The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.
Described by Baumann, R.W. (1976) Amphinemura reinerti, a new stonefly from Northern Mexico (Plecoptera: Nemouridae). The Southwestern Naturalist 20, 517–521.