Trans-pacific-distribution
Guides
Eropterus
Eropterus is a genus of net-winged beetles in the family Lycidae, established by Green in 1951. The genus contains approximately 10 described species distributed primarily in North America and East Asia. Species in this genus share the characteristic reticulated elytra typical of Lycidae, with some species displaying distinctive color patterns including yellow or orange markings. The genus includes both historically described species (E. trilineatus, 1846) and more recently described taxa (E. masumotoi, 2011).
Gumaga
bushtailed caddisflies
Gumaga is a genus of bushtailed caddisflies in the family Sericostomatidae, established by Tsuda in 1938. The genus comprises approximately six described species distributed across East Asia and North America. The type species is Gumaga okinawaensis M. Tsuda. Species within this genus are characterized by their association with the bushtailed caddisfly group, a morphologically distinct lineage within Trichoptera.
Margaiostus
Margaiostus is a genus of click beetles (Elateridae) established in 1978. It was long considered restricted to the New World, with species known from North and South America. The genus was first recorded in the Palaearctic region in 2015 with the description of M. sundukovi from the Russian Far East, significantly expanding its known geographic range. The genus belongs to the diverse click beetle family, whose members are characterized by their ability to right themselves using a prosternal process that clicks against the mesosternum.
Oligophlebodes
Oligophlebodes is a genus of caddisflies (order Trichoptera) in the family Uenoidae. It was established by German entomologist Georg Ulmer in 1905. The genus belongs to the subfamily Thremmatinae, a group of case-making caddisflies primarily associated with freshwater habitats. Species in this genus are found in the Northern Hemisphere, particularly in Asia and North America.
Scardia amurensis
Scardia amurensis is a tineid moth with a trans-Pacific distribution, occurring in the Russian Far East, Japan, and eastern North America. Adults have a wingspan of approximately 40 mm. The larvae feed on bracket fungi, specifically species of Globifomes and Fomes.
Tetartopeus niger
Tetartopeus niger is a species of rove beetle in the family Staphylinidae, first described by J.L. LeConte in 1863. It belongs to the tribe Lathrobiini within the subfamily Paederinae. The species has a broad trans-Pacific distribution, occurring across northern North America and East Asia.