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.

Stream photos

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Hydropsyche (Spotted Sedge) Caddisfly Larva Hydropsyche (Spotted Sedge) Caddisfly Larva

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington

With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.

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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.

Troutnut is a project started in 2003 by salmonid ecologist Jason "Troutnut" Neuswanger to help anglers and fly tyers unabashedly embrace the entomological side of the sport. Learn more about Troutnut or support the project for an enhanced experience here.

Moved to Agnetina capitata

Agnetina flavescens (Golden Stone) Stonefly Nymph

3 Pictures

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

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

Collected November 14, 2004 from Fall Creek in New York

Added by Troutnut on April 12, 2006

Collected November 14, 2004 from Fall Creek in New York and added by Troutnut on April 12, 2006

Entoman

Northern CA & ID

Posts: 2604

Entoman on Apr 8, 2013April 8th, 2013, 3:27 pm EDT

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

"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman