North-america
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Amblyscirtes elissa
Elissa Roadside-Skipper
Amblyscirtes elissa, commonly known as the Elissa Roadside-Skipper, is a grass skipper butterfly in the family Hesperiidae. The species was described by Godman in 1900 and occurs in Central America and North America. Two subspecies are recognized: A. e. elissa (the nominate subspecies) and A. e. arizonae, described by Freeman in 1993. Like other members of its genus, it is a small, rapid-flying butterfly associated with grassy habitats.
Amblyscirtes eos
Dotted Roadside-Skipper
Amblyscirtes eos, commonly known as the Dotted Roadside-Skipper, is a grass skipper butterfly in the family Hesperiidae. It occurs in Central America and North America. The species was originally described as Hesperia eos by W.H. Edwards in 1871. Like other members of the genus Amblyscirtes, it is associated with grassy habitats and roadside environments.
Amblyscirtes exoteria
Large Roadside-Skipper
Amblyscirtes exoteria, commonly known as the large roadside skipper, is a grass skipper butterfly in the family Hesperiidae. It occurs in Central America and North America. The species belongs to the genus Amblyscirtes, a group of small to medium-sized skippers often associated with grassy habitats and roadsides.
Amblyscirtes fimbriata
orange-edged roadside skipper
Amblyscirtes fimbriata, the orange-edged roadside skipper, is a grass skipper in the butterfly family Hesperiidae. It occurs in Central America and North America. The species was described by Plötz in 1882, originally as Hesperia fimbriata. Two subspecies are recognized: A. f. fimbriata and A. f. pallida.
Amblyscirtes linda
Linda's roadside skipper, Linda's Roadside-Skipper
A small grass skipper in the family Hesperiidae, described by Hugh Avery Freeman in 1943. The species is characterized by dark brown wings with distinctive light spotting patterns and a wingspan of 29–34 mm. It occurs in North America and is one of approximately 25 species in the genus Amblyscirtes.
Amblyscirtes nereus
Slaty Roadside-Skipper, Slaty Roadside Skipper
Amblyscirtes nereus, known as the slaty roadside skipper, is a grass skipper butterfly in the family Hesperiidae. The species was originally described by W.H. Edwards in 1876 as Hesperia nereus. It is one of approximately 25 species in the genus Amblyscirtes, a group of small to medium-sized skippers found primarily in North America.
Amblyscirtes tolteca
Toltec Roadside-Skipper, Toltec Roadside Skipper
Amblyscirtes tolteca, commonly known as the Toltec Roadside-Skipper, is a grass skipper butterfly in the family Hesperiidae. It was described by Scudder in 1872. The species is found in Central America and North America. Two subspecies are recognized: A. t. prenda (Evans, 1955) and the nominate A. t. tolteca (Scudder, 1872).
Amblyseius andersoni
Amblyseius andersoni is a generalist predatory mite in the family Phytoseiidae, widely distributed across Europe, North America, and parts of Asia. It is commercially available and employed as a biological control agent against spider mites, eriophyid mites, and other small arthropod pests in orchards, greenhouses, and open-field crops. The species exhibits broad dietary flexibility, feeding on plant-feeding mites, thrips, whiteflies, and various pollens. Laboratory studies demonstrate that it can be mass-reared on alternative diets such as cattail pollen and the stored product mite Carpoglyphus lactis without loss of predatory efficiency on natural prey.
predatory-mitebiological-controlgeneralist-predatorintegrated-pest-managementspider-mite-controleriophyid-mite-controlorchard-pest-managementgreenhouse-biocontrolmass-rearingpollen-feedingalternative-diettemperature-dependent-developmentPhytoseiidaeAcariEuropeNorth-AmericaChinaapplecitrusconiferous-plantsAmblysellus curtisii
Amblysellus curtisii is a leafhopper species in the family Cicadellidae, first described by Fitch in 1851 under the basionym Amblycephalus curtisii. It belongs to the subfamily Deltocephalinae, one of the largest and most diverse groups of leafhoppers. The species has been documented across multiple states in the eastern and midwestern United States. It is part of the genus Amblysellus, which comprises small to medium-sized leafhoppers typically associated with grasses and herbaceous vegetation.
Amblysellus dorsti
Amblysellus dorsti is a leafhopper species in the family Cicadellidae, described by Oman in 1940. Originally placed in the genus Deltocephalus, it was later transferred to Amblysellus. The species is known from a limited number of records in the southwestern United States. Like other members of its genus, it belongs to the large and diverse leafhopper subfamily Deltocephalinae.
