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Pteronarcys californica

The giant Salmonflies of the Western mountains are legendary for their proclivity to elicit consistent dry-fly action and ferocious strikes.

Caddisfly Family Helicopsychidae

See Helicopsyche borealis for details. It is the only important species in the only American genus of this family.

Specimens of the Caddisfly Family Helicopsychidae

1 Adult
Helicopsyche borealis (Speckled Peter) Caddisfly Adult
This one keys pretty easily to the Helicopsychidae family, of which there is only one genus in North America, and one species reported in this general area.
1 Pupa
Helicopsyche borealis (Speckled Peter) Caddisfly Pupa
I'm calling this one very tentatively Helicopsyche borealis, with some big caveats that I might be wrong.

It seems to key fairly easily to Helicopsychidae, except at the last couplet in Merritt & Cummins (5th ed) it's supposed to have “anal processes short and straight, each with several mesal setae and 2 long apical setae,” whereas this one has VERY short, straight processes with 3 long apical setae and no mesal ones.

Additionally, the only species of Helicopsychidae documented in this region is Helicopsyche borealis, which is supposed to emerge much later in the summer.

1 Underwater Picture of Helicopsychidae Caddisflies:

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Genus in Helicopsychidae
HelicopsycheSpeckled Peters221
Family Range
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