Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.
Described by Stark, B.P. (1989) Perlesta placida (Hagen), an eastern Nearctic species complex (Plecoptera: Perlidae). Entomologica Scandinavica 20, 263–286.