Ambrosiophilus atratus
Black Bark Weevil
Ambrosiophilus atratus is a non-native ambrosia beetle in the weevil family Curculionidae, subfamily Scolytinae. First recorded in Europe in Slovenia in 2017 during monitoring surveys for invasive ambrosia beetles. The species is distinguished by pronounced asperities covering the entire pronotum surface. Native to North America and Southern Asia, it has established populations in Europe through human-mediated introduction.
Ambrysus californicus
California creeping water bug
Ambrysus californicus is a species of creeping water bug in the family Naucoridae. It was described by Montandon in 1897. The species is native to North America and belongs to the subfamily Cryphocricinae, commonly known as saucer bugs due to their round, flat body shape. Like other members of the genus Ambrysus, it is an aquatic insect adapted to life in running streams.
Ambrysus circumcinctus
creeping water bug
Ambrysus circumcinctus is a species of creeping water bug in the family Naucoridae, distributed across Central America and North America. As a member of the subfamily Cryphocricinae, it inhabits aquatic environments including running streams. The genus Ambrysus is widespread in the New World, with its greatest diversity in Mexico. Like other naucorids, this species has adaptations for clinging to substrates in flowing water.
Ameletus celer
Ameletus celer is a Nearctic species of mayfly in the family Ameletidae, described by McDunnough in 1934. As a member of the genus Ameletus, it belongs to a group of mayflies commonly known as the "prong-gilled mayflies" due to the distinctive forked structure of their gills. The species occurs in North America, though specific ecological details remain poorly documented in the available literature.
Ameletus ludens
Ameletus ludens is a species of combmouthed minnow mayfly in the family Ameletidae, described by Needham in 1905. It belongs to the order Ephemeroptera, a group of aquatic insects known for their brief adult lifespans. The species is found in North America, though specific details about its ecology and life history remain limited in available sources.
Ameletus subnotatus
combmouthed minnow mayfly
Ameletus subnotatus is a species of combmouthed minnow mayfly in the family Ameletidae. It is one of 13 bisexual Ameletus species documented in Alberta, Canada, where it occurs across virtually all hydrographic basins from small headwater streams to large rivers. The species is found throughout Canada and extends into the northern and southwestern United States.
Ameletus velox
Ameletus velox is a North American mayfly species described by Dodds in 1923. It belongs to the family Ameletidae, a group of predatory mayflies known for their distinctive larval morphology and behavior. The species is part of the Nearctic fauna with documented presence in North America. As with other Ameletus species, it likely inhabits cool freshwater streams, though specific ecological details for this species remain limited in available literature.
Amercedes
flower weevils
Amercedes is a genus of flower weevils in the beetle family Curculionidae. The genus was established by Thomas L. Casey in 1894 and contains at least three described species. Members of this genus are associated with flowers, though specific ecological relationships remain poorly documented.
Americanura bara
Americanura bara is a species of springtail in the family Neanuridae, described by K. Christiansen and P. Bellinger in 1980. It belongs to the order Poduromorpha, a group of springtails characterized by their relatively short bodies and reduced furcula. The species is part of the genus Americanura, which contains several North American species. Distribution records indicate presence in northern and southern North America.
Americerura scitiscripta
black-etched prominent, Black-etched Prominent Moth
Americerura scitiscripta, commonly known as the black-etched prominent moth, is a species of prominent moth in the family Notodontidae. It was originally described in the genera Cerura and Tecmessa before being placed in Americerura, a genus now restricted to the New World. The species is broadly distributed across North America, with adults active from early spring through autumn depending on latitude.
Amerizus spectabilis
spectacular riverbank ground beetle
Amerizus spectabilis is a species of ground beetle in the family Carabidae. It occurs along the Pacific coast of North America from Alaska to California. The species is commonly known as the spectacular riverbank ground beetle.
Amerizus wingatei
Wingate's riverbank ground beetle
Amerizus wingatei is a small ground beetle in the family Carabidae, commonly known as Wingate's riverbank ground beetle. The species was originally described as Bembidion wingatei by Bland in 1864 and later transferred to the genus Amerizus. It is primarily associated with riparian habitats in eastern North America. Reports of its presence in Europe and northern Asia are disputed and not supported by recent taxonomic reviews.
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.
Amisega kahlii
Amisega kahlii is a species of cuckoo wasp in the subfamily Amiseginae. Members of this genus are kleptoparasitic, laying eggs in the nests of other insects. The species has been recorded from scattered localities across the eastern and central United States.
