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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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Stonefly Genus Kogotus

Where & when

In 7 records from GBIF, adults of this genus have been collected during August (57%) and July (43%).

In 4 records from GBIF, this genus has been collected at elevations of 8999, 9511, 9544, and 9606 ft.

Genus Range

Specimens of the Stonefly Genus Kogotus

1 Female Adult
3 Nymphs

Start a Discussion of Kogotus

Stonefly Genus Kogotus

Species in Kogotus: Kogotus nonus
1 species (Kogotus modestus) isn't included.
Genus Range
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