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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.

A beautiful braided reach of the Sag River, with the Philip Smith Mountains in the Arctic National Wildlife Refuge (ANWR) in the background.

From the Sagavanirktok River in Alaska

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Perlodidae (Springflies and Yellow Stones) Stonefly Nymph Perlodidae (Springflies and Yellow Stones) Stonefly Nymph

Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington

This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.

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.

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Updates from March 28, 2006

Updates from March 28, 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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