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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.

The Mystery Creek # 294 in Wyoming

Stream photos

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Sweltsa (Sallfly) Stonefly NymphSweltsa (Sallfly) Stonefly Nymph
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.
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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.
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  3. Ophiogomphus occidentis

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  3. Ophiogomphus occidentis

Millcreek has attached these 4 pictures to aid in identification. The message is below.
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Millcreek
Healdsburg, CA

Posts: 344
Millcreek on Sep 13, 2019September 13th, 2019, 9:49 am EDT
This naiad is found in areas of moderate current in the Russian River. Length is approximately 35-40 mm. The common name is Sinuous Snaketail.
"If we knew what it was we were doing, it would not be called research, would it?"
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Troutnut
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Bellevue, WA

Posts: 2758
Troutnut on Sep 14, 2019September 14th, 2019, 2:09 am EDT
Nice photos!
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist

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