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.

Waterfalls over smooth bedrock above Titcomb Lakes

From Titcomb Basin in Wyoming

Stream photos

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Hydropsyche (Spotted Sedge) Caddisfly Larva Hydropsyche (Spotted Sedge) Caddisfly Larva

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington

With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.

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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.

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 Agraylea multipunctata (Salt and Pepper Microcaddisflies)

Where & when

Time of year : June and July

Preferred waters: Lakes, spring creeks

In 160 records from GBIF, adults of this species have mostly been collected during August (19%), July (19%), June (18%), May (16%), September (15%), and April (7%).

In 91 records from GBIF, this species has been collected at elevations ranging from 3 to 9009 ft, with an average (median) of 1312 ft.

Species Range

source

Map of specific collection sites

Hatching behavior

Time of day : Overnight or dawn

Gary LaFontaine reports in Caddisflies that the emergence of this species occurs overnight but there may be a fishable number of cripples left on the water at dawn.

Larva & pupa biology

Substrate: Vegetation

Start a Discussion of Agraylea multipunctata

References

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