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.

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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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?Reliable Taxonomic keys to Species Level?

Fish4va
lansdale, PA

Posts: 1

Fish4va on Mar 31, 2008March 31st, 2008, 7:43 am EDT

I am looking for reliable keys, preferably published books or articles, that can be used to identify aquatic inverts to species level. I am currently using such sources as Pennak, Wiggins and Merritt & Cummins for both work and play. These sources are great at getting to genus level identification.

Does anyone have any suggestions?