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.
Egg-laying females of this species were the most noticeable insect over the water at dusk on this small trout stream in Wisconsin's Blue Hills. I caught several of them along with one male netted in mid-air mated to one of the females.
This mayfly was collected from Devil's Creek in Wisconsin on June 14th, 2021 and added to Troutnut.com by Troutnut on June 21st, 2021.