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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.

Lateral view of a Female Sweltsa borealis (Chloroperlidae) (Boreal Sallfly) Stonefly Adult from Harris Creek in Washington
I was not fishing, but happened to be at an unrelated social event on a hill above this tiny creek (which I never even saw) when this stonefly flew by me. I assume it came from there. Some key characteristics are tricky to follow, but process of elimination ultimately led me to Sweltsa borealis. It is reassuringly similar to this specimen posted by Bob Newell years ago. It is also so strikingly similar to this nymph from the same river system that I'm comfortable identifying that nymph from this adult. I was especially pleased with the closeup photo of four mites parasitizing this one.
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 Feb 3, 2017February 3rd, 2017, 6:00 am EST
These are quite popular mayfly (baetis) patterns because they sink quickly due to the two beads. Where I was fishing on the Animas, the water was very murky, and I had to get deep to reach them. The trout were looking for mayfly nymphs, and this worked great. Also the flashabou back really adds to the flash and noticeability of this fly.



Hook: Umpqua U101 size 18
Tail: Michrofibbets
Weight: 2 quantity of 2mm sized brass beads
Thread: Ultra Thread 70 dark brown
Rib: Ultra Wire - small - dark olive
Thorax: super fine dubbing - brown
Legs: Partridge neck feather
Thorax casing: Flashabou
Adhesive: Solarez UV Curing Resin - Bone Dry formula
Mc Fly Angler
http://www.mcflyangler.com
https://www.youtube.com/c/mcflylures
Iasgair
Iasgair's profile picture
Colorado

Posts: 148
Iasgair on May 20, 2017May 20th, 2017, 4:55 pm EDT
I like it. Just may tie a few tomorrow. Different seeing a nymph with microfibbets for a tail, but worth a shot.
Mcflyangler
Mcflyangler's profile picture
New Mexico, United States

Posts: 35
Mcflyangler on May 23, 2017May 23rd, 2017, 2:18 am EDT
Use something else for the tail if you want. I find this works just fine...
Mc Fly Angler
http://www.mcflyangler.com
https://www.youtube.com/c/mcflylures

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