Northeastern-north-america
Guides
Acronicta hastulifera
Frosted Dagger Moth
Acronicta hastulifera, commonly known as the frosted dagger moth, is a species of owlet moth in the family Noctuidae. First described by James Edward Smith in 1797, it is native to the northeastern United States with a range extending south to Georgia. The species is part of a complex that includes the large gray dagger moth, and its larvae feed on various hardwood trees.
Aleochara thoracica
Aleochara thoracica is a species of rove beetle in the family Staphylinidae, tribe Falagriini. The species was described by Stephens in 1832 and is currently accepted under this name, though it has been classified under the genus Falagrioma in some treatments. It occurs in northeastern North America, with records from Canada and the United States. Very little is known about its biology or ecology.
Brathinus varicornis
Brathinus varicornis is a species of rove beetle in the family Staphylinidae, subfamily Omaliinae. It was described by John Lawrence LeConte in 1852. The species occurs in northeastern North America, with records from Canada and the northeastern United States. Very few observations of this species have been documented, with only two records in iNaturalist as of the data cutoff.
Chalcosyrphus chalybeus
violet leafwalker
Chalcosyrphus chalybeus, commonly known as the violet leafwalker, is a species of syrphid fly (flower fly) found in the northeastern United States and adjacent Canada. Adults are characterized by their all-black coloration with a distinctive steely blue or violet metallic sheen. Unlike many syrphid flies, this species shows a strong association with dead wood rather than flowers. The larvae develop in decaying wood as saprophages, while adults are known to visit flowers for nectar and pollen. Males possess holoptic (contiguous) eyes, a trait unusual among syrphid flies.
Coelioxys modestus
Modest Sharptail
Coelioxys modestus is a species of solitary bee in the family Megachilidae, commonly known as the Modest Sharptail. It is a cleptoparasitic bee that targets other Megachilidae, particularly leafcutter bees (Megachile). The species occurs in North America, with records from the northeastern United States including Vermont. Like other Coelioxys, females possess a distinctive pointed abdomen adapted for inserting eggs into host nests.
Dianthidium simile
Northeastern Pebble Bee
Dianthidium simile is a solitary bee species in the family Megachilidae, commonly known as the Northeastern Pebble Bee. It belongs to a group of bees known as resin bees, mason bees, and leafcutter bees, reflecting the diverse nesting materials used by members of this family. The species is native to North America, with confirmed records from the northeastern United States including Vermont. Like other Dianthidium species, it constructs nests using plant resins and other materials, and is subject to parasitism by specialized wasps such as leucospids.
Dolerosomus silaceus
Siliceous Click Beetle
Dolerosomus silaceus is a click beetle in the family Elateridae, commonly known as the Siliceous Click Beetle. The species was described by Thomas Say in 1825 and is native to northeastern North America. It is a moderately well-documented species with over 300 citizen science observations recorded on iNaturalist.
Elater abruptus
Abrupt Click Beetle
Elater abruptus is a species of click beetle in the family Elateridae. It is found in eastern Canada and the northeastern United States. Like other click beetles, it possesses the distinctive prosternal spine and mesosternal notch mechanism that produces an audible click when the beetle flexes its body. The species was described by Thomas Say in 1825.
Epinotia medioviridana
Epinotia medioviridana is a poorly known tortricid moth described from Ottawa, Ontario in 1908. The species remained represented by very few specimens until 1951, when larvae were discovered on flowering raspberry (Rubus odoratus) in Quebec, providing the first documentation of its life history. Adults have been recorded from scattered localities in northeastern North America, but the species appears genuinely rare in collections.
Eratoneura manus
Eratoneura manus is a leafhopper species in the family Cicadellidae, first described by Beamer in 1932. As a member of the subfamily Typhlocybinae, it shares the characteristic brochosome-producing capabilities common to this group. The species has been recorded in the northeastern United States, specifically New Hampshire and New York. Like other Eratoneura species, it likely feeds on plant phloem sap.
Erythridula stolata
Erythridula stolata is a species of leafhopper in the family Cicadellidae, subfamily Typhlocybinae. Like other members of the genus, it is a small, plant-feeding insect that feeds on sap. The species was described by McAtee in 1920. Records indicate it occurs in northeastern North America, with observations from Maryland north to New Brunswick and Ontario.
Eupsilia schweitzeri
Schweitzer's Sallow
Eupsilia schweitzeri is a moth species in the family Noctuidae, described in 2016 from the northeastern United States. It belongs to the sallow moth genus Eupsilia, which are medium-sized noctuid moths active during late fall, winter, and early spring. The species was named in honor of entomologist Dale F. Schweitzer. Like other members of its genus, it is likely a cold-season active adult with larvae feeding on woody plants.
Hadromorphus inflatus
Hadromorphus inflatus is a species of click beetle (Elateridae) native to northeastern North America. The species was previously classified under the genus Porrhodites and has been identified as a potential subnivium specialist—an arthropod adapted to the air pocket beneath winter snowpack. Research suggests it dominates subnivium communities during winter months and is rare or inactive during summer, indicating a specialized cold-season life history.
