Transatlantic-distribution
Guides
Berkshiria
Berkshiria is a genus of soldier flies in the family Stratiomyidae, established by Johnson in 1914. The genus contains two described species: B. albistylum (North America) and B. hungarica (Europe). It belongs to the subfamily Pachygastrinae, a group of small to medium-sized stratiomyid flies often associated with decaying organic matter.
Bitoma crenata
Crenate Cylindrical Bark Beetle
Bitoma crenata is a species of cylindrical bark beetle in the family Zopheridae. It has a transatlantic distribution, occurring in both North America and Europe. The species was originally described by Fabricius in 1775 under the name Lyctus crenatus. It is one of the more frequently observed species in its genus, with over 1,000 documented observations on iNaturalist.
Blemus discus
Discus Riverbank Ground Beetle
Blemus discus is a ground beetle species in the genus Blemus, family Carabidae. It has been recorded across parts of North America and Eurasia. The species belongs to the tribe Trechini, a group of small carabid beetles often associated with riparian and moist habitats. The specific epithet "discus" refers to the disc-like body shape characteristic of this species.
Bruchidius terrenus
Bruchidius terrenus is a seed beetle (Chrysomelidae: Bruchinae) first described by Sharp in 1886. The species has been recorded across parts of Europe (Bulgaria, France, Romania) and the conterminous United States, though its North American presence may represent introduction. Like other Bruchidius species, it is a seed-feeding beetle whose larvae develop inside legume seeds. The species has been treated under the genus Pygobruchidius in some classifications, reflecting ongoing taxonomic uncertainty in this group.
Cochylichroa hoffmanana
Hoffman's Cochylid Moth, Hoffman's cochlid moth
Cochylichroa hoffmanana, known as Hoffman's Cochylid Moth, is a small tortricid moth with a wingspan of 11–12 mm. It was described by William D. Kearfott in 1907 and transferred from the genus Cochylis to the redefined genus Cochylichroa in 2019 based on phylogenetic analysis. The species has a transatlantic distribution, occurring in France and across much of eastern and central North America.
Cosmopterix pulchrimella
Beautiful Cosmopterix Moth
Cosmopterix pulchrimella is a small moth in the family Cosmopterigidae, with a forewing length of 3.0–4.0 mm. It is distinguished by striking wing patterns including silver streaks, a bright orange transverse fascia, and metallic markings. The species has a transatlantic distribution, occurring in North America and across the Palearctic region. Larvae are leaf miners that feed on plants in the Urticaceae family.
Lithomoia
Lithomoia is a genus of moths in the family Noctuidae, subfamily Noctuinae, tribe Xylenini. The genus contains two recognized species: Lithomoia germana and Lithomoia solidaginis. According to Catalogue of Life, Lithomoia is currently treated as a synonym of Xylena, though it remains in use in some sources. Species in this genus are associated with northern temperate regions.
Oxypselaphus
Oxypselaphus is a genus of ground beetles in the family Carabidae, established by Chaudoir in 1843. The genus comprises four recognized species distributed across the Northern Hemisphere, including Europe and North America. Members of this genus are classified within the subfamily Platyninae, tribe Platynini. The genus includes both Palearctic and Nearctic species, with O. obscurus being the most widespread and historically documented species.
Pseudanostirus
Pseudanostirus is a genus of click beetles (Elateridae) established by Dolin in 1964. The genus is distributed across parts of northern Europe and North America, with documented records from Norway, Sweden, and the northeastern United States including Vermont. As a member of the click beetle family, species in this genus possess the characteristic prosternal process that enables the defensive clicking mechanism. The genus contains multiple species, though specific ecological details remain limited in published literature.
Rhizophagus parallelocollis
graveyard beetle
Rhizophagus parallelocollis, commonly known as the graveyard beetle, is a small root-eating beetle in the family Monotomidae. It occurs in both North America and Europe. The species is characterized by its parallel-sided pronotum, a trait reflected in its specific epithet. Like other members of its genus, it is associated with subterranean habitats and fungal associations.
Rhyssemus puncticollis
Rhyssemus puncticollis is a small dung beetle species in the family Scarabaeidae, first described by Brown in 1929. The species has been recorded from both the Palaearctic region (central and eastern Europe) and the Nearctic region (Ontario, Canada), indicating a transatlantic distribution. It belongs to the tribe Psammodiini, which typically includes species associated with sandy or psammophilous habitats. The specific epithet 'puncticollis' refers to punctation on the pronotum.
Rolandylis maiana
Kearfott's Rolandylis, Kearfott's rolandylis moth
Rolandylis maiana is a small tortricid moth found primarily in eastern North America, with a disjunct population in southern France. The species was originally described as Cochylis maiana by Kearfott in 1907 and later transferred to the genus Rolandylis. It is one of relatively few tortricid species with a documented transatlantic distribution pattern. The 94 iNaturalist observations suggest it is encountered infrequently but with some regularity by naturalists.
Tolype velleda
Large Tolype Moth, Velleda Lappet Moth
A medium-sized lappet moth with broad, rounded wings. Adults display dark gray forewings with distinct wavy transverse bands and white lines visible when wings are spread. Females are noticeably larger than males. The species has a broad distribution across eastern North America with disjunct populations in western mountain ranges and the Mediterranean region. Single-brooded, with adults active from early summer through late autumn.
Vitula edmandsii
Dried Fruit Moth, American Wax Moth, Dried-fruit Moth
Vitula edmandsii, commonly known as the Dried Fruit Moth or American Wax Moth, is a snout moth in the family Pyralidae. The species was described by Packard in 1865 and exhibits a transatlantic distribution, occurring in both Europe and North America. It comprises two recognized subspecies: the nominate V. e. edmandsii in Europe and eastern North America, and V. e. serratilineella (beehive honey moth) in western North America. The latter subspecies is sometimes treated as a full species due to ecological and geographic distinctions.