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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

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.

Closeup insects by Bnewell from the Touchet River in Washington

Male Cinygmula ramaleyi (Heptageniidae) (Small Western Gordon Quill) Mayfly Spinner from the Touchet River in Washington
Adults were collected from the North Fork of the Touchet River at Touchet Corral, 21 Sept. One photo is the swarm of males over the stream about 3 PM, air temp about 66 degree.

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Posts: 560
Sayfu on Sep 23, 2011September 23rd, 2011, 10:34 am EDT
My God! Does that Touchet River have every known aquatic insect known to fly anglers?
Entoman's profile picture
Northern CA & ID

Posts: 2604
Entoman on Sep 23, 2011September 23rd, 2011, 12:32 pm EDT
Hi Sayfu,

Most small freestones have surprising biodiversity as compared to larger rivers, tail waters, and especially spring creeks. Very few species (if any) necessarily constitute what we would refer to as fishable hatches, let alone be the cause for selectivity.


"It's not that I find fishing so important, it's just that I find all other endeavors of Man equally unimportant... And not nearly as much fun!" Robert Traver, Anatomy of a Fisherman

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