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.

Stream photos

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Female Hydropsyche (Spotted Sedge) Caddisfly Adult Female Hydropsyche (Spotted Sedge) Caddisfly Adult

Lateral view of a Female Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Columbia River in Washington

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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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Agnetina capitata (Golden Stone) Stonefly Nymph Pictures

Dorsal view of a Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Salmon Creek in New York

Ventral view of a Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Salmon Creek in New York

Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Salmon Creek in New York

This stonefly was collected from Salmon Creek in New York on March 29th, 2006 and added to Troutnut.com by Troutnut on April 7th, 2006.

Discussions of this Nymph

Probably Agnetina capitata

5 replies

Posted by GONZO on Oct 4, 2006

Last reply on Mar 23, 2011 by Jmd123

The row of spinules across the back of the head in combination with the presence of anal gills indicates that Agnetina is the likely genus; and the dorsal pattern appears to be classic capitata.

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