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.

Of all the pools I've fished, this one was most deserving of the colorful little brook trout it held.

From Mystery Creek # 89 in New York

Stream photos

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Kogotus Stonefly Nymph Kogotus Stonefly Nymph

Dorsal view of a Kogotus (Perlodidae) Stonefly Nymph from Mystery Creek #199 in Washington

This one pretty clearly keys to Kogotus, but it also looks fairly different from specimens I caught in the same creek about a month later in the year. With only one species of the genus known in Washington, I'm not sure about the answer to this ID.

8 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.

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Agnetina flavescens (Golden Stone) Stonefly Nymph Pictures

I took a few closeup pictures of this stonely with my old camera and a microscope.

Dorsal view of a Agnetina flavescens (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York

Agnetina flavescens (Perlidae) (Golden Stone) Stonefly Nymph from Fall Creek in New York

This stonefly was collected from Fall Creek in New York on November 15th, 2004 and added to Troutnut.com by Troutnut on April 12th, 2006.

Discussions of this Nymph

Moved to Agnetina capitata

Posted by Entoman on Apr 8, 2013

Last reply on Apr 8, 2013 by Entoman

The occipital ridge shows this specimen to be in the subfamily Perlinae. The distinctive head markings connote a form of Agnetina capitata I've seen in photos of Midwestern specimens. I'm not positive on this one as I can't vouch for the accuracy of the photos compared with it, but I hated to see this guy languish on the family page when it's clearly Perlinae.

Compare the pronotal and head markings with this specimen. Heck, the whole dorsum is a good match. It seems a credible site.
http://www.shl.uiowa.edu/env/limnology/macroinvertebrates/Plecoptera/Perlidae/Agnetina%20capitata16x12.jpg

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