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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Clostoeca disjuncta (Northern Caddisfly) Caddisfly Larva Clostoeca 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.

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Updates from May 4, 2007

Closeup insects by Bnewell from the Upper Stillwater River in Montana

Acerpenna pygmaea (Tiny Blue-Winged Olive) Mayfly Nymph

3 Pictures

Acerpenna pygmaea (Baetidae) (Tiny Blue-Winged Olive) Mayfly Nymph from the Upper Stillwater River in Montana

This is a very rare mayfly in western Montana. The shape of the last gill is a key to its identification. I have collected this species in only one location.

Collected May 4, 2007 from the Upper Stillwater River in Montana

Added by Bnewell on June 26, 2011

Collected May 4, 2007 from the Upper Stillwater River in Montana and added by Bnewell on June 26, 2011