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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.

Mystery Creek # 237 in Montana

Stream photos

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Clostoeca disjuncta (Northern Caddisfly) Caddisfly LarvaClostoeca disjuncta (Northern Caddisfly) Caddisfly Larva
Lateral view of a Clostoeca disjuncta (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington
This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
11 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.

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  3. Site updates from August 24, 2004

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  3. Site updates from August 24, 2004

Photos by Troutnut from the Beaverkill River and the West Branch of the Delaware River in New York

This 15" brown trout took a small emergent sparkle pupa on a large Catskill river.
Here's an underwater post-release picture of a 15" brown trout I caught in a clear Catskill river.
This is one of the most famous trout streams in the country. From the West Branch of the Delaware River in New York
The Beaverkill River in New York
Here's the most famous pool in the world. I was shocked that the fishing was so good--I had expected such a legendary place to be overfished. While it certainly sees a lot of pressure, it's still possible to have the whole 300-yard pool to yourself once in a while, and in the fall it doesn't get anywhere close to the combat fishing it sees during the major hatch seasons. It supports a terrific population of the most picky free-rising trout I've ever seen. From the Beaverkill River in New York
The Beaverkill River in New York
The West Branch of the Delaware River in New York
A beautiful deep current tongue runs along a manmade wall on a famous Catskill river. From the Beaverkill River in New York
The Beaverkill River in New York
The Beaverkill River in New York
The Beaverkill River in New York

On-stream insect photos by Troutnut from the Beaverkill River in New York

Here are the empty nymphal cases of Isonychia bicolor mayflies which hatched in early fall in the Catskills by crawling out onto a rock. From the Beaverkill River in New York

Closeup insects by Troutnut from the Beaverkill River and Miscellaneous New York in New York

Female Isonychia bicolor (Mahogany Dun) Mayfly Dun
2 Pictures
Ruler view of a Female Isonychia bicolor (Isonychiidae) (Mahogany Dun) Mayfly Dun from the Beaverkill River in New York The smallest ruler marks are 1/16".
Added by Troutnut on January 25, 2006
Collected August 23, 2004 from the Beaverkill River in New York and added by Troutnut on January 25, 2006
Male Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun
2 Pictures
Ruler view of a Male Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Dun from unknown in New York The smallest ruler marks are 1/16".
Collected August 23, 2004 from unknown in New York
Added by Troutnut on January 25, 2006
Collected August 23, 2004 from unknown in New York and added by Troutnut on January 25, 2006

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