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.

We were lucky to be able to fish through this storm as it skirted around us to the north, giving us just enough clouds to prompt a BWO hatch but keeping the lighting at a safe distance.

From Slough Creek in Wyoming

Stream photos

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Psychodidae True Fly Larva Psychodidae True Fly Larva

Lateral view of a Psychodidae True Fly Larva from Mystery Creek #308 in Washington

This wild-looking little thing completely puzzled me. At first I was thinking beetle or month larva, until I got a look at the pictures on the computer screen. I made a couple of incorrect guesses before entomologist Greg Courtney pointed me in the right direction with Psychodidae. He suggested a possible genus of Thornburghiella, but could not rule out some other members of the tribe Pericomini.

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.

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.

Updates from February 3, 2004

Closeup insects by Troutnut from the Namekagon River in Wisconsin

Leptophlebia cupida (Black Quill) Mayfly Nymph

4 Pictures

Leptophlebia cupida (Leptophlebiidae) (Black Quill) Mayfly Nymph from the Namekagon River in Wisconsin

This one survived several days in an aquarium before being photographed. Leptophlebia cupida is known as a durable species.

I'm trying to try a similar specimen (link to the next specimen) and see how that works.

Collected February 3, 2004 from the Namekagon River in Wisconsin

Added by Troutnut on January 25, 2006

Collected February 3, 2004 from the Namekagon River in Wisconsin and added by Troutnut on January 25, 2006