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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.

Mystery Creek # 256 in Idaho

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Limnephilidae (Giant Sedges) Caddisfly Larva Limnephilidae (Giant Sedges) Caddisfly Larva

Dorsal view of a Limnephilidae (Giant Sedges) Caddisfly Larva from the Yakima River in Washington

This specimen resembled several others of around the same size and perhaps the same species, which were pretty common in my February sample from the upper Yakima. Unfortunately, I misplaced the specimen before I could get it under a microscope for a definitive ID.

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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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Updates from September 3, 2006

Updates from September 3, 2006

Closeup insects by Troutnut from Willowemoc Creek in New York

Female Attenella margarita (Little Western Blue-Winged Olive) Mayfly Dun

Lateral view of a Female Attenella margarita (Ephemerellidae) (Little Western Blue-Winged Olive) Mayfly Dun from Willowemoc Creek in New York

I found this dun unusually late in the year for anything in the Ephemerellidae family in the East. It's also small for that family.

Collected September 3, 2006 from Willowemoc Creek in New York

Added by Troutnut on October 3, 2006

Collected September 3, 2006 from Willowemoc Creek in New York and added by Troutnut on October 3, 2006

Female Leucrocuta hebe (Little Yellow Quill) Mayfly Spinner

Lateral view of a Female Leucrocuta hebe (Heptageniidae) (Little Yellow Quill) Mayfly Spinner from Willowemoc Creek in New York

Collected September 3, 2006 from Willowemoc Creek in New York

Added by Troutnut on October 3, 2006

Collected September 3, 2006 from Willowemoc Creek in New York and added by Troutnut on October 3, 2006

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