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.

We were lucky to be able to fish through this storm as it skirted around us to the north, giving us just enough clouds to prompt a BWO hatch but keeping the lighting at a safe distance.

From Slough Creek in Wyoming

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)

Doroneuria baumanni (Golden Stone) Stonefly Nymph Doroneuria baumanni (Golden Stone) Stonefly Nymph

Dorsal view of a Doroneuria baumanni (Perlidae) (Golden Stone) Stonefly Nymph from Sears Creek 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.

Isonichya Bicolor, Page 2

This topic is about the Mayfly Family Isonychiidae

See Isonychia for details. It is the only North American genus in this family.

Example specimens

11
Female Isonychia (Slate Drake) Mayfly Spinner

Artistic view of a Female Isonychia (Isonychiidae) (Slate Drake) Mayfly Spinner from the Teal River in Wisconsin

13
Female Isonychia bicolor (Mahogany Dun) Mayfly Dun

Lateral view of a Female Isonychia bicolor (Isonychiidae) (Mahogany Dun) Mayfly Dun from the Namekagon River in Wisconsin

10
Female Isonychia bicolor (Mahogany Dun) Mayfly Spinner

Lateral view of a Female Isonychia bicolor (Isonychiidae) (Mahogany Dun) Mayfly Spinner from the West Branch of Owego Creek in New York

I collected this female together with a male.

Oldredbarn

Novi, MI

Posts: 2600

Oldredbarn on Mar 29, 2012March 29th, 2012, 6:22 am EDT

When these threads morph (as they often seem to do), it would be nice if the topic originators would perhaps modify the titles to recognize this... Craig? But even this won't de-link it from the improper taxon. This, and avoiding multiple ID requests in the same thread would be a big help. Unfortunately this happens a lot. There's a lot of great commentary by the bug guys on this forum buried in unrelated topics.

Good luck with this Kurt...;)

"Even when my best efforts fail it's a satisfying challenge, and that, after all, is the essence of fly fishing." -Chauncy Lively

"Envy not the man who lives beside the river, but the man the river flows through." Joseph T Heywood

Entoman

Northern CA & ID

Posts: 2604

Entoman on Mar 29, 2012March 29th, 2012, 12:43 pm EDT

I must admit that nothing I have access to (other than Schwiebert) goes into infuscation or body coloration in a way that's much help. I just threw neglectus on the table based on size (8mm range vs. 12-16mm for distinctus) and the eyes (small black vs. larger & olive for distinctus). Both characters are tough to work with if they're close as there's no way to verify the accuracy of the measurement and eye color is often impacted by photographic lighting conditions and artifact.

At first I was thinking this was a female distinctus (because of the little black eyes) before Roger mentioned the size. Didn't notice the claspers neatly tucked against the terminal seg! Nobody mentioned my gender confusion, but I edited it anyway.:)

"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman