Transpacific
Guides
Eucapnopsis brevicauda
short-tailed snowfly
Eucapnopsis brevicauda is a small winter stonefly in the family Capniidae, commonly known as the short-tailed snowfly. It has a transpacific distribution spanning North America and eastern Asia, with confirmed records from Canada, the United States, Mongolia, Russia, and South Korea. Adults emerge during late winter to spring and are typically found in association with cold, running water in sub-montane stream habitats. The species was previously misidentified as E. quattuorsegmentata in Korean records.