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.

The Clark's Fork of the Yellowstone River in Wyoming

Stream photos

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Limnephilus (Summer Flier Sedge) Caddisfly Larva Limnephilus (Summer Flier Sedge) Caddisfly Larva

Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington

This seems to be a young larva of Limnephilus. Although not clear in the picture, several ventral abdominal segments have chloride epithelia.

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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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Stonefly Species Kathroperla perdita (Sallflies)

This species is uncommonly collected except from wells. It is a hyporheic species living in the river gravels of river floodplains until it is ready to emerge.
The head shape is an important identifier.

Species Range

source

Specimens of the Stonefly Species Kathroperla perdita

1 Adult

Kathroperla perdita (Sallfly) Stonefly Adult

1 Picture

Kathroperla perdita (Chloroperlidae) (Sallfly) Stonefly Adult from Teepee Creek in Montana

Collected May 8, 2005 from Teepee Creek in Montana

Added by Bnewell on July 3, 2011

Collected May 8, 2005 from Teepee Creek in Montana and added by Bnewell on July 3, 2011

1 Nymph

Kathroperla perdita (Sallfly) Stonefly Nymph

1 Picture

Kathroperla perdita (Chloroperlidae) (Sallfly) Stonefly Nymph from the Flathead River-upper in Montana

Collected April 14, 2010 from the Flathead River-upper in Montana

Added by Bnewell on June 26, 2011

Collected April 14, 2010 from the Flathead River-upper in Montana and added by Bnewell on June 26, 2011

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