United-states
Guides
Malezonotus fuscosus
Malezonotus fuscosus is a species of dirt-colored seed bug in the family Rhyparochromidae, described by Barber in 1918. The species belongs to the tribe Gonianotini and is known from the United States. As with other members of Rhyparochromidae, it is likely associated with ground-level habitats and seed-feeding ecology, though specific natural history details remain poorly documented in the accessible literature.
Mallos pallidus
Mallos pallidus is a species of mesh web weaver spider in the family Dictynidae, first described by Banks in 1904. It is found in the United States and Mexico. The genus Mallos belongs to the cribellate spider lineage, characterized by the presence of a cribellum—a silk-producing organ that generates woolly, non-sticky silk used in prey capture.
Manulea bicolor
Manulea bicolor is a moth species in the family Erebidae, subfamily Arctiinae, described by Augustus Radcliffe Grote in 1864. It belongs to the tribe Lithosiini, a group commonly known as footman moths. The species is recognized as valid and accepted in taxonomic databases. Distribution records indicate presence in the United States, specifically Vermont.
Marpissa formosa
Marpissa formosa is a species of jumping spider in the family Salticidae. It is known from the eastern United States. Like other members of the genus, it exhibits the characteristic jumping ability and visual acuity typical of salticid spiders.
Mastophora stowei
Bolas spider
Mastophora stowei is a species of bolas spider in the orb-weaver family Araneidae, described by Herbert W. Levi in 2003. Like other members of the genus Mastophora, this species has abandoned the construction of traditional orb webs in favor of a specialized hunting technique using a single sticky silk globule suspended on a dragline. The species occurs in the United States and is one of approximately 15 Mastophora species found in North America.
Mastophora timuqua
Bolas spider
Mastophora timuqua is an orb-weaver spider in the family Araneidae, notable for its unique hunting strategy. Adult females are bolas spiders that capture prey using sticky silk droplets suspended on a single line rather than constructing a traditional web. The species is known from the United States, with records indicating presence in North America. Like other members of the genus Mastophora, this species exhibits pronounced sexual dimorphism in hunting behavior.
Mecas marginella
Mecas marginella is a species of longhorn beetle (family Cerambycidae) first described by John Lawrence LeConte in 1873. It is native to the United States and belongs to a genus whose members are commonly known as girdlers due to their habit of girdling plant stems. Like other Mecas species, it likely develops as a stem- and root-borer in host plants, though specific details for this species remain poorly documented.
Mecas pergrata
Mecas pergrata is a longhorned beetle in the family Cerambycidae, described by Thomas Say in 1824. Adults are 6–12 mm in length with gray pubescence. The species is a stem- and root-borer that exploits plants in the sunflower family (Asteraceae), including cultivated sunflowers. It is known from Mexico and the United States.
Megacyllene snowi snowi
Megacyllene snowi snowi is a subspecies of longhorn beetle in the family Cerambycidae. It belongs to the genus Megacyllene, which includes several North American species with documented associations with leguminous host plants. The nominate subspecies was described by Tyson in 1982. Members of the species Megacyllene snowi are known to utilize Robinia (locust) as a larval host, placing them among the majority of Nearctic Megacyllene species with established Fabaceae associations.
Megalopsallus pictipes
Megalopsallus pictipes is a species of plant bug in the family Miridae, originally described as Plagiognathus pictipes by Van Duzee in 1918. The species is distributed across the western United States and northern Mexico. Like other members of the genus Megalopsallus, it is a small predatory or plant-feeding true bug. The specific epithet 'pictipes' refers to the marked or painted legs, a characteristic feature of this species.
Megamelus ungulatus
Megamelus ungulatus is a species of planthopper in the family Delphacidae, described by Beamer in 1955. It belongs to the genus Megamelus, which comprises small delphacid planthoppers associated with wetland and aquatic habitats. The species is recorded from the eastern United States, with distribution records from Connecticut, Delaware, Florida, Georgia, and New Jersey. As a member of Delphacidae, it is presumed to feed on monocotyledonous plants, though specific host associations for this species remain undocumented.
Megatibicen resonans
Resonant Cicada, Southern Pine Barrens Cicada
Megatibicen resonans is an annual cicada species in the family Cicadidae, commonly known as the resonant cicada or southern pine barrens cicada. The species was originally described as Cicada resonans by Walker in 1850 and was later transferred from the genus Neotibicen to Megatibicen based on taxonomic revision. It is one of approximately 1026 observation records documented on iNaturalist, indicating moderate to high observer awareness.
