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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 Pycnopsyche guttifera (Limnephilidae) (Great Autumn Brown Sedge) Caddisfly Larva from the Yakima River in Washington
This specimen appears to be of the same species as this one collected in the same spot two months earlier. The identification of both is tentative. This one suffered some physical damage before being photographed, too, so the colors aren't totally natural. I was mostly photographing it to test out some new camera setting idea, which worked really well for a couple of closeups.
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.

Male Ephemerella subvaria (Hendrickson) Mayfly Spinner Pictures

I collected this beautiful male Hendrickson specimen as a dun, along with a female Hendrickson from the same hatch. Both molted into spinners in my house within a couple of days.

An Ephemerella mayfly. This mayfly is an adult mayfly of the imago or "spinner" stage

Lateral view of a Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York
Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York
Ventral view of a Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York
Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York
This Hendrickson is just begging to catch a trout, isn't he?  Look at the effort he's putting into shaping his body like a hook.

Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York
Dorsal view of a Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York
Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York
This picture kind of leaves me with the impression that I should break out the weird size 13 hooks I have stashed away somewhere.

Ruler view of a Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York The smallest ruler marks are 1 mm.
Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York
Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York
Artistic view of a Male Ephemerella subvaria (Ephemerellidae) (Hendrickson) Mayfly Spinner from Fall Creek in New York

This mayfly was collected from Fall Creek in New York on April 23rd, 2007 and added to Troutnut.com by Troutnut on April 25th, 2007.


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Male Ephemerella subvaria (Hendrickson) Mayfly Spinner Pictures

Collection details
Location: Fall Creek, New York
Date: April 23rd, 2007
Added to site: April 25th, 2007
Author: Troutnut
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