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.
I collected this uncooperative specimen as part of a small cloud of female spinners clustered tightly together high about 10 feet above the water, without any males that I could see.
This mayfly was collected from the Namekagon River in Wisconsin on June 21st, 2005 and added to Troutnut.com by Troutnut on May 26th, 2006.