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. (1983) The Tallaperla maria complex of eastern North America (Plecoptera: Peltoperlidae). Journal. Kansas Entomological Society 56, 398–410.