Ammobatoidini
cuckoo bees
Ammobatoidini is a tribe of cleptoparasitic bees in the family Apidae, subfamily Nomadinae. The tribe contains at least four genera (Aethammobates, Ammobatoides, Holcopasites, and Schmiedeknechtia) and approximately 30 described species. Members are obligate cleptoparasites, laying eggs in the nests of host bees. The tribe has been documented in North America, with some species having restricted geographic ranges.
Ammodonus fossor
Ammodonus fossor is a species of darkling beetle (family Tenebrionidae) described by LeConte in 1847. The species epithet "fossor" (Latin for "digger") suggests fossorial (burrowing) habits, though specific behavioral documentation is limited. It is recorded from Ontario, Canada, with relatively few observations available. As a member of Tenebrionidae, it belongs to a large and diverse family of beetles primarily associated with arid and semi-arid environments, though many species occupy varied habitats.
Ammophila ferruginosa
Ammophila ferruginosa is a species of thread-waisted wasp in the family Sphecidae. It is one of over sixty species in the genus Ammophila found in North America. Like other members of this genus, it is a solitary wasp that provisions underground nests with paralyzed caterpillars as food for its larvae. The species was described by Cresson in 1865 and is recorded from North America, with specific distribution records from Canada including Alberta.
Ammosphex michiganensis
Ammosphex michiganensis is a species of spider wasp in the family Pompilidae, first described by Dreisbach in 1949. The species was originally placed in the genus Pompilus before being transferred to Ammosphex. It is a member of the diverse spider wasp family, which are characterized by their habit of hunting spiders to provision nests for their larvae. The species has been documented through a limited number of observations, suggesting it may be uncommon or understudied.
Amnestus pallidus
pallid burrowing bug
Amnestus pallidus is a burrowing bug species in the family Cydnidae, characterized by its subterranean lifestyle and association with soil habitats. The species occurs across Central America and North America, with documented records from the United States including Vermont. As a member of the burrowing bug family, it possesses morphological adaptations for digging and is typically found in contact with soil or ground-level vegetation. The species was described by Zimmer in 1910 and remains relatively poorly known in terms of detailed natural history.
Amnestus spinifrons
burrowing bug
Amnestus spinifrons is a species of burrowing bug in the family Cydnidae, first described by Thomas Say in 1825. It belongs to the genus Amnestus, which comprises burrowing bugs that live in soil and are associated with plant roots. The species is known from North America. Burrowing bugs in this family are characterized by fossorial (digging) adaptations and are often found in association with host plants.
Amolita roseola
Amolita roseola is a species of owlet moth in the family Noctuidae, first described by Smith in 1903. It belongs to the subfamily Acronictinae and is found in North America. The species is assigned MONA/Hodges number 9821, a standardized numbering system for North American Lepidoptera. Like other members of the genus Amolita, it is a nocturnal moth with typical owlet moth characteristics.
Amorophaga cryptophori
Amorophaga cryptophori is a species of clothes moth in the family Tineidae, first described by Clarke in 1940. It belongs to a genus characterized by distinctive morphological features related to the phallus structure. The species has been recorded from Idaho, USA. Like other tineid moths, it likely has larvae that feed on keratinous materials, though specific life history details remain poorly documented.
Amorphicola pallida
Amorphicola pallida is a psyllid species in the family Psyllidae, first described by Tuthill in 1943. Psyllids, commonly known as jumping plant lice, are small sap-feeding insects that typically specialize on particular host plants. This species has been recorded from the central United States including Iowa, Kansas, Minnesota, and Nebraska.
Amotus
Amotus is a genus of broad-nosed weevils in the family Curculionidae, established by Casey in 1888. The genus contains at least three described species distributed in North America. As members of the subfamily Entiminae and tribe Tanymecini, these weevils share characteristics with other broad-nosed weevils, including a broad, short rostrum. The genus is poorly documented in ecological literature.
Amotus setulosus
Amotus setulosus is a species of broad-nosed weevil in the family Curculionidae, described by Schönherr in 1847. As a member of the subfamily Entiminae, it possesses the characteristic short, broad snout typical of this group. The species is known to occur in North America.
Ampedus atripennis
Ampedus atripennis is a species of click beetle in the family Elateridae, first described by Horn in 1871. It belongs to the genus Ampedus, a diverse group of beetles commonly known as click beetles due to their ability to right themselves using a prosternal process. The species has been documented in British Columbia, Canada, with limited observational records available.
Ampedus fuscatus
Ampedus fuscatus is a click beetle in the family Elateridae, described from North America by Melsheimer in 1845. Like other members of the genus Ampedus, it possesses the characteristic prosternal process that produces the clicking mechanism for which the family is named. The species has been documented in Ontario, Canada, with limited observational records available.
