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 Kondratieff, B.C. & Kirchner, R.F. (1996) Two new species of Hansonoperla (Plecoptera: Perlidae) from eastern North America. Annals of the Entomological Society of America 89, 501–509.