Salmonflies
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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This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.
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Caddisfly Species Rhyacophila coloradensis (Green Sedges)
Where & when
This species is important in the Northern inland Rocky Mountain states. It is reported to be the most abundant species of the genus in Wyoming.In 76 records from GBIF, adults of this species have mostly been collected during July (25%), June (22%), August (18%), April (11%), September (8%), and May (7%).
In 54 records from GBIF, this species has been collected at elevations ranging from 394 to 10587 ft, with an average (median) of 6959 ft.
Species Range
Egg-Laying behavior
Time of day: Afternoon
Larva & pupa biology
Current speed: Fast
Substrate: Rocky
Start a Discussion of Rhyacophila coloradensis
References
- LaFontaine, Gary. 1981. Caddisflies. The Lyons Press.
- Swisher, Doug and Carl Richards. 2000. Selective Trout. The Lyons Press.
Caddisfly Species Rhyacophila coloradensis (Green Sedges)
Species Range
Common Names
Resources
- NatureServe
- Integrated Taxonomic Information System
- Global Biodiversity Information Facility
- Described by Banks (1904)