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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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Caddisfly Genus Theliopsyche (Little Brown Sedges)

Where & when

Preferred waters: Small streams

This Eastern genus is very localized and is not known to produce fishable hatches.

In 11 records from GBIF, adults of this genus have been collected during May (55%), June (27%), and July (18%).

In 5 records from GBIF, this genus has been collected at elevations ranging from 1152 to 5764 ft, with an average (median) of 1752 ft.

Genus Range

Specimens of the Caddisfly Genus Theliopsyche

1 Female Adult

Start a Discussion of Theliopsyche

References

Caddisfly Genus Theliopsyche (Little Brown Sedges)

Taxonomy
6 species (Theliopsyche corona, Theliopsyche epilone, Theliopsyche griseus, Theliopsyche melas, Theliopsyche parva, and Theliopsyche tallapoosa) aren't included.
Genus Range
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