Giant-stoneflies
Guides
Pteronarcella
giant stoneflies, least salmonfly, dwarf salmonfly
Pteronarcella is a genus of giant stoneflies (family Pteronarcyidae) containing at least two described species: Pteronarcella badia (least salmonfly) and Pteronarcella regularis (dwarf salmonfly). These are among the largest stoneflies in North America, with adults known for their distinctive drumming communication behavior. Research on P. badia has provided significant insights into aquatic insect phylogeography and dispersal mechanisms in western North America.