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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 Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).
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.

Female Stenacron (Light Cahill) Mayfly Spinner Pictures

Ruler view of a Female Stenacron (Heptageniidae) (Light Cahill) Mayfly Spinner from the East Branch of the Delaware River in New York The smallest ruler marks are 1/16".
Lateral view of a Female Stenacron (Heptageniidae) (Light Cahill) Mayfly Spinner from the East Branch of the Delaware River in New York
Artistic view of a Female Stenacron (Heptageniidae) (Light Cahill) Mayfly Spinner from the East Branch of the Delaware River in New York
Ventral view of a Female Stenacron (Heptageniidae) (Light Cahill) Mayfly Spinner from the East Branch of the Delaware River in New York

This mayfly was collected from the East Branch of the Delaware River in New York on July 13th, 2005 and added to Troutnut.com by Troutnut on April 14th, 2006.


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Female Stenacron (Light Cahill) Mayfly Spinner Pictures

Collection details
Location: East Branch of the Delaware River, New York
Date: July 13th, 2005
Added to site: April 14th, 2006
Author: Troutnut
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