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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 Ephemerellidae (Hendricksons, Sulphurs, PMDs, BWOs) Mayfly Spinner Pictures

This mayfly was collected from Mystery Creek #237 in Montana on August 1st, 2020 and added to Troutnut.com by Troutnut on August 18th, 2020.

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