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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.

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington
With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.
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.
Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Medium Grannoms

This common name refers to only one species. Click its scientific name to learn more.

Caddisfly Species Brachycentrus americanus

These are often called Medium Grannoms.
Female Brachycentrus americanus (Brachycentridae) (American Grannom) Caddisfly Adult from the Fall River in California
Size 11 mm. Prior to this photo the specimen dropped its large egg mass that was a very dark (almost black) olive sphere almost twice the diameter of the abdomen. Notice the abdomen visible through the wings is both thickened and shortened post egg drop.
Case view of a Brachycentrus americanus (Brachycentridae) (American Grannom) Caddisfly Larva from the Yakima River in Washington
This species of Brachycentrus was extremely common in mid-September kick net samples in the Yakima canyon.

Medium Grannoms

Scientific Name
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