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.

I caught several wild and colorful 8-9 inch brook trout in the clear little pool below this waterfall.

From Mystery Creek # 89 in New York

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)

Limnephilus (Summer Flier Sedge) Caddisfly Larva Limnephilus (Summer Flier Sedge) Caddisfly Larva

Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington

This seems to be a young larva of Limnephilus. Although not clear in the picture, several ventral abdominal segments have chloride epithelia.

7 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.

Lepidostoma (Little Brown Sedge) Caddisfly Larva Pictures

Ruler view of a Lepidostoma (Lepidostomatidae) (Little Brown Sedge) Caddisfly Larva from Mystery Creek #199 in Washington The smallest ruler marks are 1 mm.

Case view of a Lepidostoma (Lepidostomatidae) (Little Brown Sedge) Caddisfly Larva from Mystery Creek #199 in Washington

Lepidostoma (Lepidostomatidae) (Little Brown Sedge) Caddisfly Larva from Mystery Creek #199 in Washington

Lateral view of a Lepidostoma (Lepidostomatidae) (Little Brown Sedge) Caddisfly Larva from Mystery Creek #199 in Washington

Dorsal view of a Lepidostoma (Lepidostomatidae) (Little Brown Sedge) Caddisfly Larva from Mystery Creek #199 in Washington

Ventral view of a Lepidostoma (Lepidostomatidae) (Little Brown Sedge) Caddisfly Larva from Mystery Creek #199 in Washington

This caddisfly was collected from Mystery Creek #199 in Washington on July 28th, 2019 and added to Troutnut.com by Troutnut on July 30th, 2019.

Discussions of this Larva

Don't think it is Gumaga........

1 replies

Posted by Creno on Aug 5, 2019

Last reply on Aug 6, 2019 by Troutnut

Just getting back to the PC and a good look at your above pics. I don't think this is Gumaga. From what I can see it lacks the divided mesonotum and the metanotal sclerites are the wrong shape/size for Gumaga. The fact that you couldn't see the antennae makes me think they are right next to the eye. The rest of the characters also suggest this is one of the Lepidostoma and the case suggests pluviale group, which are very common in that part of the world.

Interesting caddisfly for Roger/Taxon

Posted by Troutnut on Jul 30, 2019

Last reply on Jul 30, 2019 by Troutnut

I ran across [this thread on Roger's site](http://www.flyfishingentomology.com/forum/Replies_Display.php?t=0134) discussing with Kurt the identity of a larva fairly similar to this one. I keyed this one out to Sericostomatidae with the dissecting microscope (although I couldn't really make out the antennae at all), and from there it easily keys to Gumaga. I was uncertain in enough places that I was pleased to get to the end of the key and find cases that perfectly match this specimen.

Start a Discussion of Larva