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)

Limnephilidae (Giant Sedges) Caddisfly Larva Limnephilidae (Giant Sedges) Caddisfly Larva

Dorsal view of a Limnephilidae (Giant Sedges) Caddisfly Larva from the Yakima River in Washington

This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.

10 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.

Midge

Rheotanytarsus Midge Larva

6 Pictures

Here's what lived inside.

Dorsal view of a Rheotanytarsus (Chironomidae) Midge Larva from Cayuta Creek in New York

This peculiar midge lived in a case tightly fixed to a rock, with several others of its kind. The case seems to be made of tiny grains of sand. I'm not sure what the function is for the little lines sticking out the front, because they aren't legs.

Collected April 13, 2007 from Cayuta Creek in New York

Added by Troutnut on April 22, 2007

Collected April 13, 2007 from Cayuta Creek in New York and added by Troutnut on April 22, 2007

DMM
Posts: 34

DMM on Apr 22, 2007April 22nd, 2007, 5:56 pm EDT

I believe this is Rheotanytarsus

David

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Apr 22, 2007April 22nd, 2007, 8:03 pm EDT

I believe this is Rheotanytarsus

David-

I know very little about Chironomids, but am interested in learning. So, I went to Merritt & Cummins to see if I could follow how you made this identification. The last larval couplet for Rheotanytarsus reads as follows:

15’. Distal portion of 2nd antennal segment only moderately expanded (Fig. 26.121);
………mentum not strongly arched (Fig. 26.102) …………… Rheotanytarsus Bause

Fig. 26.121 appears below, and is titled Second antennal segment of Rheotanytarsus sp.

Jason’s picture_2885_full cropped to show only the head and darkened a bit appears below:

Unless I am seriously missing something, which certainly wouldn’t be unprecedented, Rheotanytarsus antennae appear to be branched following the 2nd segment, and I don’t see that character in Jason’s picture. Please advise.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Taxon

Site Editor
Plano, TX

Posts: 1311

Taxon on Apr 23, 2007April 23rd, 2007, 9:38 am EDT

Really great information, David. There are some of us on here who really appreciate the details, so please don't be reluctant to volunteer them.

Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com

Troutnut