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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 Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Nymph from the Yakima River in Washington
Nymphs of this species were fairly common in late-winter kick net samples from the upper Yakima River. Although I could not find a key to species of Zapada nymphs, a revision of the Nemouridae family by Baumann (1975) includes the following helpful sentence: "2 cervical gills on each side of midline, 1 arising inside and 1 outside of lateral cervical sclerites, usually single and elongate, sometimes constricted but with 3 or 4 branches arising beyond gill base in Zapada cinctipes." This specimen clearly has the branches and is within the range of that species.
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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Lepidoptera (Moth) Insect Adult Pictures

I have been told this is the only western aquatic moth, Petrophila confusalis, see here on milkweed blossoms.

This insect was collected from the Flathead River-lower in Montana on July 21st, 2005 and added to Troutnut.com by Bnewell on June 28th, 2011.


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Lepidoptera (Moth) Insect Adult Pictures

Collection details
Location: Flathead River-lower, Montana
Date: July 21st, 2005
Added to site: June 28th, 2011
Author: Bnewell
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