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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

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.

Cherylkorca has attached these 11 pictures to aid in identification. The message is below.
Cherylkorca's profile picture
Posts: 4
Cherylkorca on Feb 18, 2020February 18th, 2020, 4:50 pm EST
This last week I collected this larvae like Nymph and I am bit confused because i can not find anything close to this shape of bug ??? here are few images of it and thank you for your help, This guys was found in slower water under rock.
Wbranch's profile picture
York & Starlight PA

Posts: 2635
Wbranch on Feb 19, 2020February 19th, 2020, 12:13 am EST
Is there any reason you posted three images of one picture and seven images of the other picture? I guess you wanted to make sure we saw it.
Catskill fly fisher for fifty-five years.
Healdsburg, CA

Posts: 344
Millcreek on Feb 19, 2020February 19th, 2020, 12:54 am EST
I think it might be a caddis, probably a member of the Hydropsychidae family. You can see what appear to be gills under the body and the filaments on the end of the body.

"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein
Grants Pass, OR

Posts: 302
Creno on Feb 19, 2020February 19th, 2020, 4:33 am EST
You are correct that it is a hydropsychid. And I would go with one of the Hydropsyche species.
Posts: 16
Leskorcala on Feb 20, 2020February 20th, 2020, 2:11 pm EST
Thank you both for your help , I did collect few more today and they were in their tubular like gravel?sand cases , so its Caddis larvae for sure
Posts: 16
Leskorcala on Feb 20, 2020February 20th, 2020, 2:16 pm EST
No , no reason sir , just mistake on my part , compute was not loading and when did it load all

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