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.

Upper Titcomb Lake

From Titcomb Basin in Wyoming

Stream photos

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Coleoptera (Beetle) Insect Larva Coleoptera (Beetle) Insect Larva

Lateral view of a Coleoptera (Beetle) Insect Larva from Sears Creek in Washington

6 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.

A little quick bug collecting in the Cascades during runoff

By Troutnut on June 2nd, 2022

I was in the area of the Icicle River on June 3, so I toured the scenery and admired the power of the river ripping down through the mountains as snowmelt peaks in the high country. I wanted to try some new photography gadgets, so I collected a few nymphs from the river and a tiny, probably fishless tributary called Chatter Creek. It took a long time just to find somewhere I could safely step onto gravel in the river to sample, and the creek that is probably ankle-deep most times was waist deep.