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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.

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.

Male Strophopteryx fasciata (Mottled Willowfly) Stonefly Adult Pictures

This stonefly was collected from the Namekagon River in Wisconsin on March 18th, 2004 and added to Troutnut.com by Troutnut on January 25th, 2006.

Discussions of this Adult

Season Start
5 replies
Posted by Flybyknight on Dec 22, 2007
Last reply on Dec 24, 2007 by Martinlf
Strophopteryx fasciata is the second fly on my hatch chart; the first being Taeniopteryx navalis. Dreadful sounding names to be sure, conjuring up images of prehistoric monsters, but first seeing these benign little creatures bring me much happiness for the dawn of the fly fishing season has begun.

Schweibert discusses S. fascita on p. 64 in "Nymphs"

Often I see them in early March on snow banks and wonder how they can adapt to that. I fish my nymph ties on the bottom of fast riffles just before deep quiet pools, and have more success that way than with drys until about early May. At that time I sometimes have success fishing drys at the mouths of small feeder streams leading into the river.

Dick

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Male Strophopteryx fasciata (Mottled Willowfly) Stonefly Adult Pictures

Collection details
Location: Namekagon River, Wisconsin
Date: March 18th, 2004
Added to site: January 25th, 2006
Author: Troutnut
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