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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 Setvena wahkeena (Perlodidae) (Wahkeena Springfly) Stonefly Nymph from Mystery Creek #199 in Washington
As far as I can tell, this species has only previously been reported from one site in Oregon along the Columbia gorge. However, the key characteristics are fairly unmistakable in all except for one minor detail:
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
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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Little Black Sedges

Like most common names,"Little Black Sedge" can refer to more than one taxon. They're previewed below, along with 3 specimens. For more detail click through to the scientific names.

Caddisfly Genus Chimarra

These are often called Little Black Sedges.
Chimarra aterrima is the most important species.
Dorsal view of a Chimarra (Philopotamidae) (Little Black Sedge) Caddisfly Larva from unknown in Wisconsin

Caddisfly Genus Lepidostoma

These are very rarely called Little Black Sedges.
This genus is important for trout anglers. Many species of Lepidostoma produce excellent hatches, especially in the West. Lepidostoma can be very prolific in spring creek environments or smaller runoff streams with springs. Lepidostoma togatum is the most important species of this genus in the East and Midwest. The West has several species that are important.
Female Lepidostoma podagrum (Lepidostomatidae) (Little Brown Sedge) Caddisfly Adult from the Fall River in California
These specimens are still alive, just very cold, so the colors are accurate. I put them in the freezer for a bit to settle them down and overdid it a little:)
Lepidostoma podagrum (Lepidostomatidae) (Little Brown Sedge) Caddisfly Larva from the Fall River in California
The photo of the specimen cased is alive. The photo of the uncased larva is the same specimen taken after it was preserved in its case. Unfortunately, there was a lot of pigment transfer making the specimen look olivaceous. In life it was grayish white as shown in the first photo.

Little Black Sedges

Scientific Names
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