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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 Holocentropus (Polycentropodidae) Caddisfly Larva from the Yakima River in Washington
This one seems to tentatively key to Holocentropus, although I can't make out the anal spines in Couplet 7 of the Key to Genera of Polycentropodidae Larvae nor the dark bands in Couplet 4 of the Key to Genera of Polycentropodidae Larvae, making me wonder if I went wrong somewhere in keying it out. I don't see where that could have happened, though. It might also be that it's a very immature larva and doesn't possess all the identifying characteristics in the key yet. If Holocentropus is correct, then Holocentropus flavus and Holocentropus interruptus are the two likely possibilities based on range, but I was not able to find a description of their larvae.
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.

Flyguide1
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East Tn

Posts: 15
Flyguide1 on Jul 24, 2018July 24th, 2018, 5:34 am EDT
Just wanted to say hi to everyone!
Troutnut
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Administrator
Bellevue, WA

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Troutnut on Jul 24, 2018July 24th, 2018, 6:11 am EDT
Hi, and welcome.
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Hunter1
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Maryland

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Hunter1 on Jul 24, 2018July 24th, 2018, 9:44 am EDT
Hi, Welcome from Maryland.
BobbyHead
Tampa, Florida

Posts: 7
BobbyHead on Jul 29, 2018July 29th, 2018, 10:47 pm EDT
Welcome to the forum!

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