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.

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.

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Female Penelomax septentrionalis Mayfly Dun Pictures

I'm confident this dun belongs to septentrionalis, because her legs are just too long for any other Ephemerellid, and her unusual mid-dorsal stripe matches those of two easily identified nymphs I collected some miles downstream.

This really pretty mayfly was in kind of bad shape when I found it crippled on the surface, and bouncing around in my container with a bunch of green drakes didn't help.

Ruler view of a Female Penelomax septentrionalis (Ephemerellidae) Mayfly Dun from the West Branch of the Delaware River in New York The smallest ruler marks are 1 mm.

Lateral view of a Female Penelomax septentrionalis (Ephemerellidae) Mayfly Dun from the West Branch of the Delaware River in New York

Female Penelomax septentrionalis (Ephemerellidae) Mayfly Dun from the West Branch of the Delaware River in New York

Dorsal view of a Female Penelomax septentrionalis (Ephemerellidae) Mayfly Dun from the West Branch of the Delaware River in New York

Ventral view of a Female Penelomax septentrionalis (Ephemerellidae) Mayfly Dun from the West Branch of the Delaware River in New York

This mayfly was collected from the West Branch of the Delaware River in New York on June 1st, 2007 and added to Troutnut.com by Troutnut on June 4th, 2007.

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