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.

Stream photos

Featured on the forum

Re: Trico emergers
In the Mayfly Genus Tricorythodes by Bwoklink (Martinlf replied)

Re: Trico Tips
In the Mayfly Genus Tricorythodes by Martinlf

Re: UV spectrum and trout
In General Discussion by Martinlf

Re: closing the gender gap in flyfishing
In General Discussion by Konchu (Smallflyguy replied)

Re: Fishing Kupa River, Slovenia
In Fishing Reports by Slocum (Fish1 replied)

Perlodidae (Springflies and Yellow Stones) Stonefly Nymph Perlodidae (Springflies and Yellow Stones) Stonefly Nymph

Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington

This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.

11 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.

Female Paragnetina (Golden Stone) Stonefly Adult Pictures

Artistic view of a Female Paragnetina (Perlidae) (Golden Stone) Stonefly Adult from Aquarium in New York

Lateral view of a Female Paragnetina (Perlidae) (Golden Stone) Stonefly Adult from Aquarium in New York

Dorsal view of a Female Paragnetina (Perlidae) (Golden Stone) Stonefly Adult from Aquarium in New York

Ventral view of a Female Paragnetina (Perlidae) (Golden Stone) Stonefly Adult from Aquarium in New York

Ruler view of a Female Paragnetina (Perlidae) (Golden Stone) Stonefly Adult from Aquarium in New York The smallest ruler marks are 1 mm.

Female Paragnetina (Perlidae) (Golden Stone) Stonefly Adult from Aquarium in New York

This stonefly was collected from Aquarium in New York on May 6th, 2007 and added to Troutnut.com by Troutnut on May 18th, 2007.

Discussions of this Adult

Paragnetina (female)

Posted by GONZO on Apr 8, 2009

Last reply on Apr 8, 2009 by GONZO

In earlier comments on specimen #756 (Paragnetina, male), I mentioned that I thought this might be the same genus. The appearance of the subgenital plate (in the 3rd photo) seems to confirm that suspicion.

Start a Discussion of Adult