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.

Stream photos

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Female Hydropsyche (Spotted Sedge) Caddisfly Adult Female Hydropsyche (Spotted Sedge) Caddisfly Adult

Lateral view of a Female Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Adult from the Columbia River 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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Caddisfly Genus Goera (Little Gray Sedges)

Where & when

In 99 records from GBIF, adults of this genus have mostly been collected during June (40%), May (29%), July (22%), and August (5%).

In 56 records from GBIF, this genus has been collected at elevations ranging from 3 to 5167 ft, with an average (median) of 1749 ft.

Genus Range

source

Map of specific collection sites

Hatching behavior

Larva & pupa biology

Diet: Algae and detritus

Current speed: Fast

Substrate: Rocky

Environmental tolerance: Prefers cold streams

Shelter type: Strong stone case with unusually large stones for added stability in the fast water

Start a Discussion of Goera

References

LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.