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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.

Dorsal view of a Amphizoa (Amphizoidae) Beetle Larva from Sears Creek in Washington
This is the first of it's family I've seen, collected from a tiny, fishless stream in the Cascades. The three species of this genus all live in the Northwest and are predators that primarily eat stonefly nymphs Merritt R.W., Cummins, K.W., and Berg, M.B. (2019).
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.

Female Leucrocuta hebe (Little Yellow Quill) Mayfly Dun Pictures

I found Catskill brown trout eagerly surface feeding to this species.

This mayfly was collected from the Beaverkill River in New York on August 22nd, 2004 and added to Troutnut.com by Troutnut on January 25th, 2006.


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Female Leucrocuta hebe (Little Yellow Quill) Mayfly Dun Pictures

Collection details
Location: Beaverkill River, New York
Date: August 22nd, 2004
Added to site: January 25th, 2006
Author: Troutnut
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