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.

This is one of the many shallow, unnamed lakes in the Arctic coastal plain near the Dalton Highway.

From Dalton Highway in Alaska

Stream photos

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Tricorythodes (Trico) Mayfly Nymph Tricorythodes (Trico) Mayfly Nymph

Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph from Mystery Creek #308 in Washington

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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 Stenacron interpunctatum (Light Cahill) Mayfly Dun Pictures

This is a fairly small late-season female Stenacron dun.

Lateral view of a Female Stenacron interpunctatum (Heptageniidae) (Light Cahill) Mayfly Dun from the West Branch of Owego Creek in New York

Female Stenacron interpunctatum (Heptageniidae) (Light Cahill) Mayfly Dun from the West Branch of Owego Creek in New York

Ruler view of a Female Stenacron interpunctatum (Heptageniidae) (Light Cahill) Mayfly Dun from the West Branch of Owego Creek in New York The smallest ruler marks are 1 mm.

Ventral view of a Female Stenacron interpunctatum (Heptageniidae) (Light Cahill) Mayfly Dun from the West Branch of Owego Creek in New York

This mayfly was collected from the West Branch of Owego Creek in New York on August 22nd, 2006 and added to Troutnut.com by Troutnut on August 23rd, 2006.

Discussions of this Dun

S. interpunctatum

5 replies

Posted by Taxon on Aug 23, 2006

Last reply on Aug 24, 2006 by Taxon

Looks to be Stenacron interpunctatum (Stenonema heterotarsale).

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