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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.

Waterfalls over smooth bedrock above Titcomb Lakes

From Titcomb Basin in Wyoming

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Kogotus Stonefly Nymph Kogotus Stonefly Nymph

Dorsal view of a Kogotus (Perlodidae) Stonefly Nymph from Mystery Creek #199 in Washington

This one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.

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.

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Updates from March 31, 2007

Updates from March 31, 2007

Closeup insects by Troutnut from Mystery Creek #62 in New York

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Rhyacophila fuscula (Green Sedge) Caddisfly Larva

Dorsal view of a Rhyacophila fuscula (Rhyacophilidae) (Green Sedge) Caddisfly Larva from Mystery Creek #62 in New York

13
Pycnopsyche (Great Autumn Brown Sedge) Caddisfly Larva

Case view of a Pycnopsyche (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from Mystery Creek #62 in New York

7
Peltoperla (Roachfly) Stonefly Nymph

Peltoperla (Peltoperlidae) (Roachfly) Stonefly Nymph from Mystery Creek #62 in New York

I'm guessing this is an immature Peltoperla, because it lacks the well-developed setal fringe on the hind femora that would indicate Tallaperla, but it also lacks the dark spots that should indicate a mature Peltoperla nymph.

4
Ephemerella invaria (Sulphur) Mayfly Nymph

Dorsal view of a Ephemerella invaria (Ephemerellidae) (Sulphur) Mayfly Nymph from Mystery Creek #62 in New York

7
Ameletus ludens (Brown Dun) Mayfly Nymph

Dorsal view of a Ameletus ludens (Ameletidae) (Brown Dun) Mayfly Nymph from Mystery Creek #62 in New York

7
Taenionema atlanticum (Willowfly) Stonefly Nymph

Dorsal view of a Taenionema atlanticum (Taeniopterygidae) (Willowfly) Stonefly Nymph from Mystery Creek #62 in New York

4
Acari (Mite) Arthropod Adult

This is the only picture in the set in which the mite was alive. I had to kill it in alcohol for the others, because it was scurrying around too much to stay in focus at the high zoom level needed to show some detail on such a tiny critter.

Dorsal view of a Acari (Mite) Arthropod Adult from Mystery Creek #62 in New York

These tiny little aquatic mites show up in my samples from time to time. This fairly large one is only about 1mm long, so these aren't relevant to trout, but it's interesting to know that they're down there, anyway.

5
Baetis (Blue-Winged Olive) Mayfly Nymph

Dorsal view of a Baetis (Baetidae) (Blue-Winged Olive) Mayfly Nymph from Mystery Creek #62 in New York

3
Isonychia bicolor (Mahogany Dun) Mayfly Nymph

Dorsal view of a Isonychia bicolor (Isonychiidae) (Mahogany Dun) Mayfly Nymph from Mystery Creek #62 in New York

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