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Acanthepeira cherokee
Cherokee Orbweaver
Acanthepeira cherokee is a species of orb-weaving spider in the family Araneidae, described by Herbert W. Levi in 1976. It belongs to a genus characterized by distinctive abdominal tubercles or spines that provide camouflage. The species is found in the United States, though specific details about its biology and ecology remain limited in published literature.
Acanthepeira marion
Acanthepeira marion is an orb-weaving spider in the family Araneidae, first described by Levi in 1976. The species is distributed across the United States and Mexico. As a member of the genus Acanthepeira, it shares the distinctive spiny abdominal tubercles characteristic of this group of orbweavers.
Acroneuria
common stoneflies
Acroneuria is a genus of large-bodied stoneflies in the family Perlidae, containing more than 30 described species distributed across North America and Asia. Nymphs are predatory and inhabit streams and rivers, where they serve as important bioindicators of water quality. Adults are known for distinctive emergence behaviors, including arboreal emergence in some species. Several species in the genus are experiencing range contractions and population declines due to habitat degradation and climate change.
Acupalpus hydropicus
Acupalpus hydropicus is a species of ground beetle in the family Carabidae. First described by LeConte in 1863, this beetle belongs to the genus Acupalpus, a group of small to medium-sized carabids. The species has been documented in the United States and is known to be predatory.
Acupalpus pumilus
Dwarf Harp Ground Beetle
Acupalpus pumilus is a species of ground beetle in the family Carabidae, first described by Lindroth in 1968. It is known from North America, with records from Canada and the United States. The species belongs to the genus Acupalpus, a group of small ground beetles often referred to as harp ground beetles. Very few observations of this species have been documented.
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.
Agelenopsis spatula
funnel weaver spider
Agelenopsis spatula is a species of funnel weaver spider in the family Agelenidae, first described in 1935 by Ralph Vary Chamberlin and Wilton Ivie. It is known only from the United States. As a member of the genus Agelenopsis, it shares the characteristic funnel-web building behavior and elongated spinnerets typical of this group.
Agyneta barrowsi
Agyneta barrowsi is a species of sheet weaver spider in the family Linyphiidae, described by Chamberlin & Ivie in 1944. It occurs in the United States and Canada. The genus Agyneta belongs to the large family of dwarf sheet weavers, which are characterized by their small size and flat, sheet-like webs.
Amara deparca
Amara deparca is a ground beetle species in the family Carabidae, described by Thomas Say in 1830. It belongs to the large genus Amara, which contains numerous species of small to medium-sized carabid beetles found primarily in the Northern Hemisphere. Records indicate presence in Mexico and the United States.
Amara sinuosa
Amara sinuosa is a species of ground beetle in the family Carabidae. The species was originally described as Celia sinuosa by Casey in 1918 before being transferred to the genus Amara. It is recorded from Alaska, Canada, and the United States. Like other members of the genus Amara, it is likely associated with seed-feeding habits, though specific dietary details for this species are not documented.
Ameroduvalius jeanneli
Ameroduvalius jeanneli is a small ground beetle in the family Carabidae, described by Valentine in 1952. The genus Ameroduvalius belongs to the tribe Trechini, a group of small carabid beetles often associated with subterranean or cryptic habitats. Records indicate this species occurs in the United States.
Anahita punctulata
Southeastern Wandering Spider
Anahita punctulata, commonly known as the southeastern wandering spider, is a species of wandering spider in the family Ctenidae. It is found in the United States. The species was first described by Hentz in 1844.
Anillinus barberi
Anillinus barberi is a small carabid beetle in the tribe Bembidiini, described by Jeannel in 1963. It belongs to a genus of minute ground beetles characterized by reduced or absent eyes and elongated appendages adapted for subterranean life. The species is known from the United States and is part of a poorly studied group of beetles with limited published ecological data.
Anillinus chilhowee
Anillinus chilhowee is a small ground beetle (Carabidae) in the tribe Bembidiini, described by Sokolov in 2011. It belongs to the genus Anillinus, a group of minute, eyeless or nearly eyeless beetles adapted to subterranean or deep soil habitats. The species epithet references the Chilhowee region, likely indicating its type locality in the southeastern United States.
Anillinus murrayae
Anillinus murrayae is a small ground beetle in the family Carabidae, described by Sokolov and Carlton in 2004. It belongs to the genus Anillinus, a group of minute, eyeless or nearly eyeless beetles adapted to subterranean and soil-dwelling lifestyles. The species is known from the United States. Like other members of its genus, it likely inhabits deep soil and leaf litter layers in forested environments.
Anillinus pecki
Anillinus pecki is a species of small ground beetle in the family Carabidae, described by Giachino in 2011. It belongs to the subtribe Anillina, a group of minute carabid beetles often associated with subterranean or soil-dwelling habitats. The genus Anillinus is endemic to North America, with species distributed primarily in the eastern and central United States. Like other anillines, this species is likely eyeless or has highly reduced eyes and exhibits morphological adaptations for life in soil, leaf litter, or cave-like microhabitats.
