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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.

Mystery Creek # 237 in Montana

Stream photos

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Tricorythodes (Trico) Mayfly NymphTricorythodes (Trico) Mayfly Nymph
Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph from Mystery Creek #308 in Washington
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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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Closeup insects by Bnewell from the Touchet River in Washington

Zapada cinctipes (Tiny Winter Black) Stonefly Adult
1 Picture
Zapada cinctipes (Nemouridae) (Tiny Winter Black) Stonefly Adult from the N. Fk. Touchet River in Washington
Added by Bnewell on April 21, 2012
Collected April 16, 2012 from the N. Fk. Touchet River in Washington and added by Bnewell on April 21, 2012

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