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.

This is one of the many shallow, unnamed lakes in the Arctic coastal plain near the Dalton Highway.

From Dalton Highway in Alaska

Stream photos

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Tricorythodes (Trico) Mayfly Nymph Tricorythodes (Trico) Mayfly Nymph

Dorsal view of a Tricorythodes (Leptohyphidae) (Trico) Mayfly Nymph from Mystery Creek #308 in Washington

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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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pmd nymph video tutorial

Coha

Cazin, Bosnia

Posts: 2

Coha on Jan 1, 2021January 1st, 2021, 8:41 pm EST

Great video tutorial by Barry Ord Clarke.
PMD Nymph

Wbranch

York & Starlight PA

Posts: 2635

Wbranch on Jan 2, 2021January 2nd, 2021, 3:51 am EST

It is a beautiful fly but in all my experiences with the PMD I have never seen any bigger than a #14 with the vast majority being #16 - #18. As soon as I heard the tier say he was going to use a #12 long shank hook I lost interest in watching the video. I lost interest because while it is a beautiful fly it has many steps and materials and while it would be relatively easy for a skilled tier to construct one on a #12 hook it will be much more difficult on a more typical standard length #16 nymph hook.

I have found a very effective, and much easier to tie, PMD nymph to be the split back style. There are numerous tutorials on YouTube.

Catskill fly fisher for fifty-five years.