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.

Two major forks of this grayling stream come together in this pretty pool.

From the Chena River in Alaska

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.

Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Small Gordon Quills

This common name refers to only one species. Click its scientific name to learn more.

Mayfly Species Cinygmula subaequalis

These are often called Small Gordon Quills.

This is the only Eastern species of Cinygmula. It may produce fishable hatches in places but it is not a generally important mayfly.

Cinygmula subaequalis (Small Gordon Quill) Mayfly Nymph

3 Pictures

Dorsal view of a Cinygmula subaequalis (Heptageniidae) (Small Gordon Quill) Mayfly Nymph from Mongaup Creek in New York

I had heard reports of a bright red heptageniid nymph before but never seen one until I found this early instar specimen in a very high water quality small stream in the Catskills.

Collected April 18, 2006 from Mongaup Creek in New York

Added by Troutnut on April 21, 2006

Collected April 18, 2006 from Mongaup Creek in New York and added by Troutnut on April 21, 2006

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