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 Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.
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.

Perlodidae (Springflies and Yellow Stones) Stonefly Nymph Pictures

This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.

Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
Dorsal view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
Lateral view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
Ventral view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington
Ruler view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington The smallest ruler marks are 1 mm.
Ventral view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington

This stonefly was collected from the Yakima River in Washington on May 27th, 2023 and added to Troutnut.com by Troutnut on June 10th, 2023.


Start a Discussion of Nymph

Perlodidae (Springflies and Yellow Stones) Stonefly Nymph Pictures

Collection details
Location: Yakima River, Washington
Date: May 27th, 2023
Added to site: June 10th, 2023
Author: Troutnut
Troutnut.com is copyright © 2004-2024 (email Jason). privacy policy