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 Stanger, J.A. & Baumann, R.W. (1993) A revision of the stonefly genus Taenionema (Plecoptera: Taeniopterygidae). Transactions of the American Entomological Society 119, 171–229.