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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.

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.
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Skwala (Large Springfly) Stonefly Nymph Pictures

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.

Dorsal view of a Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington
Ventral view of a Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington
Ruler view of a Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington The smallest ruler marks are 1 mm.
Artistic view of a Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington
Skwala (Perlodidae) (Large Springfly) Stonefly Nymph from the Yakima River in Washington
Skwala (Perlodidae) (Large Springfly) 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.


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Skwala (Large Springfly) Stonefly Nymph Pictures

Collection details
Location: Yakima River, Washington
Date: February 18th, 2023
Added to site: February 21st, 2023
Author: Troutnut
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