Willowfly
Guides
Oemopteryx
winter stoneflies, willowflies
Oemopteryx is a genus of winter stoneflies in the family Taeniopterygidae, established by Klapálek in 1902. The genus comprises approximately six described species distributed primarily in the Nearctic region, with some records from Europe. Species are commonly known as willowflies, including the dark willowfly (O. contorta) and Canadian willowfly (O. glacialis). Recent taxonomic work has described additional Nearctic species from the southeastern United States using integrated morphological and molecular data.