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.

Turquoise view of Upper Titcomb Lake

From Titcomb Basin in Wyoming

Stream photos

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Isoperla (Stripetails and Yellow Stones) Stonefly Adult Isoperla (Stripetails and Yellow Stones) Stonefly Adult

Dorsal view of a Isoperla (Perlodidae) (Stripetails and Yellow Stones) Stonefly Adult from Mystery Creek #308 in Washington

9 Recently Added Photos

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.

Updates from June 2, 2005

Closeup insects by Troutnut from the Teal River and the Namekagon River in Wisconsin

Male Ephemerella invaria (Sulphur) Mayfly Spinner

14 Pictures

Lateral view of a Male Ephemerella invaria (Ephemerellidae) (Sulphur) Mayfly Spinner from the Teal River in Wisconsin

Collected June 2, 2005 from the Teal River in Wisconsin

Added by Troutnut on May 24, 2006

Collected June 2, 2005 from the Teal River in Wisconsin and added by Troutnut on May 24, 2006

Male Eurylophella minimella (Chocolate Dun) Mayfly Spinner

13 Pictures

Lateral view of a Male Eurylophella minimella (Ephemerellidae) (Chocolate Dun) Mayfly Spinner from the Namekagon River in Wisconsin

The genus ID on this specimen is confident but species is very tentative, based on the tentative ID of a seemingly-identical specimen from a nearby river a few days apart.

Collected June 2, 2005 from the Namekagon River in Wisconsin

Added by Troutnut on May 24, 2006

Collected June 2, 2005 from the Namekagon River in Wisconsin and added by Troutnut on May 24, 2006