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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.

Dorsal view of a Sweltsa (Chloroperlidae) (Sallfly) Stonefly Nymph from the Yakima River in Washington
This species was fairly abundant in a February sample of the upper Yakima.
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 Rhithrogena robusta Mayfly Spinner Pictures

Male Rhithrogena robusta (Heptageniidae) Mayfly Spinner from the Touchet River in Washington
Ventral view of a Male Rhithrogena robusta (Heptageniidae) Mayfly Spinner from the Touchet River in Washington

This mayfly was collected from the Touchet River in Washington on July 15th, 2011 and added to Troutnut.com by Bnewell on July 15th, 2011.

Discussions of this Spinner

Rhithrogena robusta habitat.
Posted by Bnewell on Jul 15, 2011
Last reply on Jul 15, 2011 by Bnewell
East Branch of the North Fork of the Touchet River, habitat for Rhithrogena robusta collected as spinners on July 15, 2011.

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Male Rhithrogena robusta Mayfly Spinner Pictures

Collection details
Location: Touchet River, Washington
Date: July 15th, 2011
Added to site: July 15th, 2011
Author: Bnewell
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