Meledonus californicus
Meledonus californicus is a species of tachinid fly described by Coquillett in 1895. The genus Meledonus belongs to the tribe Voriini within the subfamily Dexiinae. The species is known from North America, with records from Canada and the United States. Tachinid flies in this group are generally parasitoids of other insects, though specific host associations for this species have not been documented in the available literature.
Mesagroicus minor
Mesagroicus minor is a species of broad-nosed weevil (family Curculionidae, subfamily Entiminae) described by Buchanan in 1929. It belongs to the tribe Psallidiini and is native to North America. The genus Mesagroicus contains multiple species of weevils, with M. minor being one of the documented members. Like other entimine weevils, adults possess a broad snout and elbowed antennae.
Metachroma interruptum
Metachroma interruptum is a small leaf beetle in the family Chrysomelidae. The species is known from scattered records across the central and eastern United States, with a notably broad geographic range spanning from Texas to Florida and north to Indiana and Utah. Adults measure 4.4–6.0 mm in length. Very few observations exist in public databases, suggesting it may be underreported or genuinely uncommon.
Methia knulli
Methia knulli is a species of longhorn beetle (family Cerambycidae) described by Linsley in 1940. It belongs to the tribe Methiini within the subfamily Cerambycinae. The species is known from North America, specifically the United States. As with many cerambycids, adults likely feed on various plant materials while larvae develop in woody substrates.
Micrixys
Micrixys is a genus of ground beetles in the family Carabidae, subfamily Panagaeinae. The genus was described by LeConte in 1854 and contains at least two recognized species: Micrixys distincta from the United States and Micrixys mexicana from Mexico. These beetles belong to the tribe Panagaeini and are part of the diverse North American carabid fauna.
Micrutalis parva
Micrutalis parva is a small treehopper species in the family Membracidae, first described by Goding in 1893. The species is characterized by its diminutive size relative to other members of the genus Micrutalis. Treehoppers in this genus are known for their distinctive pronotal expansions, though specific morphological details for M. parva are limited in available sources. The species has been recorded from the southwestern United States, specifically Arizona and California.
Mistharnophantia sima
Mistharnophantia sima is a planthopper species in the family Flatidae, first described by Doering and Shepherd in 1947. It belongs to the tribe Selizini within the subfamily Flatinae. The species has been recorded from the southwestern United States and northern Mexico. As a member of the Flatidae, it shares the family's characteristic broad, often flattened body form and cryptic coloration typical of many planthoppers.
Monochamus titillator
Southern Pine Sawyer
Monochamus titillator is a large longhorned beetle native to the United States, commonly known as the southern pine sawyer. Adults are notable for their elongated antennae, particularly in males, which may exceed body length. The species develops in pine trees and has been documented to respond to kairomones produced by bark beetles, suggesting ecological interactions with these forest pests. Larvae produce distinctive acoustic signals detectable in the 1000-2800 Hz range, a trait that has been explored for detecting southern pine beetle infestations.
Mula resonans
Mula resonans is a species of planthopper in the family Derbidae, first described by Ball in 1928. The species belongs to the tribe Sikaianini within the subfamily Otiocerinae. Records indicate occurrence in the southeastern United States, specifically Florida, Louisiana, and Mississippi. Very little is known about its biology or ecology.
Mydaea neglecta
Mydaea neglecta is a species of true fly in the family Muscidae, first described by Malloch in 1920. The species belongs to a genus of muscid flies that are widespread in the Holarctic region. Records indicate this species occurs in the northeastern United States, specifically Vermont. As with many Muscidae, detailed biological information remains limited in published literature.
Mydas xanthopterus
Mydas xanthopterus is a species of mydas fly in the family Mydidae. It occurs in North America, specifically in Mexico and the United States. The species is notable for its resemblance to red-winged Pepsis spider wasps, suggesting possible Batesian mimicry. It occurs in sympatry with Pepsis grossa, a large spider wasp species.
Myrmecothea myrmecoides
Myrmecothea myrmecoides is a species of picture-winged fly in the family Ulidiidae, originally described by Loew in 1860. The species name 'myrmecoides' suggests an ant-like appearance. It is recorded from the United States.
