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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 Setvena wahkeena (Perlodidae) (Wahkeena Springfly) Stonefly Nymph from Mystery Creek #199 in Washington
As far as I can tell, this species has only previously been reported from one site in Oregon along the Columbia gorge. However, the key characteristics are fairly unmistakable in all except for one minor detail:
— 4 small yellow spots on frons visible in photos
— Narrow occipital spinule row curves forward (but doesn’t quite meet on stem of ecdysial suture, as it's supposed to in this species)
— Short spinules on anterior margin of front legs
— Short rposterior row of blunt spinules on abdominal tergae, rather than elongated spinules dorsally
I caught several of these mature nymphs in the fishless, tiny headwaters of a creek high in the Wenatchee Mountains.
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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Mcflyangler
Mcflyangler's profile picture
New Mexico, United States

Posts: 35
Mcflyangler on Jun 9, 2016June 9th, 2016, 4:55 pm EDT
The CDC Dry Fly Midge is a perfect imitation for a midge hatch. These tiny flies are fairly easy to tie if you have good eyes, and do really well tandem behind a Griffith's gnat or larger dry fly. They are also really quick to tie, so you can make up dozens of them in an hour for your next trip. Don't be caught off guard by the next midge hatch! keep these in your box at all times!



Hook: Daiichi 1110 size 26 (any 1x length dry fly hook will work) regularly tied from size 20-32.

Thread: 8/0 thread in black, or any color you want to tie this in. Regularly tied in gray, brown, olive and cream.

Hackle: The top feathers of a dry fly cape. These are very small hackle feathers, specifically for small midge flies.

Wings: CDC Feathers. I used "natural dun" color, but common colors are white, brown, and gray.

Music: Sunny, ukulele - Bensound.com
Mc Fly Angler
http://www.mcflyangler.com
https://www.youtube.com/c/mcflylures
Frusso
Frusso's profile picture
Chatsworth, CA

Posts: 1
Frusso on Nov 24, 2018November 24th, 2018, 4:42 am EST
Nice, easy pattern. Looks promising, so I will be tying some up for the Sierras.
Fishtaler
Iasgair
Iasgair's profile picture
Colorado

Posts: 148
Iasgair on Feb 11, 2019February 11th, 2019, 10:46 am EST
Looks like I'll be busy tonight tying flies.

Thanks for sharing that with us.
Martinlf
Martinlf's profile picture
Moderator
Palmyra PA

Posts: 3047
Martinlf on Feb 11, 2019February 11th, 2019, 1:30 pm EST
Try Tiemco 2488's for midges. Good gap. I also like the Varivas 2300 midge hook, but the wire is a bit light in the smallest sizes. I've broken one and bent another on heavier fish.
"He spread them a yard and a half. 'And every one that got away is this big.'"

--Fred Chappell
Jawyellowba
Jawyellowba's profile picture
Posts: 6
Jawyellowba on Feb 11, 2019February 11th, 2019, 7:58 pm EST
Great vid man! Keep up the great work.

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