Anillinus tishechkini
Anillinus tishechkini is a small ground beetle species described in 2004 from the United States. It belongs to the tribe Anillina within Carabidae, a group characterized by reduced eyes and subterranean habits. The species is part of a genus containing numerous micro-endemic taxa in North America.
Anisodactylus ovularis
Anisodactylus ovularis is a species of ground beetle in the family Carabidae. It is native to North America, with confirmed records from Canada and the United States. The genus Anisodactylus includes species with diverse feeding habits, including granivory, though specific dietary information for A. ovularis remains undocumented.
Anisodactylus similis
A species of ground beetle in the family Carabidae. It is found in North America.
Anomala insitiva
Iridescent Anomala
Anomala insitiva is a species of shining leaf chafer in the family Scarabaeidae, first described by Robinson in 1938. It belongs to the genus Anomala, a diverse group of scarab beetles commonly known as chafers. The species has been documented in Texas, USA. Like other members of the genus, it likely exhibits the metallic coloration characteristic of shining leaf chafers.
Anyphaena dixiana
ghost spider
Anyphaena dixiana is a species of ghost spider in the family Anyphaenidae. It belongs to the celer species group within the genus Anyphaena. Originally described from the United States, the species has subsequently been recorded from Mexico. As with other anyphaenids, it is likely nocturnally active.
Anyphaena fraterna
ghost spider
Anyphaena fraterna is a species of ghost spider in the family Anyphaenidae, first described by Banks in 1896. It belongs to a family of wandering hunters that do not build permanent webs for prey capture. The species is documented from the United States, though specific details about its ecology and behavior remain limited in published literature. Like other anyphaenids, it is presumably nocturnally active and associated with vegetation.
Apollophanes texanus
Apollophanes texanus is a species of running crab spider in the family Philodromidae. The species was described by Nathan Banks in 1904. It occurs in the southern United States and Mexico. Like other philodromids, it is an active hunter that does not construct webs to capture prey.
Araneus groenlandicola
Greenland Orbweaver
Araneus groenlandicola is a species of orb-weaver spider in the family Araneidae. It is known from a limited geographic range spanning the northernmost regions of North America, including Greenland, Canada, and the northern United States. The species was described by Embrik Strand in 1906. As with other members of the genus Araneus, it constructs spiral wheel-shaped webs for prey capture.
Araneus iviei
Araneus iviei is a species of orb-weaving spider in the family Araneidae. It was described by Archer in 1951. The species is known from the United States and Canada, with records from Alberta and British Columbia in Canada. As a member of the genus Araneus, it constructs spiral wheel-shaped webs typical of orb-weaver spiders.
Arianops norithe
Arianops norithe is a species of ant-loving beetle in the family Staphylinidae, subfamily Pselaphinae. It was described by Barr in 1974 and is known from North Carolina, USA. The genus Arianops is part of the tribe Amauropini, a group of small beetles associated with ant colonies.
Arthrorhabdus pygmaeus
Arthrorhabdus pygmaeus is a species of centipede in the family Scolopendridae, first described by Pocock in 1895. It is a small scolopendrid centipede with a distribution spanning the southern United States and Mexico. The species belongs to a genus characterized by distinctive morphological features, though detailed ecological and behavioral studies remain limited.
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.
Axinopalpus pratti
Axinopalpus pratti is a species of ground beetle in the family Carabidae, described by Hatch in 1949. The genus Axinopalpus belongs to the subtribe Dromiusina within the tribe Lebiini. This species is known from the western United States. Members of this genus are generally small, active beetles associated with ground-level habitats.
Axinopalpus vittatus
Axinopalpus vittatus is a species of ground beetle in the family Carabidae, described by Hatch in 1949. The genus Axinopalpus belongs to the subtribe Dromiusina within the tribe Lebiini. The species is recorded from the United States, though specific details about its biology and ecology remain poorly documented in available sources.
Aztecarpalus schaefferi
Aztecarpalus schaefferi is a species of ground beetle in the family Carabidae, first described by George Ball in 1970. It belongs to the tribe Harpalini within the subfamily Harpalinae. The species is distributed across North America, with confirmed records from the United States and Mexico. As a member of the ground beetle family, it is likely a predatory species, though specific ecological details remain poorly documented.
Badister transversus
Transverse Harp Ground Beetle
Badister transversus is a species of ground beetle in the family Carabidae. It is known from North America, with records from Canada and the United States. The species was described by Casey in 1920. As a member of the genus Badister, it belongs to a group commonly referred to as harp ground beetles.
Baldulus montanus
Baldulus montanus is a species of leafhopper in the family Cicadellidae, first described by Oman in 1934. It belongs to the tribe Macrostelini within the subfamily Deltocephalinae. Distribution records indicate presence in Arizona, though detailed biological information appears limited in available sources.
