Header image
Enter a name
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.

Acerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly Nymph Pictures

This is a very rare mayfly in western Montana. The shape of the last gill is a key to its identification. I have collected this species in only one location.

This mayfly was collected from the Upper Stillwater River in Montana on May 5th, 2007 and added to Troutnut.com by Bnewell on June 26th, 2011.


Start a Discussion of Nymph

Acerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly Nymph Pictures

Collection details
Location: Upper Stillwater River, Montana
Date: May 5th, 2007
Added to site: June 26th, 2011
Author: Bnewell
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy