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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.

Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
This species was fairly abundant in a February sample of the upper Yakima.
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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Drunella spinifera (Western Slate Olive Dun) Mayfly Nymph Pictures

This species resembles Drunella grandis but the spines tell the story.

This mayfly was collected from 6 mile Creek in Montana on December 19th, 2009 and added to Troutnut.com by Bnewell on June 26th, 2011.


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Drunella spinifera (Western Slate Olive Dun) Mayfly Nymph Pictures

Collection details
Location: 6 mile Creek, Montana
Date: December 19th, 2009
Added to site: June 26th, 2011
Author: Bnewell
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