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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.

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.
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Male Baetis (Blue-Winged Olive) Mayfly Spinner Pictures

Probably Baetis tricaudatus.

This mayfly was collected from the Touchet River in Washington on July 13th, 2011 and added to Troutnut.com by Bnewell on July 13th, 2011.


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Male Baetis (Blue-Winged Olive) Mayfly Spinner Pictures

Collection details
Location: Touchet River, Washington
Date: July 13th, 2011
Added to site: July 13th, 2011
Author: Bnewell
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