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Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
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.
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Caddisfly Family Lepidostomatidae (Little Brown Sedges)

See Lepidostoma for details. It's the only important genus in this family.

The other one, Theliopsyche, is an uncommon Eastern small stream genus.

Where & when

In 563 records from GBIF, adults of this family have mostly been collected during July (26%), August (23%), June (23%), May (11%), and September (9%).

In 214 records from GBIF, this family has been collected at elevations ranging from 7 to 19701 ft, with an average (median) of 4304 ft.

Family Range

Specimens of the Caddisfly Family Lepidostomatidae

3 Male Adults
2 Female Adults
5 Larvae

Start a Discussion of Lepidostomatidae


Caddisfly Family Lepidostomatidae (Little Brown Sedges)

Genus in Lepidostomatidae: Lepidostoma, Theliopsyche
Family Range
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