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.

Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Male Leucrocuta hebe (Little Yellow Quill) Mayfly Spinner Pictures

Lateral view of a Male Leucrocuta hebe (Heptageniidae) (Little Yellow Quill) Mayfly Spinner from the Teal River in Wisconsin

Male Leucrocuta hebe (Heptageniidae) (Little Yellow Quill) Mayfly Spinner from the Teal River in Wisconsin

Dorsal view of a Male Leucrocuta hebe (Heptageniidae) (Little Yellow Quill) Mayfly Spinner from the Teal River in Wisconsin

Artistic view of a Male Leucrocuta hebe (Heptageniidae) (Little Yellow Quill) Mayfly Spinner from the Teal River in Wisconsin

This mayfly was collected from the Teal River in Wisconsin on July 2nd, 2005 and added to Troutnut.com by Troutnut on April 22nd, 2006.

Discussions of this Spinner

Not Stenacron, probably Leucrocuta

Posted by GONZO on Oct 19, 2006

Last reply on Oct 19, 2006 by GONZO

Size alone would make Stenacron unlikely, but notice the unmarked legs and that the darkest grouping of crossveins is in-between R1 and SC (Stenacron would have them between R1 and R2). Compare this specimen to the one on the Leucrocuta page--they are probably the same species.

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