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 one hatched on the same April Saturday that I saw the first Hendricksons of the season.
This mayfly was collected from the Namekagon River in Wisconsin on April 24th, 2004 and added to Troutnut.com by Troutnut on January 25th, 2006.