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.
Gills #1 failing to meet at the center sterna combined with a lack of small dark single spots mid-femur are characters that differentiate Epeorus deceptivus from Epeorus longimanus.
This mayfly was collected from the Gulkana River in Alaska on July 17th, 2011 and added to Troutnut.com by Troutnut on July 20th, 2011.