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Catops davidsoni
Catops davidsoni is a species of small carrion beetle in the family Leiodidae, described by Salgado in 1999. It belongs to the genus Catops, which comprises beetles commonly associated with decaying organic matter and vertebrate remains. The species is known from scattered localities in eastern North America, with records from Canada (Ontario, Quebec) and the eastern United States.
carrion-beetle Leiodidae saproxylic decomposer eastern-North-America
Cecrita guttivitta
Saddled Prominent
Cecrita guttivitta, commonly known as the Saddled Prominent, is a moth in the family Notodontidae. It is distributed across eastern North America and has been documented in considerable numbers on iNaturalist. The species was described by Walker in 1855. Its taxonomic placement has been subject to some uncertainty, with some sources listing it under the genus Disphragis.
Notodontidae prominent-moth eastern-North-America Lepidoptera
Celithemis
pennants, small pennants
Celithemis is a monophyletic genus of eight dragonfly species in the family Libellulidae, commonly known as pennants or small pennants. Species are primarily distributed in eastern North America. Males of multiple species perch conspicuously on vegetation to defend territories and exhibit resource partitioning through differential perch height selection.
dragonfly skimmer perching territorial eastern-North-America pond lake wetland
Celithemis elisa
Calico Pennant
Celithemis elisa, commonly known as the calico pennant, is a dragonfly species in the family Libellulidae native to eastern North America. Adults are small to medium-sized (24–34 mm body length) with distinctive brown spots at the wing bases and tips. The species inhabits calm freshwater bodies with emergent vegetation and exhibits spatial partitioning of perching microhabitats when co-occurring with congeners.
dragonfly odonata libellulidae freshwater eastern-north-america perching-behavior
Cenopis mesospila
White-tailed Fruitworm, White-tailed Fruitworm Moth
A tortricid moth of eastern North America, historically classified under Sparganothis but now placed in Cenopis. Adults are small moths with distinctive patterning. The common name references both the adult's appearance and its larval association with fruit.
Tortricidae fruitworm pest Rosaceae eastern-North-America nocturnal
Cenopis niveana
Aproned Cenopis Moth
A tortricid moth of eastern North America, historically classified under Sparganothis. The species exhibits the characteristic bell-shaped resting posture of leafroller moths. Adults are active during warmer months, with over 800 observations documented.
leafroller tortricid eastern-North-America Rosaceae-feeder nocturnal
Cephaloscymnus zimmermanni
Zimmermann's lady beetle
Cephaloscymnus zimmermanni is a minute lady beetle in the family Coccinellidae. Adults measure approximately 2.15–2.40 mm in length with a dark piceous to black body. The species occurs in eastern North America, with records from Washington D.C., Ohio, Indiana, Maryland, New Jersey, South Carolina, Tennessee, Virginia, and West Virginia. It belongs to the subfamily Scymninae, a group of small predatory lady beetles.
Coccinellidae lady-beetle minute-beetle eastern-North-America predatory-beetle
Cerastis fishii
Fish's Dart
Cerastis fishii is a noctuid moth of eastern North America, commonly known as Fish's Dart. Adults are active in spring, with a flight period from March through June. The species has a wingspan of 30–36 mm. Larvae feed specifically on blueberry flowers and leaves.
Noctuidae Noctuinae eastern-North-America spring-moth blueberry-feeder Vaccinium
Ceratina mikmaqi
small carpenter bee
Ceratina mikmaqi is a small carpenter bee native to eastern North America, described in 2011. It belongs to a genus of solitary bees that nest in the pith of dead twigs. In southern Ontario, it has been documented as locally common, where it constructs linear nests primarily in Fuller's teasel (Dipsacus fullonum). The species is genetically distinct from its congener C. dupla, with which it was previously confused, separated by five fixed nucleotide differences and approximately 1.86% sequence divergence in DNA barcode analysis.
bee solitary-bee carpenter-bee pollinator native-bee eastern-North-America cryptic-species DNA-barcoding
Chalcophora liberta
northeastern sculptured pine borer, smaller flat-headed pine borer
Chalcophora liberta is one of five North American species in the genus Chalcophora, commonly known as sculptured pine borers. It is among the largest jewel beetles in eastern North America, characterized by its metallic coloration and heavily sculptured exosurface. The species is strictly associated with pine trees (Pinus spp.) and is one of four eastern species in the genus, distinguished from congeners by specific morphological features including coloration and male genitalia structure.
