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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.

Male Epeorus frisoni Mayfly Dun Pictures

I collected this male dun together with a female spinner, a female dun, and another male dun. I photographed this bedraggled one, larger than the other male, to show some of the greatest size variation within the species.

This mayfly was collected from Mystery Creek #23 in New York on September 6th, 2006 and added to Troutnut.com by Troutnut on October 3rd, 2006.

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