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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.

Dorsal view of a Glossosoma (Glossosomatidae) (Little Brown Short-horned Sedge) Caddisfly Larva from the Yakima River in Washington
I caught this tiny larva without a case, but it seems to key pretty clearly to to Glossosomatidae. From there, the lack of sclerites on the mesonotum points to either Glossosoma or Anagapetus. Although it's difficult to see in a 2D image from the microscope, it's pretty clear in the live 3D view that the pronotum is only excised about 1/3 of its length to accommodate the forecoxa, not 2/3, which points to Glossosoma at Couplet 5 of the Key to Genera of Glossosomatidae Larvae.
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.

Serotonin has attached these 3 pictures to aid in identification. The message is below.
Serotonin
Posts: 6
Serotonin on Feb 22, 2007February 22nd, 2007, 7:51 am EST
Serotonin posted these pics without a message, so I'm posting a quote from another thread in which I believe he references these pics --Troutnut

Serotonin wrote:
First, I'd like to say that I've really enjoyed this site since its inception, and I like it even more w/the new format. There is an incredible wealth of knowledge here.

I have encountered the bug pictured above, in a New York stream. I don't recall it's Latin name, but if memory serves, in Schwiebert's "Nymphs" he refers to it as a Snipe Fly Larva. I have also heard it called a Water Sprite.

I don't have the Nymphs book in front of me, but here's some photos I took a few winters ago. When disturbed, the things would thrash wildly until able to gain a foothold on something. I am considering making highly articulated larvae to mimic this behavior. Appx 1.5 cm.
Troutnut
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Bellevue, WA

Posts: 2758
Troutnut on Feb 22, 2007February 22nd, 2007, 8:29 am EST
That's a snipe fly larva, family Athericidae. Nice pictures!
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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