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.
These photos were contributed by Spencer Vanderhoof.
This mayfly was collected from the Au Sable River (Mainstream) in Michigan on May 15th, 2010 and added to Troutnut.com by Entoman on March 3rd, 2012.