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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 Limnephilidae (Giant Sedges) Caddisfly Larva from the Yakima River in Washington
This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.
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.

Ephemerella aurivillii Mayfly Nymph Pictures

This nymph hatched out in my aquarium into this dun.

Ruler view of a Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska The smallest ruler marks are 1 mm.
Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska
Dorsal view of a Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska
Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska
Ventral view of a Ephemerella aurivillii (Ephemerellidae) Mayfly Nymph from Nome Creek in Alaska

This mayfly was collected from Nome Creek in Alaska on July 10th, 2011 and added to Troutnut.com by Troutnut on July 13th, 2011.


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Ephemerella aurivillii Mayfly Nymph Pictures

Collection details
Location: Nome Creek, Alaska
Date: July 10th, 2011
Added to site: July 13th, 2011
Author: Troutnut
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