Header image
Enter a name
Artistic view of a Male Pteronarcys californica (Pteronarcyidae) (Giant Salmonfly) Stonefly Adult from the Gallatin River in Montana
Pteronarcys californica

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

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.

Stonefly Genus Prostoia (Tiny Winter Blacks)

Where & when

In 86 records from GBIF, adults of this genus have been collected during April (35%), March (30%), May (20%), February (9%), and June (6%).

In 11 records from GBIF, this genus has been collected at elevations ranging from 20 to 10007 ft, with an average (median) of 499 ft.

Genus Range

Specimens of the Stonefly Genus Prostoia

1 Nymph

Start a Discussion of Prostoia

Stonefly Genus Prostoia (Tiny Winter Blacks)

Species in Prostoia: Prostoia completa
3 species (Prostoia besametsa, Prostoia hallasi, and Prostoia similis) aren't included.
Genus Range
Common Name
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy