
Atricholeon tuberculatus
Atricholeon tuberculatus is a species of antlion in the family Myrmeleontidae, first described by Banks in 1899 under the basionym Brachynemurus tuberculatus. The species is distributed across North and Middle America. As with other antlions, adults are aerial predators while larvae are ambush predators that construct pit traps in sandy substrates. The genus Atricholeon is characterized by reduced wing venation and specific structural features distinguishing it from related genera.
Atroposia oenotherana
Primrose Cochylid Moth
Atroposia oenotherana, the Primrose Cochylid Moth, is a small tortricid moth in the tribe Cochylini. The species was originally described by Riley in 1881 as Conchylis oenotherana, and has since been transferred to the genus Atroposia. It is known from North America and has been documented in 615 iNaturalist observations.
Atropsocus atratus
Atropsocus atratus is a species of barklouse in the family Psocidae, originally described as Psocus atratus by Aaron in 1883. The species is known from the United States and is part of the diverse Psocodea order, which includes booklice, barklice, and parasitic lice. As a member of the Psocidae family, it is likely associated with bark, leaf litter, or other decaying organic matter where these insects commonly feed on microflora. The genus Atropsocus contains multiple species distributed primarily in North America.
Atrusca
Atrusca is a genus of gall wasps in the family Cynipidae, tribe Cynipini, comprising approximately 42 species distributed across North and Central America. These tiny wasps are specialized herbivores that induce characteristic galls on oak (Quercus) host plants. The genus forms a phylogenetically distinct clade most closely related to Cynips, Philonix, and Xanthoteras, and morphologically resembles Cynips and Antron. Species exhibit high host specificity, with each typically restricted to one or a few closely related oak species.
gall-waspCynipidaeoak-gallQuercusherbivoreparasitoidNorth-AmericaMexicoCentral-AmericaCynipiniinduced-gallplant-insect-interactionhost-specificityalternation-of-generationsasexual-reproductionsexual-reproductionecosystem-engineerinquilinehyperparasitoidbella-species-complexphylogeneticstaxonomyKinsey-1930Atrytonopsis deva
Deva Skipper
Atrytonopsis deva, commonly known as the Deva Skipper, is a species of grass skipper butterfly in the family Hesperiidae. It is found in both Central America and North America. The species was originally described as Hesperia deva by Edwards in 1876. It is assigned Hodges number 4081 in the North American Moth Photographers Group numbering system. As a member of the grass skipper group, it likely exhibits the rapid, darting flight characteristic of this subfamily.
Atrytonopsis edwardsi
sheep skipper
Atrytonopsis edwardsi, commonly known as the sheep skipper, is a grass skipper butterfly in the family Hesperiidae. The species was first described by William Barnes and James Halliday McDunnough in 1916. It occurs in Central and North America, with a Hodges number of 4088. The species is currently treated as a synonym of Atrytonopsis ovinia by some taxonomic authorities.
Atrytonopsis hianna
dusted skipper
Atrytonopsis hianna, commonly known as the dusted skipper, is a small butterfly in the family Hesperiidae native to North America. Adults have a wingspan of 32–43 mm and exhibit distinct seasonal patterns across their range, with single generations in northern populations and two generations in southern regions. The species is closely associated with prairie and grassland habitats where its larval host plants, big bluestem and little bluestem, occur.
Atrytonopsis lunus
Moon-marked Skipper
Atrytonopsis lunus, the moon-marked skipper, is a species of grass skipper in the family Hesperiidae. It occurs in Central America and North America. The species is assigned Hodges number 4082 in the North American Moth Photographers Group system.
Atrytonopsis python
Python Skipper, Annual Sea-blite
Atrytonopsis python, commonly known as the Python Skipper or Annual Sea-blite, is a species of grass skipper butterfly in the family Hesperiidae. It is found in North America. The species was first described by Edwards in 1882. Two subspecies are recognized: A. p. margarita and the nominate A. p. python. The species is assigned MONA/Hodges number 4086.
Atrytonopsis vierecki
Viereck's skipper
Atrytonopsis vierecki, commonly known as Viereck's skipper, is a grass skipper butterfly in the family Hesperiidae. It is found in North America. The species was first described by Skinner in 1902 under the basionym Pamphila vierecki. It is assigned MONA/Hodges number 4083.
Attagenus rufipennis
Attagenus rufipennis is a carpet beetle species in the family Dermestidae. It occurs in North America. Like other Attagenus species, it is likely associated with dried organic materials, though specific details about its biology remain poorly documented in available sources.
Attagenus schaefferi
carpet beetle
Attagenus schaefferi is a species of carpet beetle in the family Dermestidae, distributed across North America. It belongs to the subfamily Attageninae and is one of nine Attagenus species recognized north of Mexico. The species was originally described as Megatoma schaeferi by Herbst in 1792. Two subspecies have been recognized: A. s. hypar Beal, 1970 and A. s. spurcus LeConte, 1874. Like other carpet beetles, it is commonly associated with dried animal products and household environments.
Attalus
Attalus sp-one-ariz is an undescribed or provisionally named species of soft-winged flower beetle in the family Melyridae, recorded from Arizona. Members of the genus Attalus are small, often brightly colored beetles associated with flowers and vegetation. This species appears to represent a distinct taxon within the diverse southwestern North American Attalus fauna.