Buprestidae jewel-beetle metallic-wood-boring-beetle pine-borer sculptured-pine-borer forest-beetle xylophagous North-America eastern-North-America
Chalcophora virginiensis
Sculptured Pine Borer
Chalcophora virginiensis, commonly known as the sculptured pine borer, is one of the largest jewel beetles in eastern North America, measuring well over an inch in length. Adults are characterized by their hyper-sculptured, shiny metallic coppery bodies that provide effective camouflage against the bark of dead or dying pine trees. The species is endemic to forested areas of the eastern United States and Canada, where it is strictly associated with pine hosts. Larvae develop within the wood of their host trees, while adults are active during daylight hours and rely on crypsis rather than chemical or physical defenses against predators.
wood-boring-beetle jewel-beetle pine-forest eastern-North-America crypsis camouflage
Chalcosyrphus anthreas
yellow-banded leafwalker
Chalcosyrphus anthreas, commonly known as the yellow-banded leafwalker, is a rare species of syrphid fly found in eastern North America. The species belongs to the family Syrphidae (hoverflies or flower flies), a group known for their ability to remain nearly motionless in flight. Adults are typically found on flowers, where they obtain nectar and pollen. The species was originally described by Walker in 1849 under the basionym Xylota anthreas.
rare eastern-North-America decaying-wood saprophage pollinator
Chalepus bicolor
Chalepus bicolor is a species of leaf beetle in the family Chrysomelidae, subfamily Cassidinae. It is widely distributed across eastern North America, ranging from Ontario, Canada southward throughout the eastern and central United States. Adults are small beetles, measuring 6.3–7.6 mm in length, with distinctive coloration featuring a red pronotum and dark elytra. The species has been documented feeding on several grass species in the genus Dichanthelium and Panicum.
leaf-beetle Cassidinae tortoise-beetle grass-feeder eastern-North-America
Chionodes bicostomaculella
Two-spotted Chionodes Moth
Chionodes bicostomaculella is a small gelechiid moth found in eastern North America. Adults display distinctive dark forewings with ochreous costal spots and irregular transverse banding. Larvae are known to feed on oak species (Quercus). The species was described by Chambers in 1872.
oak-feeder forest-moth eastern-North-America
Chionodes formosella
spring oak leafroller
Chionodes formosella, commonly known as the spring oak leafroller, is a small gelechiid moth found in eastern North America. The species is named for its larval habit of rolling or tying oak leaves. It is associated primarily with oak species, particularly those in the red oak group. The moth has a wingspan of approximately 16 mm.
leafroller oak-feeding spring-active eastern-North-America Gelechiidae
Chrysopilus thoracicus
Golden-backed Snipe Fly
Chrysopilus thoracicus, commonly known as the golden-backed snipe fly, is a species of snipe fly in the family Rhagionidae. It is typically found in woodland habitats of eastern North America. The species is distinguished by its golden or yellowish coloration on the thorax, which gives rise to its common name. Adults are most commonly observed during late spring and early summer months.
Rhagionidae snipe-fly woodland eastern-North-America golden-backed Diptera Chrysopilus insect fly
Cleora projecta
projecta gray, purplish double-lined gray
Cleora projecta is a small geometrid moth native to eastern North America. Adults have a wingspan of approximately 28 mm. The species is known by two common names: "projecta gray" and "purplish double-lined gray," referencing its wing pattern. It is a member of the diverse Geometridae family, commonly known as inchworm or geometer moths.