Ampedus luctuosus
Sorrowful Click Beetle
Ampedus luctuosus is a click beetle in the family Elateridae, distributed across central and eastern Canada. The species is known from limited observations, with 11 records on iNaturalist. Like other members of its genus, it possesses the characteristic click mechanism that allows beetles to right themselves when overturned.
Ampedus moerens
Sad Click Beetle
Ampedus moerens is a species of click beetle in the family Elateridae, commonly known as the Sad Click Beetle. It belongs to the tribe Ampedini within the subfamily Dendrometrinae. The species was described by LeConte in 1861. Records indicate presence in western and northern Canada, including Alberta and British Columbia.
Ampedus sanguinipennis
Ampedus sanguinipennis is a click beetle in the family Elateridae, native to eastern North America. The species name "sanguinipennis" refers to the blood-red wing coloration characteristic of this beetle. It is one of numerous Ampedus species distinguished by bright coloration, often in red or orange tones. Records indicate presence in eastern Canada and the northeastern United States.
Ampeloglypter
Ampeloglypter is a genus of true weevils (family Curculionidae) in the tribe Madarini, established by LeConte in 1876. The genus contains at least one species, Ampeloglypter ater, commonly known as the grape cane girdler, which has been documented as a pest in vineyard settings. Records indicate occurrence in eastern North America, with confirmed presence in the eastern United States and Ontario, Canada.
Ampeloglypter longipennis
Ampeloglypter longipennis is a species of flower weevil in the beetle family Curculionidae. It was described by Thomas Lincoln Casey in 1892. The species is found in North America.
Amphasia interstitialis
Red-headed Ground Beetle
Amphasia interstitialis, commonly known as the red-headed ground beetle, is a small ground beetle native to North America. Adults measure 8.5–10.2 mm and display distinctive coloration with dark elytra contrasting against an orange pronotum and head. The species occupies moist, covered microhabitats within deciduous forests, including leaf litter and spaces beneath stones and logs. It is widespread across the northeastern United States and adjacent Canadian provinces, with populations extending into the central United States.
Amphiagrion
Red Damsels
Amphiagrion is a genus of small damselflies in the family Coenagrionidae, endemic to North America. The genus contains two recognized species: Amphiagrion abbreviatum (western red damsel) and Amphiagrion saucium (eastern red damsel). Males exhibit bright red coloration with black markings; females are duller. The genus is notable for its association with geothermal springs and specific perching site requirements.
Amphibolips confluenta
spongy oak apple gall wasp
Amphibolips confluenta, commonly known as the spongy oak apple gall wasp, is a species of gall wasp in the family Cynipidae. The species induces characteristic galls on oak trees (Quercus spp.) and has been recorded from multiple oak host species across eastern North America. Its range extends from Ontario and Quebec in Canada through much of the eastern United States.
Amphibolips cookii
Oak Apple Gall Wasp
Amphibolips cookii is a cynipid gall wasp that induces the formation of oak apple galls on oak trees. The species is widely distributed in North America and has been documented extensively through community science observations. Its life cycle involves an alternation of generations between sexual and asexual forms, a trait common among Cynipidae but with specific host associations for this species. The wasp itself is small and inconspicuous; its primary visibility comes from the distinctive galls it produces on oak foliage.
Amphibolips ilicifoliae
Amphibolips ilicifoliae is a species of gall wasp in the family Cynipidae that induces galls on oak leaves. It is one of numerous Amphibolips species associated with oaks in North America. The species is distinguished by its specific host association with certain oak groups and the morphology of the galls it produces. Like other cynipid gall wasps, it has a complex life cycle involving both sexual and asexual generations, though details specific to this species remain incompletely documented.
Amphibolips quercusostensackenii
Small Oak Apple Gall Wasp
Amphibolips quercusostensackenii is a gall wasp in the family Cynipidae that induces distinctive galls on red oak leaves. The species was reclassified from Andricus to Amphibolips in 2002 based on adult morphology. It is distributed throughout eastern North America.
Amphicerus teres
horned powder-post beetle
Amphicerus teres is a species of horned powder-post beetle in the family Bostrichidae. The species was described by Horn in 1878. It is known from North America. The common name "powder-post beetle" refers to the larval habit of boring into wood and reducing it to a fine, powdery frass.
Amphicosmus arizonensis
Amphicosmus arizonensis is a species of bee fly in the family Bombyliidae. It was described by Johnson & Johnson in 1960 and is known from Arizona. As a member of the bee fly family, it belongs to a group of true flies that are often mistaken for bees due to their morphological adaptations for pollination. The species is currently accepted as valid, though it has been treated as a synonym of Amphicosmus vanduzeei in some classifications.