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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 Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
This species was fairly abundant in a February sample of the upper Yakima.
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 3 pictures to aid in identification. The message is below.
Cherylkorca
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Posts: 4
Cherylkorca on Jan 6, 2020January 6th, 2020, 2:10 pm EST
I live in Montana and right now we have decent hatch of what i call them yellow butt midges. Adult has folded back whitish , clear wings with front abdomen towards the head black and black legs and rear abdomen bright yellow. They hatch in slow water. Would love to know if anyone here would now the name of this midge. I would say its size 20-22
Thank you very much for your help,
Cheryl
Taxon
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Site Editor
Plano, TX

Posts: 1311
Taxon on Jan 6, 2020January 6th, 2020, 9:26 pm EST
Hi Cheryl-

Based in what can be seen of the wing venation, I believe the adult images to be of Family Chironomidae, Subfamily Chironominae, and Tribe Chironomini.

However, if you desire an expert opinion, which mine as certainly not, I would recommend that you contact Ethan Bright at University Of Michigan, whose email address I can PM to you upon your request.
Best regards,
Roger Rohrbeck
www.FlyfishingEntomology.com
Cherylkorca
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Posts: 4
Cherylkorca on Feb 18, 2020February 18th, 2020, 4:07 pm EST
Thank you Rodger

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