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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.

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.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Caddisfly Species Rhyacophila carolina (Green Sedges)

Where & when

Time of year : May

In 73 records from GBIF, adults of this species have mostly been collected during June (29%), July (25%), May (19%), August (15%), and September (7%).

In 53 records from GBIF, this species has been collected at elevations ranging from 95 to 3873 ft, with an average (median) of 1921 ft.

Species Range

Hatching behavior

Time of day : Late afternoon and evening

Specimens of the Caddisfly Species Rhyacophila carolina

1 Larva

Start a Discussion of Rhyacophila carolina


  • LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.

Caddisfly Species Rhyacophila carolina (Green Sedges)

Species Range
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