geometrid-moth eastern-North-America small-moth inchworm-moth
Cliniodes ostreonalis
oystershell metrea moth
Cliniodes ostreonalis is a small crambid moth originally described by Grote in 1882 as Metrea ostreonalis. A 1964 taxonomic revision by Munroe restricted the genus Metrea to this single species, though it was later transferred to Cliniodes. The species occurs in eastern North America with over 300 citizen science observations. It is commonly known as the oystershell metrea moth, though the etymology of this common name remains unclear.
crambid-moth eastern-North-America taxonomic-revision-subject
Coleotechnites apicitripunctella
Green Hemlock Needleminer, Hemlock Leaf Miner, Baldcypress Webworm
A small gelechiid moth whose larvae mine needles of eastern hemlock and bald cypress. The species has one generation annually and occurs in eastern North America. Larvae are distinctive with yellowish-green bodies, orange-brown heads, and dark green spots.
needle-miner conifer-specialist univoltine eastern-North-America
Colladonus clitellarius
Saddled Leafhopper
Colladonus clitellarius, commonly known as the saddled leafhopper, is a small leafhopper species distinguished by a bright green saddle-shaped marking on its back. It occurs in eastern North America, primarily in forested environments of the northeastern United States and southeastern Canada. The species is a documented vector of Cherry X Disease (eastern X-disease virus) in peaches and cherries, and has been recorded as prey for the wasp Clitemnestra bipunctata.
leafhopper vector pest forest agriculture eastern-North-America
Collaria meilleurii
Collaria meilleurii is a species of plant bug in the family Miridae, first described by Provancher in 1872. It is known from eastern North America, with records from Canada and the northeastern United States. The species belongs to the genus Collaria, a group of mirid bugs associated with grasses and sedges.
miridae plant-bug eastern-north-america provancher-1872
Colpotrochia fultoni
Colpotrochia fultoni is a species of ichneumon wasp in the subfamily Metopiinae, first described by Townes & Townes in 1959. Like other members of its genus, it is a parasitoid that develops inside caterpillar hosts. The species is part of a North American genus with four recognized species, all restricted to the eastern United States ranging from the Atlantic coast to just west of the Mississippi River.
parasitoid ichneumon-wasp biological-control Tortricidae eastern-North-America
Coptotriche agrimoniella
Coptotriche agrimoniella is a species of moth in the family Tischeriidae, described by Braun in 1972. The species is known from the eastern United States, where its larvae create leaf mines on two species of Agrimonia (A. parviflora and A. rostellata). As a member of Tischeriidae, it belongs to a small family of moths whose larvae are specialized leaf miners.
leaf-miner specialist-herbivore microlepidoptera eastern-North-America
Coras
Coras is a genus of funnel-web spiders in the family Agelenidae, containing fifteen described species found exclusively in eastern North America. The genus was established by Eugène Simon in 1898 after complex taxonomic revisions involving multiple family placements. These spiders are distinguished by their eye arrangement and build smaller funnel webs with multiple retreats, often in forested habitats and human structures.
funnel-web-spider forest-spider building-dwelling eastern-North-America multiple-retreats hibernating-spider
Cordulegaster erronea
tiger spiketail
Cordulegaster erronea, the tiger spiketail, is a large, uncommon dragonfly in the family Cordulegastridae. It is a habitat specialist requiring small, pristine, spring-fed forest streams with muck bottoms and overhanging vegetation. The species has a long larval period estimated at 3-4 years and a brief adult flight period of approximately 2-3 weeks in early summer. Radio-telemetry studies in New Jersey have revealed limited adult movement, with individuals typically remaining within 100-200 meters of natal streams and showing strong site fidelity.