Myxosargus nigricormis
Delicate Soldier
Myxosargus nigricormis is a species of soldier fly in the family Stratiomyidae, commonly known as the Delicate Soldier. The species was described by Greene in 1918. It is recorded from the United States, with over 500 observations documented on iNaturalist. As a member of Stratiomyidae, it belongs to a family of flies whose larvae are often associated with decaying organic matter.
Neaneflus fuchsii
Neaneflus fuchsii is a species of longhorn beetle (family Cerambycidae) described by Wickham in 1905. It belongs to the subfamily Cerambycinae and tribe Elaphidiini. The species is distributed in North America and Middle America, with records from Mexico and the United States.
Neaphaenops
Neaphaenops is a monotypic genus of cave-dwelling ground beetles (Carabidae: Trechinae) established by Jeannel in 1920. Its sole species, Neaphaenops tellkampfii, is a troglobitic predator found in cave systems of the United States. The species exhibits subspecific variation in foraging behavior correlated with distinct cave microhabitats.
Nedra stewarti
Nedra stewarti is a moth in the family Noctuidae, first described by Grote in 1875. It is found in California and Oregon. The species belongs to the genus Nedra, which is part of the subfamily Noctuinae. Limited information is available regarding its biology, ecology, and specific habitat requirements.
Nelsonites
Nelsonites is a genus of ground beetles in the family Carabidae, established by Valentine in 1952. The genus contains two described species: Nelsonites jonesei and Nelsonites walteri. Both species are known from the United States. The genus belongs to the tribe Trechini within the subfamily Trechinae.
Nemomydas venosus
Nemomydas venosus is a species of mydas fly (family Mydidae) described by Loew in 1866. The species is known from the United States. Mydas flies are among the largest flies in North America, though specific details for this species remain limited in published literature.
Neoclytus modestus
Neoclytus modestus is a species of longhorned beetle in the family Cerambycidae, described by Fall in 1907. It belongs to the tribe Clytini, a group known for wasp-mimicking species with rapid, jerky movements. The species is poorly documented in the literature compared to congeners such as N. caprea and N. acuminatus. Its distribution includes parts of North America, though specific details remain limited.
Neoclytus torquatus
Neoclytus torquatus is a species of longhorn beetle (family Cerambycidae) in the tribe Clytini. It was described by John Lawrence LeConte in 1873. Like other members of the genus Neoclytus, it is likely a wasp mimic with rapid, darting movements that enhance its resemblance to stinging insects. The species is distributed in North America, with records from the United States and Mexico.
Neocoelidia ramona
Neocoelidia ramona is a species of leafhopper in the family Cicadellidae, first described by Ball in 1916. It is currently recognized as a synonym of Neocoelidia lactipennis. The species belongs to the subfamily Neocoelidiinae and tribe Neocoelidiini. Distribution records indicate occurrence in California, Nevada, and Utah in the western United States.
Neohaemonia nigricornis
Neohaemonia nigricornis is an aquatic leaf beetle in the family Chrysomelidae, subfamily Donaciinae. The species inhabits freshwater environments in North America, with a distribution spanning the northern United States and southern Canada. As a member of the tribe Haemoniini, it shares adaptations for aquatic life with related genera, though specific biological details remain poorly documented in published literature.
Neohecalus lineatus
Neohecalus lineatus is a leafhopper species in the family Cicadellidae, first described by Uhler in 1877. It belongs to the tribe Hecalini within the subfamily Deltocephalinae. Distribution records indicate presence in several eastern and midwestern U.S. states including Colorado, Connecticut, Georgia, Illinois, and Indiana. As a member of the Hemiptera, it possesses piercing-sucking mouthparts typical of true bugs.
Neoilliberis arizonica
Neoilliberis arizonica is a species of forester moth in the family Zygaenidae, described by Tarmann in 1984. It is placed in the tribe Procridini within the subfamily Procridinae. The genus Neoilliberis is part of the diverse Zygaenoidea superfamily, which includes many aposematically colored day-flying moths. Very little is known about the biology or ecology of this particular species.
Neolasioptera allioniae
Neolasioptera allioniae is a gall midge in the family Cecidomyiidae. The species induces galls on plants in the genus Allionia (Nyctaginaceae). It has been recorded from Colorado to Texas, with its range potentially extending more widely based on the distribution of its host plants. The species was described by Felt in 1911.
Neolasioptera clematidis
Neolasioptera clematidis is a gall midge species in the family Cecidomyiidae, first described by Felt in 1907. The specific epithet 'clematidis' suggests an association with plants in the genus Clematis. As with other gall midges, this species likely induces gall formation on host plants.
