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.

This view of the pipeline, the Atigun River, and an impressive sunset/rise was one of my first views of the North Slope as I came through Atigun Pass in the middle of the night.

From the Atigun River in Alaska

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.

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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.

Amiocentrus aspilus (Little Western Weedy Water Sedge) Caddisfly Adult Pictures

Lateral view of a Amiocentrus aspilus (Brachycentridae) (Little Western Weedy Water Sedge) Caddisfly Adult from the Henry's Fork of the Snake River in Idaho

Dorsal view of a Amiocentrus aspilus (Brachycentridae) (Little Western Weedy Water Sedge) Caddisfly Adult from the Henry's Fork of the Snake River in Idaho

Ventral view of a Amiocentrus aspilus (Brachycentridae) (Little Western Weedy Water Sedge) Caddisfly Adult from the Henry's Fork of the Snake River in Idaho

Each ruler mark is 1/16 inch.

Ruler view of a Amiocentrus aspilus (Brachycentridae) (Little Western Weedy Water Sedge) Caddisfly Adult from the Henry's Fork of the Snake River in Idaho The smallest ruler marks are 1/16".

This caddisfly was collected from the Henry's Fork of the Snake River in Idaho on August 11th, 2018 and added to Troutnut.com by Troutnut on June 12th, 2019.

Discussions of this Adult

Amiocentraus aspilus male

Posted by Creno on Jun 14, 2019

Last reply on Jun 14, 2019 by Creno

a great fishing hatch

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