Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana

Salmonflies
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

Stream photos

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Re: Trico emergers
In the Mayfly Genus Tricorythodes by Bwoklink (Martinlf replied)

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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.

Site updates from July 31, 2007

Closeup insects by Bnewell from Flathead Lake and Kintla Lake in Montana

Paraleptophlebia bicornuta (Mahogany Dun) Mayfly Nymph

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Paraleptophlebia bicornuta (Leptophlebiidae) (Mahogany Dun) Mayfly Nymph from Flathead Lake in Montana

This species is interesting because it is common in lakes as well as streams. It is one of the last species of the year to emerge in western Montana. Adults have been collected as late as October 15 weather permitting.

Collected July 30, 2007 from Flathead Lake in Montana

Added by Bnewell on June 26, 2011

Collected July 30, 2007 from Flathead Lake in Montana and added by Bnewell on June 26, 2011

Ecdyonurus criddlei (Little Slate-Winged Dun) Mayfly Nymph

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