Bathyphantes brevis
Short Sheetweb Weaver
Bathyphantes brevis is a species of sheetweb spider in the family Linyphiidae, first described by Emerton in 1911. It is found in the United States and Canada. As a member of the Linyphiidae, it constructs flat, horizontal sheet webs. The species is part of the diverse genus Bathyphantes, which contains numerous small-bodied spiders.
Bathyphantes keeni
Hump-headed Shield Sheetweaver
Bathyphantes keeni is a species of sheetweb spider in the family Linyphiidae. It occurs in Canada and the United States. The species is part of the diverse sheetweb weaver group, which constructs flat or dome-shaped webs rather than orb webs. Little specific information has been published on its biology.
Bembidion antiquum
Bembidion antiquum is a species of ground beetle in the subfamily Trechinae, first described by Dejean in 1831. It occurs in North America, specifically in Canada and the United States. The species belongs to the large genus Bembidion, which comprises numerous small ground beetle species commonly found in diverse terrestrial habitats.
Bembidion balli
Bembidion balli is a species of ground beetle in the family Carabidae, described by Lindroth in 1962. The species is known from North America, with records from Alaska, Canada, and the contiguous United States. As a member of the genus Bembidion, it belongs to a large and diverse group of small carabid beetles commonly found in riparian and moist habitats.
Bembidion chalceum
Bembidion chalceum is a species of ground beetle in the family Carabidae. It is found in North America, with distribution records from Canada and the United States. The species belongs to the large genus Bembidion, which contains many small, often metallic-colored ground beetles.
Bembidion fugax
Bembidion fugax is a species of ground beetle in the family Carabidae. It occurs in North America, with records from Canada and the United States. Like other members of the genus Bembidion, it is a small predatory beetle.
Bembidion gratiosum
Bembidion gratiosum is a species of ground beetle in the family Carabidae, described by Casey in 1918. It is found in North America, with records from Alaska, Canada, and the United States. As a member of the genus Bembidion, it belongs to a diverse group of small carabid beetles commonly known as ground beetles.
Bembidion hesperium
Bembidion hesperium is a species of ground beetle in the family Carabidae, first described by Fall in 1910. It belongs to the large genus Bembidion, which comprises numerous small predatory beetles commonly found in diverse habitats across North America. The species is documented from both Canada and the United States, though specific details about its biology and ecology remain limited in available literature. Like other members of its genus, it is presumed to be a ground-dwelling predator of small invertebrates.
Bembidion louisella
Bembidion louisella is a species of ground beetle in the family Carabidae. It is found in North America. The species was described by David Maddison in 2008.
Bembidion nebraskense
Bembidion nebraskense is a species of ground beetle in the family Carabidae, first described by LeConte in 1863. It is native to North America, with distribution records from Alaska, Canada, and the contiguous United States. As a member of the large genus Bembidion, it belongs to a group of small, active predators commonly found in diverse terrestrial habitats. The species remains poorly known, with only two observations recorded on iNaturalist.
Bembidion nubiculosum
Bembidion nubiculosum is a species of ground beetle in the family Carabidae, first described by Chaudoir in 1868. The species belongs to the large genus Bembidion, which comprises numerous small carabid beetles commonly found in diverse habitats across North America. Limited documentation exists regarding its biology and ecology.
Bembidion rolandi
Bembidion rolandi is a species of ground beetle in the subfamily Trechinae. The species was described by Fall in 1922. It is distributed across Canada and the United States. As a member of the genus Bembidion, it belongs to a diverse group of small predatory beetles commonly found in riparian and moist habitats.
Bembidion sordidum
Bembidion sordidum is a species of ground beetle in the family Carabidae. It is distributed across northern North America including Alaska, Canada, and the United States. As a member of the genus Bembidion, it belongs to a large and diverse group of small predatory beetles commonly found in varied terrestrial and riparian habitats.
Bembidion stillaguamish
Bembidion stillaguamish is a species of ground beetle in the family Carabidae, first described by Hatch in 1950. It occurs in North America, with records from Canada and the United States. As a member of the genus Bembidion, it belongs to a large and diverse group of small carabid beetles often associated with riparian and moist habitats. Available information on this species is limited, with few documented observations.
Blaste longipennis
common barklouse
Blaste longipennis is a species of barklouse in the family Psocidae. It is known from North America. Information on its biology and ecology is limited.
Blaste posticata
common barklouse
Blaste posticata is a species of barklouse in the family Psocidae. It belongs to the genus Blaste, which comprises small, winged insects commonly found on tree bark and foliage. The species was described by Nathan Banks in 1905 and is distributed across Central America and North America, including Mexico and the United States.
Bledius pallipennis
Bledius pallipennis is a species of rove beetle in the subfamily Oxytelinae, described by Thomas Say in 1823. It belongs to the genus Bledius, a diverse group of beetles commonly associated with moist, sandy, or muddy habitats. The species is distributed across the central and eastern United States. Like other members of its genus, it is likely associated with riparian or shoreline environments.