dragonfly spiketail habitat-specialist forest-stream radio-telemetry conservation New-Jersey Cordulegastridae Odonata indicator-species headwater-streams metapopulation territorial-behavior crepuscular-activity long-larval-development site-fidelity mature-forest-dependent spring-fed-streams muck-bottom-streams overhanging-vegetation shaded-streams limited-dispersal fragmented-populations pristine-habitat aquatic-nymph ovipositor early-summer-emergence brief-adult-life canopy-use easily-disturbed human-disturbance-sensitive top-predator stream-ecosystem conservation-concern IUCN-Least-Concern stable-population eastern-North-America patchy-distribution localized-populations territorial-males patrolling-behavior oviposition-in-organic-matter specialized-habitat-requirements forest-protection-needed regulatory-protection-insufficient aquatic-insect odonate Anisoptera Cordulegastroidea Selys-1878 tiger-spiketail uncommon-species rare-encounters field-identification-challenge 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Corticoris pulchellus
Corticoris pulchellus is a species of plant bug in the family Miridae, order Hemiptera. This small true bug is known from scattered records across the eastern United States. The specific epithet "pulchellus" (Latin for "little beautiful") suggests distinctive coloration or patterning, though detailed descriptions of its appearance remain limited in available sources.
Miridae plant-bug Hemiptera eastern-North-America Heidemann-1908
Cosmopterix clandestinella
Cosmopterix clandestinella is a small moth in the family Cosmopterigidae, with forewings measuring 3.2–3.7 mm. The species is distributed in the eastern United States and exhibits two generations annually. Adults are active in late May to early June and again in late July through August. The larvae are leaf miners on Dichanthelium clandestinum, constructing irregular longitudinal blotch mines.
leaf-miner grass-feeding bivoltine eastern-North-America
Crambidia uniformis
Uniform Lichen Moth
Crambidia uniformis, commonly known as the uniform lichen moth, is a small moth species in the family Erebidae. It was first described by Harrison Gray Dyar Jr. in 1898. The species is characterized by its relatively uniform coloration and modest size, with a wingspan ranging from 12–18 mm. It is distributed across eastern North America, where it inhabits a variety of terrestrial environments.
small-moth eastern-North-America lichen-moth uniform-coloration
Crambus praefectellus
common grass-veneer, silver-striped webworm
A small grass moth in the family Crambidae, widespread across eastern North America. Adults are active from spring through fall, with extended or year-round activity in the southernmost parts of its range. Larvae develop within silken webs on grasses and cereal grains.
grass-moth grassland agricultural-pest webworm eastern-North-America
Cratichneumon w-album
Cratichneumon w-album is a species of ichneumon wasp in the family Ichneumonidae, first described by Cresson in 1864. The species name refers to the distinctive white 'W'-shaped marking on the forewings. It is a moderately-sized parasitoid wasp with documented observations across eastern North America.
ichneumonidae parasitoid-wasp wing-pattern eastern-north-america cresson-1864
Cryptolabis paradoxa
Cryptolabis paradoxa is a species of crane fly in the family Limoniidae, first described by Osten Sacken in 1860. It belongs to a genus of small, delicate flies commonly found in moist terrestrial habitats. The species occurs across eastern North America from Ontario and the Canadian Maritimes south to Arkansas, Tennessee, and Florida.
crane-fly Limoniidae Nearctic eastern-North-America Osten-Sacken-1860
Cupes capitatus
Prominent-headed Reticulated Beetle
Cupes capitatus is the sole extant species in the genus Cupes, a relict lineage within the family Cupedidae. Described by Fabricius in 1801, this beetle represents one of the few living members of an ancient group of beetles with distinctive reticulated wing covers. Its restricted distribution in eastern North America and its phylogenetic isolation make it of particular interest for studies of beetle evolution and biogeography.
relict reticulated-beetle Cupedidae eastern-North-America monotypic-genus Fabricius-1801 archostematan-beetle living-fossil
Cupido comyntas
Eastern Tailed-Blue, Eastern Tailed Blue
Cupido comyntas, commonly known as the eastern tailed-blue, is a medium-sized butterfly native to eastern North America. It is distinguished from other blue butterflies in its range by the presence of a small thin tail on each hindwing. The species has been observed in laboratory settings by researchers studying butterfly ecology and pesticide toxicology, and is considered a favorite among some entomologists due to its accessibility for study.
