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 specimen was 22 mm.
This caddisfly was collected from Mystery Creek #178 in Idaho on September 15th, 2013 and added to Troutnut.com by Entoman on September 23rd, 2013.