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.

A beautiful braided reach of the Sag River, with the Philip Smith Mountains in the Arctic National Wildlife Refuge (ANWR) in the background.

From the Sagavanirktok River in Alaska

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.

Anyone know what this is?

Female Heptageniidae (March Browns, Cahills, Quill Gordons) Mayfly Dun

11 Pictures

This specimen is really strange, very different in form from any other mayfly I've seen. Unfortunately it was found alone crippled in an eddy and in pretty bad shape, and I couldn't find any others like it.

Collected June 27, 2005 from the Long Lake Branch of the White River in Wisconsin

Added by Troutnut on May 26, 2006

Collected June 27, 2005 from the Long Lake Branch of the White River in Wisconsin and added by Troutnut on May 26, 2006

Troutnut

Administrator
Bellevue, WA

Posts: 2758

Troutnut on Jun 25, 2006June 25th, 2006, 4:12 pm EDT

I don't recognize this fly at all, and the major features are too damaged for me to follow my key to families. I'm guessing maybe it's some large and obscure species of Heptageniid, but it could be from some rare family of mayflies too.

Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

SalmonfliesPteronarcys californica

Troutnut Forum › Specimen Discussion › Anyone know what this is?