Header image
Enter a name
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.

Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).
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.

Sweltsa (Sallfly) Stonefly Nymph Pictures

This species was fairly abundant in a February sample of the upper Yakima.

Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
Ventral view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
Ruler view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington The smallest ruler marks are 1 mm.
Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
Colors artificially enhanced to show the pattern of setae on the tails.

Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington

This stonefly was collected from the Yakima River in Washington on February 18th, 2023 and added to Troutnut.com by Troutnut on February 21st, 2023.


Start a Discussion of Nymph

References

Sweltsa (Sallfly) Stonefly Nymph Pictures

Collection details
Location: Yakima River, Washington
Date: February 18th, 2023
Added to site: February 21st, 2023
Author: Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy