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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Tricorythodes (Trico) Mayfly Nymph Tricorythodes (Trico) Mayfly Nymph

Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph from Mystery Creek #308 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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Stonefly Genus Leuctra (Needleflies)

Ernest Schwiebert notes in Matching the Hatch that trout are very fond of these uncommon stoneflies when they are available.

Where & when

In 26 records from GBIF, adults of this genus have been collected during June (42%), August (27%), May (19%), and July (12%).

In 8 records from GBIF, this genus has been collected at elevations ranging from 52 to 4203 ft, with an average (median) of 1394 ft.

Genus Range

source

Map of specific collection sites

Start a Discussion of Leuctra

References

Schwiebert, Ernest G. 1955. Matching the Hatch. MacMillan Publishing Company.