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Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin
Hex Mayflies
Hexagenia limbata

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.

27" brown trout, my largest ever. It was the sub-dominant fish in its pool. After this, I hooked the bigger one, but I couldn't land it.
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Rhithrogena Mayfly Nymph Pictures

Based on the lack of coloration and the two bars on the last tergite this may be Rhithrogena virilis.

This mayfly was collected from Hungry Horse Creek in Montana on May 12th, 2005 and added to Troutnut.com by Bnewell on June 28th, 2011.


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Rhithrogena Mayfly Nymph Pictures

Collection details
Location: Hungry Horse Creek, Montana
Date: May 12th, 2005
Added to site: June 28th, 2011
Author: Bnewell
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