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.

A trackless paradise two days deep in the Yellowstone backcountry

From Mystery Creek # 218 in Wyoming

Stream photos

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Perlodidae (Springflies and Yellow Stones) Stonefly Nymph Perlodidae (Springflies and Yellow Stones) Stonefly Nymph

Artistic view of a Perlodidae (Springflies and Yellow Stones) Stonefly Nymph from the Yakima River in Washington

This one seems to lead to Couplet 35 of the Key to Genera of Perlodidae Nymphs and the genus Isoperla, but I'm skeptical that's correct based on the general look. I need to get it under the microscope to review several choices in the key, and it'll probably end up a different Perlodidae.

11 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.

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.

Site updates from September 19, 2011

Photos by Troutnut from Denali Highway in Alaska

Along the roadside of the Denali Highway, a hunter more successful than I had a good sense of humor.

From Denali Highway in Alaska

Comments / replies

GONZO
Site Editor
"Bear Swamp," PA

Posts: 1681

GONZO on Sep 25, 2011September 25th, 2011, 10:09 am EDT

"Although buried, the unfortunate victim attempted to point in the direction of the fleeing culprit."

Entoman

Northern CA & ID

Posts: 2604

Entoman on Sep 25, 2011September 25th, 2011, 5:06 pm EDT

Haha! "Far Side" has nothing on you! :):)

"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

FredH