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 Baumann, R.W. & Grubbs, S.A. (1996) Two new species of Soyedina (Plecoptera: Nemouridae) from the Appalachian Mountains. Entomological News 107, 220–224.