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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.

Dorsal view of a Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Nymph from the Yakima River in Washington
Nymphs of this species were fairly common in late-winter kick net samples from the upper Yakima River. Although I could not find a key to species of Zapada nymphs, a revision of the Nemouridae family by Baumann (1975) includes the following helpful sentence: "2 cervical gills on each side of midline, 1 arising inside and 1 outside of lateral cervical sclerites, usually single and elongate, sometimes constricted but with 3 or 4 branches arising beyond gill base in Zapada cinctipes." This specimen clearly has the branches and is within the range of that species.
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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Caddisfly Species Brachycentrus nigrosoma (Grannoms)

This is a smaller, darker cousin of Brachycentrus numerosus.

Where & when

In 8 records from GBIF, adults of this species have been collected during April (63%), March (25%), and June (13%).

In 1 record from GBIF, this species has been collected at elevation of 1106 ft.

Species Range

Start a Discussion of Brachycentrus nigrosoma

References

Caddisfly Species Brachycentrus nigrosoma (Grannoms)

Taxonomy
Species Range
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