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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 Male Baetidae (Blue-Winged Olive) Mayfly Dun from Mystery Creek #308 in Washington
This dun emerged from a mature nymph on my desk. Unfortunately its wings didn't perfectly dry out.
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 Epeorus pleuralis (Quill Gordon) Mayfly Spinner Pictures

A few days earlier I photographed this same specimen as a dun. The changes between dun and spinner seem particularly dramatic in this species.

Lateral view of a Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York
Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York
Ruler view of a Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York The smallest ruler marks are 1 mm.
Artistic view of a Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York
Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York
Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York
Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York
Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York
Ventral view of a Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York
Male Epeorus pleuralis (Heptageniidae) (Quill Gordon) Mayfly Spinner from Dresserville Creek in New York

This mayfly was collected from Dresserville Creek in New York on April 30th, 2007 and added to Troutnut.com by Troutnut on May 3rd, 2007.


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Male Epeorus pleuralis (Quill Gordon) Mayfly Spinner Pictures

Collection details
Location: Dresserville Creek, New York
Date: April 30th, 2007
Added to site: May 3rd, 2007
Author: Troutnut
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