butterfly Lycaenidae eastern-North-America tailed-blue legume-feeder research-model
Cyparium concolor
Cyparium concolor is a rove beetle in the subfamily Scaphidiinae, a group commonly known as shining fungus beetles. The species was described by Fabricius in 1801 and is native to eastern North America. Scaphidiine beetles are generally associated with fungal substrates, though specific ecological details for C. concolor remain limited.
rove-beetle shining-fungus-beetle eastern-North-America Staphylinidae Scaphidiinae Coleoptera Fabricius-1801
Cyrtolobus ovatus
Cyrtolobus ovatus is a treehopper species in the family Membracidae, first described by Van Duzee in 1908. Members of this genus are characterized by their distinctive pronotal projections. The species is documented from scattered localities in the eastern United States. Like other membracids, it is presumed to feed on plant phloem sap, though specific host associations for this species remain poorly documented.
treehopper Membracidae Smiliinae eastern-North-America Van-Duzee-1908
Cyrtolobus vau
Cyrtolobus vau is a small oak-feeding treehopper in the family Membracidae. First described by Thomas Say in 1830, it is one of the more frequently observed treehoppers in eastern North America, with over 1,100 records on iNaturalist. The species exhibits sexual dimorphism in pronotal crest height.
treehopper oak-specialist sexual-dimorphism eastern-North-America
Dactylolabis montana
Dactylolabis montana is a species of limoniid crane fly inhabiting madicolous environments in eastern North America. The species develops in thin water films on rock surfaces, with distinct larval and pupal stages described. It occurs from Ontario and Newfoundland south to Kansas, Arkansas, Mississippi, Tennessee, and South Carolina.
crane-fly limoniid madicolous hygropetric aquatic-insect Nearctic eastern-North-America rock-surface-habitat Diptera Tipulomorpha
Dalmosella tenuis
Dalmosella tenuis is a species of rove beetle in the family Staphylinidae, subfamily Pselaphinae. It is a small beetle belonging to the tribe Trichonychini within the diverse Pselaphinae, a group known for their compact bodies and reduced elytra. The species was described by Thomas L. Casey in 1897 and occurs across eastern North America.
Staphylinidae Pselaphinae rove-beetle North-America Casey-1897 Trichonychini Dalmosella Coleoptera beetle insect arthropod Animalia Insecta Polyphaga Staphyliniformia Staphylinoidea Euplectitae Trimiina New-Brunswick Alabama District-of-Columbia Florida Georgia Kentucky Louisiana Massachusetts Maine Mississippi North-Carolina New-Hampshire New-Jersey Ohio Oklahoma Pennsylvania Tennessee Virginia USA Canada eastern-North-America
Darapsa choerilus
Azalea Sphinx
Darapsa choerilus, commonly known as the azalea sphinx, is a sphinx moth in the family Sphingidae. It occurs in eastern North America from the United States through southern Canada. The species was first described by Pieter Cramer in 1779. Adults are medium-sized moths with a wingspan of 57–75 mm. Larvae feed on azalea (Rhododendron) and Viburnum species.
sphingidae sphinx-moth hornworm eastern-north-america azalea-pest
Darapsa versicolor
Hydrangea Sphinx
Darapsa versicolor is a sphinx moth (Sphingidae) native to eastern North America. Adults have a wingspan of 58–80 mm with green-brown forewings marked by curved white patches. The species is strongly associated with wetland habitats. Larvae feed on specific host plants including wild hydrangea, buttonbush, and water-willow.
sphingidae sphinx-moth wetland eastern-north-america hydrangea buttonbush riparian
Derrima stellata
pink star moth
Derrima stellata, commonly known as the pink star moth, is a small noctuid moth native to eastern North America. The species has a wingspan of 21–30 mm and exhibits bivoltine flight periods in spring and summer. It was historically notable among lepidopterists for its poorly understood life history, which was resolved in 2024 when larvae were discovered feeding on seeds of dead pinweed (Lechea species). The species is listed as a species of special concern in Connecticut, reflecting apparent rarity or habitat loss in parts of its range.
