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Lateral view of a Female Hexagenia limbata (Ephemeridae) (Hex) Mayfly Dun from the Namekagon River in Wisconsin
Hex Mayflies
Hexagenia limbata

The famous nocturnal Hex hatch of the Midwest (and a few other lucky locations) stirs to the surface mythically large brown trout that only touch streamers for the rest of the year.

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.
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Troutnut.com User PCfishes (John Carrier)

Troutnut.com User PCfishes (John Carrier)

Real Name
John Carrier
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John Carrier
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Biography & Thoughts
I started fly fishing 30 years ago, and now am on the verge of early retirement/career change to guiding full time- spring-fall in SE Minnesota/NE Iowa, winter on St. Croix, US Virgin Islands. I like to catch and keep. The science behind catch and release is poor. Catch and keep a few fish, and then get out of the water will preserve the trout more effectively than catch and release 100 fish, killing ten. Habitat management, seasons and limits will have a real impact on increasing populations.
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http://pcfishes.com/
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I'm for hire! Fly fishing guiding, fly fishing lessons, fly tying.
Email me, if you would like to set a date to go fishing sometime.
pastor_carrier@mac.com

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