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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.

Lateral view of a Clostoeca disjuncta (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington
This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
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.
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Female Isonychia bicolor (Mahogany Dun) Mayfly Dun Pictures

This mayfly was collected from the Beaverkill River in New York on August 24th, 2004 and added to Troutnut.com by Troutnut on January 25th, 2006.


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Female Isonychia bicolor (Mahogany Dun) Mayfly Dun Pictures

Collection details
Location: Beaverkill River, New York
Date: August 24th, 2004
Added to site: January 25th, 2006
Author: Troutnut
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