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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.

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.

I collected some bugs while camped near this tiny, tiny creek. It's too small for pretty much anyone to bother fishing.

Closeup insects by Troutnut from Trealtor Creek in Idaho

Lateral view of a Onocosmoecus unicolor (Limnephilidae) (Great Late-Summer Sedge) Caddisfly Adult from Trealtor Creek in Idaho
One key characteristic not clearly photographed, but clear in under the microscope: this specimen's midtibiae have 2 apical spurs and 1 preapical spur.
Lateral view of a Male Neoleptophlebia heteronea (Leptophlebiidae) (Blue Quill) Mayfly Spinner from Trealtor Creek in Idaho
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