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.

The Middle Fork of the Koyukuk River in Alaska

Stream photos

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Skwala (Large Springfly) Stonefly Nymph Skwala (Large Springfly) Stonefly Nymph

Dorsal view of a Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington

This Skwala nymph still has a couple months left to go before hatching, but it's still a good representative of its species, which was extremely abundant in my sample for a stonefly of this size. It's obvious why the Yakima is known for its Skwala hatch.

6 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.

Female Grammotaulius lorettae (Northern Caddisfly) Caddisfly Adult Pictures

Lateral view of a Female Grammotaulius lorettae (Limnephilidae) (Northern Caddisfly) Caddisfly Adult from the Henry's Fork of the Snake River in Idaho

Female Grammotaulius lorettae (Limnephilidae) (Northern Caddisfly) Caddisfly Adult from the Henry's Fork of the Snake River in Idaho

Case view of a Female Grammotaulius lorettae (Limnephilidae) (Northern Caddisfly) Caddisfly Adult from the Henry's Fork of the Snake River in Idaho

Each mark on the ruler is 1/16"

Ruler view of a Female Grammotaulius lorettae (Limnephilidae) (Northern Caddisfly) Caddisfly Adult from the Henry's Fork of the Snake River in Idaho The smallest ruler marks are 1/16".

This caddisfly was collected from the Henry's Fork of the Snake River in Idaho on August 11th, 2018 and added to Troutnut.com by Troutnut on June 12th, 2019.

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