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 Frison, T.H. (1935) New North American species of the genus Alloperla (Plecoptera: Chloroperlidae). Transactions of the American Entomological Society 61, 331–344 + Pl. XI-XIV.