Hypatopa vestaliella
Hypatopa vestaliella is a small moth species in the family Blastobasidae. It was originally described under the genus Holcocera before being transferred to Hypatopa. The species is known from the northeastern United States, with confirmed records from Maryland, Massachusetts, Pennsylvania, and Maine.
Isogenoides hansoni
Appalachian springfly
Isogenoides hansoni, known as the Appalachian springfly, is a species of stonefly in the family Perlodidae. It has been documented in northeastern North America, including the northeastern United States and southeastern Canada. The species communicates through vibrational drumming, a behavior shared with other members of its genus. It was first described by Ricker in 1952.
Judolia cordifera
Chestnut Longhorn Beetle
Judolia cordifera is a species of longhorned beetle in the family Cerambycidae, described by Olivier in 1795. It belongs to the subfamily Lepturinae, a group commonly known as flower longhorns due to their frequent association with blossoms. The species has been recorded in northeastern North America including Québec, Vermont, and surrounding regions. It has been observed on flowers during summer months, where adults feed on nectar and pollen.
Melissodes desponsus
Eastern Thistle Longhorn Bee
Melissodes desponsus is a solitary, ground-nesting longhorn bee native to northeastern North America. Females are oligolectic specialists on Cirsium thistles, collecting white pollen that often obscures their distinctive orange scopae. The species is active in mid-to-late summer and has been assessed as vulnerable or imperiled in several regional conservation evaluations, though it lacks a comprehensive rangewide status assessment.
Microgoes oculatus
Microgoes oculatus is a longhorn beetle (family Cerambycidae) and the sole member of its genus. First described by LeConte in 1862, this species occurs in northeastern North America. The specific epithet "oculatus" refers to eye-like markings, a common trait among unrelated beetles bearing this name.
Oncopsis flavidorsum
Oncopsis flavidorsum is a species of leafhopper in the family Cicadellidae. It has been documented in northeastern North America, with records from New Hampshire, New York, Pennsylvania, Newfoundland and Labrador, and Nova Scotia. The species was originally described by Amyot and Audinet-Serville in 1843. Like other Oncopsis species, it is associated with birch (Betula) host plants.
Ossiannilssonola clymene
Ossiannilssonola clymene is a species of leafhopper in the family Cicadellidae, subfamily Typhlocybinae. The genus Ossiannilssonola belongs to the tribe Typhlocybini, a group of small, often inconspicuous leafhoppers that feed on plant phloem. This species was described by McAtee in 1926. Distribution records indicate occurrence in northeastern North America, including New Brunswick, New Hampshire, New York, Nova Scotia, and Ontario.
Phalonidia memoranda
Phalonidia memoranda is a small tortricid moth described by Razowski in 1997. It occurs in northeastern North America, with records from Ontario, Quebec, and several northeastern US states. The species has a wingspan of approximately 11 mm. Adults are active in May and July.
Serica elusa
Serica elusa is a small scarab beetle in the family Scarabaeidae, first described by Dawson in 1919. Adults measure approximately 10 mm in length and are characterized by their chestnut-brown coloration with a polished, shining upper surface lacking any sericeous or pruinose luster. The species is restricted to the northeastern Nearctic region, occurring in parts of Canada and the northeastern United States.
Sericomyia transversa
Yellow-spotted Pond Fly
Sericomyia transversa is an uncommon syrphid fly found in northeastern North America. Adults, known as hoverflies or flower flies, are capable of nearly motionless flight and are commonly observed visiting flowers for nectar and pollen. The species belongs to a genus whose larvae are known as rat-tailed maggots, possessing an extensible posterior breathing siphon that allows them to inhabit aquatic environments. The species was first described by Osburn in 1926.
Stenocorus cinnamopterus
Cinnamon-winged Flower Longhorn
Stenocorus cinnamopterus is a longhorn beetle in the family Cerambycidae, commonly known as the Cinnamon-winged Flower Longhorn. The species is characterized by brown body coloration with distinctive orange legs. It occurs in the northeastern United States and adjacent Canada. Adults are associated with flowers and are attracted to fermenting baits.
Stonemyia tranquilla
peaceful stonian horsefly
Stonemyia tranquilla is a non-biting horsefly species in the family Tabanidae, notable for being one of the few tabanid flies that does not require blood meals for reproduction. The species reaches approximately 1.5 cm in length and is distinguished from its relatives by its non-hematophagous biology. It occurs primarily in northeastern North America, with scattered records extending south to North Carolina and west to the Midwest.
Temnostoma venustum
black-banded falsehorn
Temnostoma venustum is a rare syrphid fly (flower fly) found in the northeastern United States and adjacent Canada. Adults are wasp mimics with darkened wing margins and leg-waving behavior that simulates wasp antennae. Larvae develop in moist decayed wood.
Temnothorax americanus
Slave-raiding Acorn Ant
Temnothorax americanus is an obligatory slave-making ant species endemic to the northeastern United States and adjacent Canadian regions. Adults measure 2–3 mm in length. The species does not forage for food; instead, scout workers locate nearby host colonies, raid them for larvae and pupae, and integrate these into their own colony as slave workers. A typical colony consists of a queen, two to five workers, and thirty or more slaves. The species is a member of the tribe Crematogastrini within the subfamily Myrmicinae.