Nearctic
Guides
Neamblymorpha
Neamblymorpha is a genus of ichneumon wasps described by Heinrich in 1960. It belongs to the family Ichneumonidae, one of the largest families of parasitoid wasps. The genus has been documented in the northeastern United States, with records from Vermont. Like other ichneumonids, members of this genus are presumed to be parasitoids, though specific host associations remain poorly documented.
Nearcticorpus
Nearcticorpus is a genus of small flies in the family Sphaeroceridae, commonly known as lesser dung flies. The genus was described in 1982 by Roháček and Marshall. It contains two known species, both described from the Nearctic region. The genus name reflects its geographic distribution.
Nearctitychus
Nearctitychus is a genus of ant-loving beetles in the family Staphylinidae, established by Chandler in 1988. The genus is monotypic, containing a single described species, N. sternalis. As a member of the subfamily Pselaphinae and tribe Tychini, these beetles are myrmecophilous, meaning they live in association with ant colonies.
Nearctodesmus
Nearctodesmus is a genus of small millipedes in the order Polydesmida, family Nearctodesmidae. These millipedes are characterized by their flattened bodies and reduced segmentation. The genus was established by Silvestri in 1910 and is primarily distributed in the Nearctic region. Members of this genus are part of the diverse soil fauna and contribute to decomposition processes in forest ecosystems.
Nebria metallica
Metallic gazelle beetle
Nebria metallica is a ground beetle species in the subfamily Nebriinae, first described by Gotthelf Fischer von Waldheim in 1822. It is known by the common name Metallic gazelle beetle. The species has a predatory lifestyle, with both larvae and adults functioning as predators. It occupies a range extending from the Aleutian Islands through Alaska and western Canada to the northwestern contiguous United States.
Nectopsyche diarina
White Miller Caddisfly
Nectopsyche diarina is a species of caddisfly in the family Leptoceridae, first described by Ross in 1944. The genus Nectopsyche is commonly referred to as "white millers," a name derived from the pale coloration of adults. Like other members of this genus, N. diarina is attracted to ultraviolet light, making it observable during nocturnal blacklight surveys. The species occurs in North America within the Nearctic region.
Nemocestes horni
Nemocestes horni is a species of broad-nosed weevil (family Curculionidae, subfamily Entiminae) described by Van Dyke in 1936. It belongs to the tribe Peritelini, a group of weevils characterized by their broad, short rostrums. The species is known from scattered localities across North America, including the Pacific Northwest, Great Lakes region, and northeastern United States.
Nemotelus
soldier flies
Nemotelus is a genus of small soldier flies (family Stratiomyidae) containing approximately 30 described species distributed across the Nearctic, Afrotropical, and Palaearctic regions. Adults range from 4.0 to 8.0 mm in body length and are among the smallest members of the family. The genus is characterized by distinctive facial morphology with a pointed snout bearing antennae on the dorsal side, and pronounced sexual dimorphism in coloration. Most species display black bodies with variable white markings, with males typically showing more extensive pale patterning than females.
Nenema confragosa
Nenema confragosa is a species of planthopper in the family Caliscelidae, described by Doering in 1941. It is one of several species in the genus Nenema, a group of small, often inconspicuous planthoppers found in arid regions of western North America. The species appears to be restricted to the southwestern United States, with records from Arizona, Nevada, New Mexico, and Texas. Like other Caliscelidae, it likely inhabits grassland and shrubland environments where it feeds on plant sap.
Neobaphion
Neobaphion is a genus of darkling beetles (Tenebrionidae) established by Blaisdell in 1925. The genus is native to the Nearctic region and contains relatively few described species. As a member of the Tenebrionidae family, it belongs to one of the largest families of beetles, characterized by their generally cryptic habits and association with arid or semi-arid environments. The genus remains poorly studied, with limited published information on its biology and ecology.
Neobisnius gratus
Neobisnius gratus is a species of rove beetle in the family Staphylinidae, first described by John Lawrence LeConte in 1863. It belongs to the subfamily Staphylininae and tribe Staphylinini. The species has been recorded from the southwestern United States and Mexico, with additional unconfirmed reports from Argentina. Available information about its biology and ecology remains limited.
Neobisnius sobrinus
A rove beetle in the genus *Neobisnius*, widely distributed across the Americas from Canada to Brazil. The species was revised taxonomically in 1995, with four names newly synonymized under it. Adults are described and illustrated in taxonomic literature, but detailed ecological and life history information remains sparse.
