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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.
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Sweltsa (Sallfly) Stonefly Adult Pictures

This stonefly was collected from the Vermillion River in Montana on June 14th, 2005 and added to Troutnut.com by Bnewell on June 27th, 2011.


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Sweltsa (Sallfly) Stonefly Adult Pictures

Collection details
Location: Vermillion River, Montana
Date: June 14th, 2005
Added to site: June 27th, 2011
Author: Bnewell
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