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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 Stenonema terminatum Mayfly Dun Pictures

This mayfly was collected from the Flathead River-Lower in Montana on July 9th, 2005 and added to Troutnut.com by Bnewell on June 27th, 2011.

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