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)

Tricorythodes (Trico) Mayfly Nymph Tricorythodes (Trico) Mayfly Nymph

Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph 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.

Help With Identification

Redadman has attached this picture to aid in identification. The message is below.

Redadman
NEW YORK

Posts: 2

Redadman on Apr 23, 2020April 23rd, 2020, 10:24 pm EDT

This mayfly was observed in the Croton system yesterday. A size 14 maybe. My best guess is drunella cornuta based on photos from this site, but I'm stumped.

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Apr 24, 2020April 24th, 2020, 12:28 am EDT

Hi Larry-

Welcome aboard. I believe this female subimago to be of genus Leptophlebia. If you lighten the image, the characteristic abdominal banding becomes more apparent.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Redadman
NEW YORK

Posts: 2

Redadman on Apr 24, 2020April 24th, 2020, 8:49 am EDT

Thanks for the quick response. Someone else thought it might be a hendrickson. I've fished this stream for years and never seen this exact coloration.

Martinlf

Moderator
Palmyra PA

Posts: 3047

Martinlf on May 1, 2020May 1st, 2020, 1:20 pm EDT

A little early for drunella? The legs don't look right for drunella, either, I think. And I think the black quill typically has a very short middle tail. Could it be a hennie? What size was it? Oh and pretty photo, by the way. More to consider https://www.inaturalist.org/guide_taxa/35362

"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell