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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.

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Caddisfly Species Nectopsyche diarina (White Miller)

Where & when

Time of year : Midsummer

This is an important species.
Species Range

Larva & pupa biology

Current speed: Fast

Substrate: Rocks

Environmental tolerance: Prefers clear water

The preference of this species for fast, rocky habitat is unusual for the family Leptoceridae.

Start a Discussion of Nectopsyche diarina


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

Caddisfly Species Nectopsyche diarina (White Miller)

Species Range
Common Name
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