Neocapsus fasciativentris
Neocapsus fasciativentris is a species of plant bug in the family Miridae, first described by Stål in 1862. It occurs in the southwestern United States and Mexico. The species is part of the diverse and speciose genus Neocapsus, which contains numerous mirid species found primarily in the Americas. Like other mirids, it possesses piercing-sucking mouthparts adapted for feeding on plant fluids.
Neochodaeus
Neochodaeus is a genus of scarab beetles in the family Ochodaeidae, established by Nikolajev in 1995. The genus comprises at least four described species distributed in the Nearctic and Neotropical regions. Members are associated with sandy habitats, earning them the common designation of 'sand-loving scarab beetles'. The genus belongs to the superfamily Scarabaeoidea and is classified within the tribe Ochodaeini.
Neochodaeus frontalis
Neochodaeus frontalis is a sand-loving scarab beetle in the family Ochodaeidae, first described by LeConte in 1863. The species is known from sandy habitats in the southern United States and Mexico. It belongs to a family of beetles commonly referred to as sand-loving scarabs due to their association with sandy soils.
Neochodaeus striatus
Neochodaeus striatus is a species of scarab beetle in the family Ochodaeidae, commonly known as sand-loving scarab beetles. The species was described by LeConte in 1854 and is known from sandy habitats in the southwestern United States. It is one of several species in the genus Neochodaeus, which is restricted to the Nearctic region.
Neochrysocharis epimeralis
Neochrysocharis epimeralis is a small parasitoid wasp in the family Eulophidae, described by Christer Hansson in 1995. The species belongs to a genus known for parasitizing leaf-mining insects, particularly agromyzid flies. It has been recorded from multiple states in the eastern and central United States.
Neocladura
Neocladura is a genus of crane flies in the family Limoniidae, subfamily Chioneinae. The genus contains two described species: N. americana and N. delicatula. It is restricted to North America.
Neocladura americana
Neocladura americana is a species of crane fly in the family Limoniidae, described by Alexander in 1917. It is known from the western United States, with records from Washington south to California. As a member of the Chioneinae subfamily, it belongs to a diverse group of small to medium-sized crane flies. Very little has been published regarding its specific biology, habitat preferences, or ecological role.
Neoclypeodytes
Neoclypeodytes is a genus of small diving beetles in the family Dytiscidae, tribe Bidessini, distributed across western North America and northern Central America. The genus was revised in 2001, with 25 valid species recognized and 11 new species described. A single synapomorphy—two maculae on each elytron—supports its monophyly. Relationships to other bidessine genera remain unresolved.
Neoclypeodytes amybethae
Neoclypeodytes amybethae is a species of predaceous diving beetle in the family Dytiscidae, described by K. B. Miller in 2001 as part of a comprehensive revision of the New World genus Neoclypeodytes. The genus contains 25 valid species distributed in western North America and northern Central America. Species in this genus are characterized by a distinctive pattern of two maculae on each elytron, which represents a possible synapomorphy supporting the monophyly of Neoclypeodytes.
Neoclypeodytes roughleyi
Neoclypeodytes roughleyi is a species of small diving beetle described by K.B. Miller in 2001 during a comprehensive revision of the genus Neoclypeodytes. It is one of eleven new species described in that revision, which recognized 25 valid species in this western North American and northern Central American genus. The genus is characterized by a distinctive pattern of two maculae on each elytron, the only known synapomorphy supporting its monophyly. As a member of the Bidessini tribe within Hydroporinae, it belongs to a group of small, often overlooked aquatic beetles.
Neocoelidia pulchella
Neocoelidia pulchella is a species of leafhopper in the family Cicadellidae, described by Ball in 1909. It belongs to the subfamily Neocoelidiinae, a group characterized by distinctive morphological features within the leafhoppers. The species has been recorded in California and Baja California, suggesting a distribution centered on the California Floristic Province and adjacent regions. Like other members of its family, it is presumed to feed on plant vascular fluids using piercing-sucking mouthparts.
Neocoelidia tuberculata
Neocoelidia tuberculata is a species of leafhopper in the family Cicadellidae, described by Baker in 1898. It belongs to the subfamily Neocoelidiinae, a group characterized by morphological adaptations for their ecological niches. The species is part of a genus distributed primarily in the Nearctic region.
Neocoelidiana obscura
Neocoelidiana obscura is a leafhopper species in the family Cicadellidae, subfamily Neocoelidiinae. It is distributed across the southwestern United States and Mexico, with records from Arizona, California, New Mexico, Oregon, and Morelos. As a member of the diverse leafhopper fauna, it likely inhabits vegetation in arid and semi-arid regions, though specific ecological details remain poorly documented in published literature.
