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Lateral view of a Male Baetis (Baetidae) (Blue-Winged Olive) Mayfly Dun from Mystery Creek #43 in New York
Blue-winged Olives
Baetis

Tiny Baetis mayflies are perhaps the most commonly encountered and imitated by anglers on all American trout streams due to their great abundance, widespread distribution, and trout-friendly emergence habits.

Lateral view of a Psychodidae True Fly Larva from Mystery Creek #308 in Washington
This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.
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 Ephemerella subvaria (Hendrickson) Mayfly Spinner Pictures

This female Hendrickson spinner is in kind of bad shape, but at least now I've got some good closeup photos of one. I collected her and a male Hendrickson as duns from the same hatch, and both molted into spinners in my house within a couple of days.

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

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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Female 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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