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.

A small, old rock wing dam has created an excellent riffle and pool in this classic trout stream.

Stream photos

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Female Skwala (Large Springfly) Stonefly Adult Female Skwala (Large Springfly) Stonefly Adult

Lateral view of a Female Skwala (Perlodidae) (Large Springfly) Stonefly Adult from Mystery Creek #308 in Washington

9 Recently Added Photos

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.

Hellgrammite Genus Chauliodes (Fishflies)

Where & when

In 428 records from GBIF, adults of this genus have mostly been collected during June (14%), July (14%), August (14%), May (12%), September (11%), April (9%), March (7%), and February (6%).

In 56 records from GBIF, this genus has been collected at elevations ranging from 3 to 12631 ft, with an average (median) of 778 ft.

Specimens of the Hellgrammite Genus Chauliodes

1 Female Adult

Female Chauliodes rastricornis (Fishfly) Hellgrammite Adult

10 Pictures

Lateral view of a Female Chauliodes rastricornis (Corydalidae) (Fishfly) Hellgrammite Adult from Devil's Creek in Wisconsin

Collected June 13, 2021 from Devil's Creek in Wisconsin

Added by Troutnut on June 21, 2021

Collected June 13, 2021 from Devil's Creek in Wisconsin and added by Troutnut on June 21, 2021

Start a Discussion of Chauliodes

References

Brigham, W.U., A.K. Brigham, and A. Gnilke. 1982. Aquatic Insects and Oligochaetes of North and South Carolina. Midwest Aquatic Entomologist.
Stehr, Frederick W. 1998. Immature Insects. Kendall/Hunt Publishing Company.
Usinger, R.L. 1956. Aquatic Insects California, with keys to North American Genera and California species. University of California Press.