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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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Female Stenonema vicarium (March Brown) Mayfly Dun Pictures

Here's a classic March Brown dun from the Catskills.

Lateral view of a Female Stenonema vicarium (Heptageniidae) (March Brown) Mayfly Dun from the Neversink River in New York
Female Stenonema vicarium (Heptageniidae) (March Brown) Mayfly Dun from the Neversink River in New York
Dorsal view of a Female Stenonema vicarium (Heptageniidae) (March Brown) Mayfly Dun from the Neversink River in New York
Female Stenonema vicarium (Heptageniidae) (March Brown) Mayfly Dun from the Neversink River in New York
Female Stenonema vicarium (Heptageniidae) (March Brown) Mayfly Dun from the Neversink River in New York
Ventral view of a Female Stenonema vicarium (Heptageniidae) (March Brown) Mayfly Dun from the Neversink River in New York

This mayfly was collected from the Neversink River in New York on May 20th, 2007 and added to Troutnut.com by Troutnut on May 21st, 2007.


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Female Stenonema vicarium (March Brown) Mayfly Dun Pictures

Collection details
Location: Neversink River, New York
Date: May 20th, 2007
Added to site: May 21st, 2007
Author: Troutnut
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