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.
This stonefly species was the most common insect over the small stream I fished one August afternoon; I saw dozens in their egg-laying flights.
This stonefly was collected from Enfield Creek in New York on August 24th, 2006 and added to Troutnut.com by Troutnut on August 27th, 2006.