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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.

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.
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.

Female Suwallia pallidula (Little Yellow Stonefly) Stonefly Adult Pictures

I collected a few of these throughout the afternoon. The positive ID on the adults allowed me to also put a species ID on the nymphs.

Ruler view of a Female Suwallia pallidula (Chloroperlidae) (Sallfly) Stonefly Adult from Mystery Creek #199 in Washington The smallest ruler marks are 1 mm.
Lateral view of a Female Suwallia pallidula (Chloroperlidae) (Sallfly) Stonefly Adult from Mystery Creek #199 in Washington
Female Suwallia pallidula (Chloroperlidae) (Sallfly) Stonefly Adult from Mystery Creek #199 in Washington
Ventral view of a Female Suwallia pallidula (Chloroperlidae) (Sallfly) Stonefly Adult from Mystery Creek #199 in Washington
Female Suwallia pallidula (Chloroperlidae) (Sallfly) Stonefly Adult from Mystery Creek #199 in Washington
Female Suwallia pallidula (Chloroperlidae) (Sallfly) Stonefly Adult from Mystery Creek #199 in Washington
Female Suwallia pallidula (Chloroperlidae) (Sallfly) Stonefly Adult from Mystery Creek #199 in Washington
Female Suwallia pallidula (Chloroperlidae) (Sallfly) Stonefly Adult from Mystery Creek #199 in Washington
Dorsal view of a Female Suwallia pallidula (Chloroperlidae) (Sallfly) Stonefly Adult from Mystery Creek #199 in Washington

This stonefly was collected from Mystery Creek #199 in Washington on July 28th, 2019 and added to Troutnut.com by Troutnut on July 29th, 2019.


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Female Suwallia pallidula (Little Yellow Stonefly) Stonefly Adult Pictures

Collection details
Location: Mystery Creek #199, Washington
Date: July 28th, 2019
Added to site: July 29th, 2019
Author: Troutnut
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