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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.

Female Isonychia bicolor (Mahogany Dun) Mayfly Dun Pictures

This mayfly was collected from the Beaverkill River in New York on September 2nd, 2004 and added to Troutnut.com by Troutnut on January 25th, 2006.

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