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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.

Mystery Creek # 237 in Montana

Stream photos

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Clostoeca disjuncta (Northern Caddisfly) Caddisfly LarvaClostoeca disjuncta (Northern Caddisfly) Caddisfly Larva
Lateral view of a Clostoeca disjuncta (Limnephilidae) (Northern Caddisfly) Caddisfly Larva from the Yakima River in Washington
This one was surprisingly straightforward to identify. The lack of a sclerite at the base of the lateral hump narrows the field quite a bit, and the other options followed fairly obvious characteristics to Clostoeca, which only has one species, Clostoeca disjuncta.
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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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  3. I think I know, but want verification

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  2. Get Bugs Identified
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  3. I think I know, but want verification

Byhaugh has attached this picture to aid in identification. The message is below.
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Byhaugh
Hawaii

Posts: 56
Byhaugh on Jul 13, 2017July 13th, 2017, 4:47 am EDT
This is the spinner I want verified identification. Thanks!

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Troutnut
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Administrator
Bellevue, WA

Posts: 2758
Troutnut on Jul 13, 2017July 13th, 2017, 6:58 am EDT
Where was it caught?
Jason Neuswanger, Ph.D.
Troutnut and salmonid ecologist
Byhaugh
Hawaii

Posts: 56
Byhaugh on Jul 13, 2017July 13th, 2017, 7:42 am EDT
On the Madison River in early July near Westfork in Cameron, Mt
Millcreek
Healdsburg, CA

Posts: 344
Millcreek on Jul 13, 2017July 13th, 2017, 10:48 am EDT
My guess would be Siphlonurus. You can see an image here:
http://bugguide.net/node/view/544132/bgimage

My second guess would be Rhithrogena. You can see an image here:
http://bugguide.net/node/view/1069133/bgimage
"If we knew what it was we were doing, it would not be called research, would it?"
-Albert Einstein

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