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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.

Cedar sweepers line the fertile spring creek headwaters of a famous trout stream. From the Bois Brule River in Wisconsin

Stream photos

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Tricorythodes (Trico) Mayfly NymphTricorythodes (Trico) Mayfly Nymph
Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph from Mystery Creek #308 in Washington
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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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Closeup insects by Bnewell from the Big Thompson River in Montana

Male Rhithrogena virilis Mayfly Spinner
2 Pictures
Male Rhithrogena virilis (Heptageniidae) Mayfly Spinner from the Big Thompson River in Montana
Before I reared this specimen the nymphs were unknown. See Western North American Naturalist for the paper on the description of this species' nymph.
Added by Bnewell on June 26, 2011
Collected April 3, 2007 from the Big Thompson River in Montana and added by Bnewell on June 26, 2011

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