Neolasioptera impatientifolia
Neolasioptera impatientifolia is a gall midge in the family Cecidomyiidae, first described by Felt in 1907. The species forms galls on jewelweed (Impatiens species), with the specific epithet reflecting this host association. It is one of numerous Neolasioptera species specialized on particular host plants. The species has been documented in the northeastern United States.
Neoleptophlebia mollis
soft prong-gilled mayfly
Neoleptophlebia mollis is a species of prong-gilled mayfly in the family Leptophlebiidae. The species was first described by Eaton in 1871. It belongs to a genus characterized by forked gills on abdominal segments, a trait reflected in the common name "prong-gilled mayfly." The specific epithet "mollis" (Latin for "soft") likely refers to some aspect of the species' morphology or texture.
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.
Neotephritis rava
Neotephritis rava is a tephritid fruit fly species described by Foote in 1960. The genus Neotephritis includes species associated with sunflower hosts, though specific biological details for N. rava remain poorly documented. This species is known only from limited observations in the United States.
Neotibicen latifasciatus
Coastal scissor grinder cicada
Neotibicen latifasciatus is an annual cicada species in the genus Neotibicen, commonly known as the coastal scissor grinder cicada. It was originally described by Davis in 1915 as a variety of Cicada pruinosa. The species is part of the 'scissor grinder' group of cicadas, which produce distinctive buzzing calls. As an annual cicada, it emerges every year rather than in synchronized broods like periodical cicadas.
Nephrotoma wulpiana
Wulp's tiger crane fly
Nephrotoma wulpiana is a tiger crane fly species in the family Tipulidae, historically treated as a subspecies of Nephrotoma suturalis. It is found in the southeastern and south-central United States. The species exhibits the elongated legs and slender body characteristic of crane flies. It has been observed in 2340 records on iNaturalist, indicating it is relatively well-documented.
Nephus flavifrons
yellow-fronted lady beetle
Nephus flavifrons, commonly known as the yellow-fronted lady beetle, is a small lady beetle in the family Coccinellidae. It belongs to a genus of dusky lady beetles characterized by their diminutive size and often subtle coloration compared to more conspicuous lady beetles. The species occurs in North America, with records from Canada and the northeastern United States.
Nepytia pellucidaria
false pine looper, Boreal Pine Looper Moth
Nepytia pellucidaria is a geometrid moth commonly known as the false pine looper. The species was first described by Alpheus Spring Packard in 1873. It occurs in northeastern North America, where its larvae feed on hard pines including pitch pine and red pine. The species has a wingspan of approximately 34–39 mm.
Neriene variabilis
Neriene variabilis is a species of sheetweb spider in the family Linyphiidae, first described by Nathan Banks in 1892. It is known from the United States. As a member of the Linyphiidae, it constructs sheet webs—flat or dome-shaped silk structures used for prey capture. The genus Neriene includes multiple species distributed across North America and Eurasia.
Nersia florida
Nersia florida is a species of planthopper in the family Dictyopharidae, described by Fennah in 1944. It belongs to the tribe Nersiini and is part of the diverse Fulgoroidea superfamily within the order Hemiptera. Distribution records indicate presence in the southeastern United States (Florida, Mississippi, Texas) and Veracruz, Mexico. The species is one of approximately 429 observations recorded on iNaturalist, suggesting it is not exceptionally rare but also not among the most commonly encountered planthoppers.
Norvellina bicolorata
Norvellina bicolorata is a species of leafhopper in the family Cicadellidae, first described by Ball in 1905. The genus Norvellina belongs to the tribe Platymetopiini within the subfamily Deltocephalinae, a diverse group of leafhoppers characterized by their small size and often colorful appearance. Like other members of the family, this species possesses piercing-sucking mouthparts used to feed on plant sap. The specific epithet "bicolorata" suggests a two-colored coloration pattern, though detailed descriptions of its appearance are not readily available in the provided sources.
Norvellina rubida
Norvellina rubida is a species of leafhopper in the family Cicadellidae, described by Ball in 1916. Originally placed in the genus Eutettix, it was later transferred to Norvellina. The genus Norvellina belongs to the tribe Platymetopiini within the subfamily Deltocephalinae. Leafhoppers in this genus are small, plant-feeding insects with piercing-sucking mouthparts. Very little species-specific information has been published for N. rubida.