Neocompsa exclamationis
A small longhorn beetle in the family Cerambycidae, described by Thomson in 1861. The species name 'exclamationis' likely refers to a distinctive marking resembling an exclamation point. It belongs to the tribe Tropidini and is part of a genus containing numerous small, slender cerambycids primarily distributed in the Americas.
Neoephemera
large squaregill mayflies
Neoephemera is a genus of large squaregill mayflies in the family Neoephemeridae, established by McDunnough in 1925. The genus contains approximately six extant species distributed across North America and Asia, plus one extinct species from the Eocene of Washington State. Species range from moderate to large size within the family, with body lengths varying considerably. The genus has been subject to taxonomic revision, with at least one species (N. projecta) transferred to a new genus Pulchephemera based on phylogenetic analysis of plesiomorphic characters.
Neoephemera youngi
Neoephemera youngi is a species of mayfly in the family Neoephemeridae, described by Berner in 1953. It belongs to a small family of mayflies with limited distribution records in the Nearctic region. Very little specific information about this species' biology, ecology, or appearance has been documented in accessible literature.
Neogerris
Neogerris is a genus of water striders in the family Gerridae, established by Matsumura in 1913. The genus comprises approximately 13 described species distributed primarily in the Americas. These insects are adapted to life on the water surface, using their elongated middle and hind legs to skate across ponds, streams, and other freshwater habitats.
Neohecalus magnificus
Neohecalus magnificus is a species of leafhopper in the family Cicadellidae, described by Hamilton in 2000. It belongs to the tribe Hecalini, a group of grass-feeding leafhoppers. The species is known from the north-central United States and adjacent Canada, with records from Illinois, Iowa, Manitoba, Michigan, Minnesota. As a member of the subfamily Deltocephalinae, it is likely associated with grassland habitats, though specific ecological details remain poorly documented.
Neoheliodines albidentus
Neoheliodines albidentus is a species of metalmark moth in the family Heliodinidae, a group of small, often colorful microlepidoptera. The genus Neoheliodines is restricted to the New World, with species distributed primarily in the southwestern United States and Mexico. Members of this genus are associated with specific host plants in the family Boraginaceae. N. albidentus is one of several described species in this genus, though detailed biological information remains limited.
Neohelvibotys arizonensis
Neohelvibotys arizonensis is a small crambid moth described by H.W. Capps in 1967. The species occurs in the southwestern United States and Mexico, with a wingspan of 20–24 mm. Adults are active during summer months, with flight periods varying by latitude and elevation.
Neohypdonus restrictulus
Restricted Click Beetle
Neohypdonus restrictulus is a click beetle species in the family Elateridae, first described by Mannerheim in 1853. The species is known by the common name Restricted Click Beetle. It is distributed across high-latitude regions of North America, including Alaska, Yukon, Northwest Territories, Nunavut, and Quebec. As a member of Elateridae, it possesses the family's characteristic click mechanism for righting itself when overturned.
Neoligia
Neoligia is a genus of owlet moths (Noctuidae) established by Troubridge and Lafontaine in 2002. The genus was erected to accommodate species previously classified in the 'semicana group' of the genus Oligia. It contains approximately 16 described species, most described in the same 2002 revision. The genus is part of the diverse subfamily Noctuinae.
Neolimnophila placida
Placid Crane Fly
Neolimnophila placida is a crane fly species in the family Limoniidae, subfamily Chioneinae. It is widely distributed across the Holarctic region, occurring in both the Nearctic and Palaearctic realms. The species has been documented from northern North America through much of Europe and across northern Asia to Japan. Like other limoniid crane flies, it is associated with moist habitats where larvae develop in decaying organic matter.
Neolygus communis
Pear Plant Bug
Neolygus communis is a species of plant bug in the family Miridae, commonly known as the Pear Plant Bug. It is native to eastern North America, with documented records from Canada (Nova Scotia, Newfoundland) and the United States (New York, Vermont, West Virginia). As a member of the large and diverse Miridae family, it is likely associated with woody plants, though specific host relationships require further documentation.
Neolygus inconspicuus
Neolygus inconspicuus is a species of plant bug in the family Miridae, first described by Knight in 1917. The species is native to northeastern North America, with documented occurrences in Ontario, Canada, and the eastern United States. As a member of the genus Neolygus, it belongs to a diverse group of mirid bugs associated with various host plants.
Neolygus vitticollis
Neolygus vitticollis is a species of plant bug in the family Miridae, first described by Reuter in 1876. It belongs to the large and diverse genus Neolygus, which contains numerous species of mirid bugs primarily associated with vegetation. The species has been documented in the eastern United States with scattered records across multiple states.
