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.
Near P. memorialis.
This mayfly was collected from the Touchet River in Washington on June 15th, 2011 and added to Troutnut.com by Bnewell on June 26th, 2011.