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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Limnephilus (Summer Flier Sedge) Caddisfly Larva Limnephilus (Summer Flier Sedge) Caddisfly Larva

Case view of a Limnephilus (Limnephilidae) (Summer Flier Sedge) Caddisfly Larva from the Yakima River in Washington

This seems to be a young larva of Limnephilus. Although not clear in the picture, several ventral abdominal segments have chloride epithelia.

7 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 August 22, 2020

Photos by Troutnut from the Snake River in Idaho

Snake River from the Clark Hill Rest Area on highway 26. Smoke from distant California wildfires was clouding eastern ID / west WY a couple weeks before this year's coast-wide smoke catastrophe.

From the Snake River in Idaho

Closeup insects by Troutnut from the Snake River in Idaho

Male Epeorus albertae (Pink Lady) Mayfly Spinner

12 Pictures

Male Epeorus albertae (Heptageniidae) (Pink Lady) Mayfly Spinner from the Snake River in Idaho

This spinner appeared inside our car after a rest stop overlooking the Snake, so that's most likely where it came from. Two different keys place it firmly in Epeorus albertae.

Collected August 22, 2020 from the Snake River in Idaho

Added by Troutnut on September 18, 2020

Collected August 22, 2020 from the Snake River in Idaho and added by Troutnut on September 18, 2020