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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.

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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Female Drunella cornuta (Large Blue-Winged Olive) Mayfly Spinner Pictures

I took this picture of this specimen on the stream when I collected her, to show the color of the egg mass.

Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Lateral view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Dorsal view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Ventral view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania
Ruler view of a Female Drunella cornuta (Ephemerellidae) (Large Blue-Winged Olive) Mayfly Spinner from Brodhead Creek in Pennsylvania The smallest ruler marks are 1 mm.

This mayfly was collected from Brodhead Creek in Pennsylvania on May 27th, 2007 and added to Troutnut.com by Troutnut on June 4th, 2007.


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Female Drunella cornuta (Large Blue-Winged Olive) Mayfly Spinner Pictures

Collection details
Location: Brodhead Creek, Pennsylvania
Date: May 27th, 2007
Added to site: June 4th, 2007
Author: Troutnut
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