Noctuidae Heliothinae pink-star-moth pinweed Lechea bivoltine species-of-special-concern Connecticut life-history-resolved-2024 seed-feeder eastern-North-America
Diastrophus potentillae
cinquefoil bud gall wasp
Diastrophus potentillae is a gall wasp in the family Cynipidae that induces bud galls on cinquefoil plants. The species is known from eastern North America, with records from Canada and the northeastern United States. It has been documented on Potentilla canadensis and P. simplex as host plants.
gall-wasp Cynipidae gall-induction Potentilla eastern-North-America
Dicerca lurida
Hickory Jewel Beetle
Dicerca lurida is a jewel beetle in the family Buprestidae, commonly known as the Hickory Jewel Beetle. Adults measure 12–20 mm and display cryptic coloration that renders them nearly invisible against tree bark despite their metallic luster when viewed as pinned specimens. The species is strongly associated with hickory trees (Carya spp.) and is one of the most common jewel beetles in eastern North America. Unlike most jewel beetles with restricted seasonal activity, D. lurida occurs year-round as adults, including winter hibernation under loose bark.
Buprestidae Chrysochroinae wood-borer hickory cryptic-coloration year-round-activity jewel-beetle eastern-North-America Carya Cerceris-fumipennis-prey
Dichelonyx diluta
Dichelonyx diluta is a species of scarab beetle in the family Scarabaeidae, described by Fall in 1901. It is a small scarab belonging to the tribe Dichelonychini, a group commonly known as May beetles or June beetles. The species is distributed across northeastern North America, with records from both the United States and Canada.
scarabaeidae melolonthinae dichelonychini may-beetle june-beetle nearctic eastern-north-america
Dichomeris ligulella
palmerworm, Palmerworm Moth
Dichomeris ligulella, commonly known as the palmerworm, is a small gelechiid moth native to eastern North America. Adults are active from spring through fall with a single generation per year. The species is economically notable as a foliar feeder on several hardwood trees and orchard crops.
Gelechiidae eastern-North-America foliar-feeder orchard-pest univoltine hardwood-feeder
Dichomeris ochripalpella
Shining Dichomeris Moth
A small gelechiid moth found in eastern North America. Adults are recognized by distinctive steel-blue metallic markings on deep brown forewings. The species was described by Zeller in 1873. Larvae are known to feed on plants in the Asteraceae family.
metallic-markings Asteraceae-feeder eastern-North-America
Dichomeris siren
Least Dichomeris Moth
Dichomeris siren is a small gelechiid moth described by Ronald W. Hodges in 1986. It is known from the eastern United States, with records spanning from the Mid-Atlantic through the Southeast and into the Midwest. The species is characterized by its diminutive size, with forewing lengths of 3.1–3.8 mm. Adults are active from late spring through early autumn.
microlepidoptera eastern-North-America small-size
Dichomeris vacciniella
Dichomeris vacciniella is a small gelechiid moth described by August Busck in 1915. It occurs across eastern North America from Canada to the southern United States. The species is associated with Vaccinium plants, with larvae feeding on cranberry and related species. Adults are active throughout much of the year, with records spanning February through October.
cranberry-moth blueberry-pest eastern-North-America Gelechiidae Vaccinium-feeder
Digrammia ocellinata
Faint-spotted Angle, Locust Looper
Digrammia ocellinata is a geometrid moth commonly known as the faint-spotted angle or locust looper. First described by Achille Guenée in 1857, it occurs across the eastern United States and southern Canada. The species is notable for its larval association with leguminous trees, particularly black locust and honey locust.
geometridae geometrid-moth eastern-north-america legume-feeder nocturnal blacklight-attracted
Dioryctria clarioralis
Blister Coneworm Moth
Dioryctria clarioralis, commonly known as the blister coneworm moth, is a species of pyralid moth found in the eastern United States. The larvae feed on various Pinus species, particularly attacking flower clusters and shoots. The species is part of a genus whose members are generally known as coneworm moths due to larval feeding habits in conifer cones and shoots.
Pyralidae Phycitinae coneworm-moth pine-pest eastern-North-America Pinaceae conifer-feeder concealed-feeder larval-cone-borer shoot-borer