Neomastix
Neomastix is a genus of true weevils (Curculionidae) established by W.G. Dietz in 1891. It is native to the Nearctic realm. The type species, N. solidaginis, is the only described species currently recognized in the genus. The genus is rarely encountered, with minimal observational records.
Neomintho
Neomintho is a genus of tachinid flies in the tribe Euthelairini, characterized by taxonomic instability and recent revision. The genus was substantially redefined in 2024, with three genus-group names (Euthelaira, Iteuthelaira, Neominthoidea) newly synonymized under it, while Eupelecotheca was revived as a separate genus. Most species occur in the Neotropics, with only one confirmed Nearctic species, N. beckersi, described from Florida and the Cayman Islands. This species represents the first documented host association for the entire tribe, having been reared from the katydid Neoconocephalus triops.
Neomymar
Neomymar is a genus of fairyflies (Mymaridae), among the smallest known insects. The genus was established by Crawford in 1913. Species within this genus are egg parasitoids, though specific host associations remain poorly documented compared to related genera such as Anagrus and Gonatocerus. The Nearctic species were revised by Triapitsyn, Berezovskiy and Huber in 2006, with three species described: N. komar, N. korsar, and N. zuparkoi. These species are known from California and Mexico.
Neon reticulatus
Neon reticulatus is a species of jumping spider in the family Salticidae. It has a wide distribution spanning North America, Europe, and Asia, including Turkey, the Caucasus, Russia (from European to Far East regions), Kazakhstan, Korea, and Japan. The species was first described by Blackwall in 1853. As a member of Salticidae, it possesses the characteristic large anterior median eyes and jumping locomotion typical of this family.
Neonympha
satyr butterflies
Neonympha is a genus of satyrid butterflies occurring in the Nearctic and Neotropical regions. The genus contains several recognized species, including the endangered Mitchell's satyr (Neonympha mitchellii) with its two subspecies: the nominate form in Michigan prairie fens and the Saint Francis satyr (N. m. francisci) restricted to North Carolina. These butterflies exhibit strong habitat specificity to wetland environments, particularly those with sedge vegetation.
Neophylax rickeri
Neophylax rickeri is a caddisfly species in the family Uenoidae, described by Milne in 1935. Larvae construct protective cases using silk and materials gathered from their aquatic environment. The species has been studied in northern California streams, where its life history characteristics have been documented.
Neoporus arizonicus
Neoporus arizonicus is a species of predaceous diving beetle in the family Dytiscidae, subfamily Hydroporinae. First described by Fall in 1917 under the basionym Hydroporus arizonicus, this species is currently classified in the genus Neoporus. It is a small diving beetle known from the southwestern United States, with Arizona representing the core of its known distribution. Like other members of the Hydroporinae, it is adapted to aquatic habitats where it preys on small invertebrates.
Neopsammodius quinqueplicatus
Neopsammodius quinqueplicatus is a species of aphodiine dung beetle described by Horn in 1871. It belongs to the family Scarabaeidae and is part of the Psammodiini tribe, which comprises beetles often associated with sandy habitats. The species occurs in both Nearctic and Neotropical regions.
Neopsammodius werneri
Neopsammodius werneri is a species of aphodiine dung beetle in the family Scarabaeidae. It was described by Cartwright in 1955. The species occurs in both Central America and North America, with records from the southern United States (Texas) and several Mexican states including Chiapas, Oaxaca, and Veracruz, as well as Honduras. As a member of the tribe Psammodiini, it is associated with sandy habitats.
Neoptychodes trilineatus
Fig Tree Borer
A flat-faced longhorn beetle in the subfamily Lamiinae, notable for its variable coloration and distinctive three longitudinal bands. Males are larger than females, reaching up to 35 mm. The common name "Fig Tree Borer" reflects its association with Ficus species.
Neossos
Neossos is a genus of acalyptrate flies in the family Heleomyzidae. The genus is rarely collected and contains at least six described species distributed across the Nearctic region and western Europe. Most specimens have been collected from or reared in association with bird nests, where larvae develop as saprophages in nest material. The genus represents a specialized ecological association with avian nesting habitats.
Neosymydobius
American Oak-twig Aphids
Neosymydobius is a small genus of aphids comprising six described Nearctic species. All species are exclusively associated with oak trees (Quercus spp.), feeding on twigs and branches. The genus was established by Baker in 1920 and is classified within the subfamily Calaphidinae and tribe Myzocallidini.