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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.

Ventral view of a Hydropsyche (Hydropsychidae) (Spotted Sedge) Caddisfly Larva from the Yakima River in Washington
With a bit of help from the microscope, this specimen keys clearly and unsurprisingly to Hydropsyche.
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.

Taju has attached this picture to aid in identification. The message is below.
Hartola, Finland

Posts: 11
Taju on Nov 15, 2008November 15th, 2008, 7:38 am EST
Is it or not? This is also from Kentucky, 8.10.2007.

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"Bear Swamp," PA

Posts: 1681
GONZO on Nov 15, 2008November 15th, 2008, 7:43 am EST
Looks like it to me, but Dave can confirm better than I can.
Grants Pass, OR

Posts: 302
Creno on Nov 15, 2008November 15th, 2008, 8:19 am EST
This coloration looks like P.sayi - P. cinerea lacks the very dark apex of the hind wings.
Hartola, Finland

Posts: 11
Taju on Nov 15, 2008November 15th, 2008, 6:46 pm EST
Many thanks to both of You.

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