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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 Stenonema terminatum Mayfly Spinner Pictures

I was able to identify this female because I captured her while she was mating with an identifiable male.

Ruler view of a Female Stenonema terminatum (Heptageniidae) Mayfly Spinner from the West Branch of the Delaware River in New York The smallest ruler marks are 1 mm.
Lateral view of a Female Stenonema terminatum (Heptageniidae) Mayfly Spinner from the West Branch of the Delaware River in New York
Female Stenonema terminatum (Heptageniidae) Mayfly Spinner from the West Branch of the Delaware River in New York
Dorsal view of a Female Stenonema terminatum (Heptageniidae) Mayfly Spinner from the West Branch of the Delaware River in New York
Ventral view of a Female Stenonema terminatum (Heptageniidae) Mayfly Spinner from the West Branch of the Delaware River in New York

This mayfly was collected from the West Branch of the Delaware River in New York on June 7th, 2007 and added to Troutnut.com by Troutnut on June 8th, 2007.


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Female Stenonema terminatum Mayfly Spinner Pictures

Collection details
Location: West Branch of the Delaware River, New York
Date: June 7th, 2007
Added to site: June 8th, 2007
Author: Troutnut
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