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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.

We were lucky to be able to fish through this storm as it skirted around us to the north, giving us just enough clouds to prompt a BWO hatch but keeping the lighting at a safe distance.

From Slough Creek in Wyoming

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Psychodidae True Fly Larva Psychodidae True Fly Larva

Lateral view of a Psychodidae True Fly Larva from Mystery Creek #308 in Washington

This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.

8 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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Site updates from March 29, 2006

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Site Update Comments
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Site updates from March 29, 2006

Underwater photos by Troutnut from Salmon Creek in New York

Here's one of my first test underwater pictures with the Pentax Optio WPi. It's a very shallow riffle in a clear trout stream.

From Salmon Creek in New York

This flash photo freezes the turbulent underside of a shallow riffle in a clear trout stream.

From Salmon Creek in New York

Closeup insects by Troutnut from Salmon Creek and Fall Creek in New York

12
Nigronia serricornis (Fishfly) Hellgrammite Larva

A fishfly larva. This fishfly (genus Nigonia) is closely related in appearance to Hellgrammites

Artistic view of a Nigronia serricornis (Corydalidae) (Fishfly) Hellgrammite Larva from Salmon Creek in New York

5
Stenonema (March Browns and Cahills) Mayfly Nymph

Dorsal view of a Stenonema (Heptageniidae) (March Browns and Cahills) Mayfly Nymph from Salmon Creek in New York

4
Ephemerella subvaria (Hendrickson) Mayfly Nymph

Dorsal view of a Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Nymph from Salmon Creek in New York

I've never seen this strange coloration on any Ephemerella subvaria nymph in a book before, but it's similar to several other specimens I collected on the same outing, including a smaller one that I photographed. They were outnumbered by the "normal" Ephemerella subvaria nymphs in the sample.

7
Amphipoda (Scud) Arthropod Adult

A freshwater amphipod (scud). Tiny crustacean common to many freshwater environments

Dorsal view of a Amphipoda (Scud) Arthropod Adult from Salmon Creek in New York

5
Agnetina capitata (Golden Stone) Stonefly Nymph

Dorsal view of a Agnetina capitata (Perlidae) (Golden Stone) Stonefly Nymph from Salmon Creek in New York

5
Psephenus (Water Penny) Beetle Larva

Here's a "water penny" (a Psephenidae beetle larva) crawling around on a real penny.

Artistic view of a Psephenus (Psephenidae) (Water Penny) Beetle Larva from Fall Creek in New York

8
Leptophlebia cupida (Black Quill) Mayfly Nymph

Dorsal view of a Leptophlebia cupida (Leptophlebiidae) (Black Quill) Mayfly Nymph from Fall Creek in New York

6
Capniidae (Snowfly) Stonefly Adult

Dorsal view of a Capniidae (Snowfly) Stonefly Adult from Salmon Creek in New York

7
Taeniopterygidae (Willowfly) Stonefly Adult

Dorsal view of a Taeniopterygidae (Willowfly) Stonefly Adult from Salmon Creek in New York

3
Chironomidae (Midge) True Fly Larva

Lateral view of a Chironomidae (Midge) True Fly Larva from Salmon Creek in New York

9
Ameletus ludens (Brown Dun) Mayfly Nymph

Dorsal view of a Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Salmon Creek in New York

6
Prostoia (Tiny Winter Black) Stonefly Nymph

Dorsal view of a Prostoia (Nemouridae) (Tiny Winter Black) Stonefly Nymph from Salmon Creek in New York

7
Acroneuria abnormis (Golden Stone) Stonefly Nymph

Perlidae stonefly nymph. A large predator of clean freshwater streams

Acroneuria abnormis (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York

9
Pedicia albivitta (Giant Eastern Crane Fly) True Fly Larva

Dorsal view of a Pedicia albivitta (Pediciidae) (Giant Eastern Crane Fly) True Fly Larva from Fall Creek in New York

7
Calopteryx Damselfly Nymph

Dorsal view of a Calopteryx (Calopterygidae) Damselfly Nymph from Fall Creek in New York

3
Chironomidae (Midge) True Fly Adult

Dorsal view of a Chironomidae (Midge) True Fly Adult from Salmon Creek in New York

5
Hexatoma True Fly Larva

Dorsal view of a Hexatoma (Limoniidae) True Fly Larva from Salmon Creek in New York

3
Capniidae (Snowfly) Stonefly Adult

Lateral view of a Capniidae (Snowfly) Stonefly Adult from Salmon Creek in New York

This drowned Capniidae adult showed up in my drift net sample while I was looking for nymphs. I took photos of the drowned adult in water like a nymph.

2
Ephemerella subvaria (Hendrickson) Mayfly Nymph

Dorsal view of a Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Nymph from Salmon Creek in New York

I've never seen this strange coloration on any Ephemerella subvaria nymph in a book before, but it's similar to several other specimens I collected on the same outing, including a larger one that I photographed. They were outnumbered by the "normal" Ephemerella subvaria nymphs in the sample.

4
Ephemera varia (Yellow Drake) Mayfly Nymph

A burrowing mayfly nymph. The juvenile stage of the brown drake, Ephemera simulans

Dorsal view of a Ephemera varia (Ephemeridae) (Yellow Drake) Mayfly Nymph from Fall Creek in New York

6
Neoleptophlebia Mayfly Nymph

Dorsal view of a Neoleptophlebia (Leptophlebiidae) Mayfly Nymph from Salmon Creek in New York

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