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.
The males have these abbreviated wings. I doubt they can fly but they can run faster than any stonefly I have seen. The also have an interesting habit of jumping.
This stonefly was collected from the Touchet River in Washington on August 3rd, 2011 and added to Troutnut.com by Bnewell on August 3rd, 2011.