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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.

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Male Baetidae (Blue-Winged Olive) Mayfly Dun Male Baetidae (Blue-Winged Olive) Mayfly Dun

Lateral view of a Male Baetidae (Blue-Winged Olive) Mayfly Dun from Mystery Creek #308 in Washington

This dun emerged from a mature nymph on my desk. Unfortunately its wings didn't perfectly dry out.

7 Recently Added Photos

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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Updates from May 29, 2005

Updates from May 29, 2005

Photos by Troutnut from the Namekagon River in Wisconsin

The trees were leafing out and the trout were rising on this productive Wisconsin stream

From the Namekagon River in Wisconsin

Closeup insects by Bnewell from the South Fork of the Milk River in Montana

Female Callibaetis (Speckled Dun) Mayfly Dun

Female Callibaetis (Baetidae) (Speckled Dun) Mayfly Dun from the S. Fk. Milk River in Montana

Collected May 29, 2005 from the S. Fk. Milk River in Montana

Added by Bnewell on June 28, 2011

Collected May 29, 2005 from the S. Fk. Milk River in Montana and added by Bnewell on June 28, 2011

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