Mercer's Micro Mayfly

Mercer's Micro Mayfly

Nymph
Mayfly
Intermediate
Rainbow Trout
Brown Trout
Hook: 14-18

Mike Mercer designed the Micro Mayfly, a slim nymph for imitating tiny mayfly nymphs. It has a gold tungsten bead, a segmented abdomen of stripped peacock quill ribbed with fine wire, and pheasant tail for the tail, wing case and legs over an olive dubbed thorax. It suits clear water and selective trout during mayfly hatches, in both rivers and stillwaters. Tie it in sizes 14 to 18.

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Materials

Hook

Tiemco 3769 hook, sizes 14-18

14-18

Bead

Tungsten bead, gold, 5/64 to 3/32 inch

Gold · 5/64-3/32 in

Thread

UTC Ultra Thread 70 Denier, brown

Brown · 70 denier

Tail

Pheasant tail fibers

Natural

Body

Stripped peacock herl quill

Natural

Rib

Small copper wire (or gold wire)

Copper · Small

Flash

Pearl flash strand (Flashabou or Mirage tinsel), pulled over the pheasant tail wing case

Pearl

Optional
Wing Case

Pheasant tail fibers, also used for the legs

Natural

Thorax

Hareline Superfine Dubbing, olive

Olive

Legs

Pheasant tail fibers, the tips of the wing case fibers

Natural

How to Tie the Mercer's Micro Mayfly

  1. 1

    Step 1

    Slide the gold tungsten bead onto the hook and set the hook in the vise.

  2. 2

    Step 2

    Start the brown thread behind the bead and wrap a smooth base back to the bend.

  3. 3

    Step 3

    Tie in a small bunch of pheasant tail fibers at the bend for a short tail. Bind the butts down and trim the excess.

  4. 4

    Step 4

    Tie in a stripped peacock quill and a length of fine copper or gold wire at the bend, then bring the thread forward.

  5. 5

    Step 5

    Wrap the quill forward in touching turns to form a segmented abdomen over the rear of the shank, leaving room for the thorax. Tie it off and trim.

  6. 6

    Step 6

    Wrap the wire forward over the quill in open turns as a rib. Tie it off and remove the excess.

  7. 7

    Step 7

    Tie in a strand of pearl flash on top of the shank in front of the abdomen, pointing back over the body.

  8. 8

    Step 8

    Tie in a bunch of pheasant tail fibers on top of the shank in front of the abdomen, with the tips pointing back, for the wing case and legs.

  9. 9

    Step 9

    Dub a small, rounded olive thorax up to the bead.

  10. 10

    Step 10

    Pull the pheasant tail fibers forward over the thorax and tie them down just behind the bead, leaving the tips extending past the eye.

  11. 11

    Step 11

    Split the tips, fold them back along each side of the thorax and secure them as legs. Trim them to length.

  12. 12

    Step 12

    Pull the flash strand forward over the wing case, tie it down behind the bead and trim the excess.

  13. 13

    Step 13

    Cover the tie-down wraps with a pinch of dubbing behind the bead, then whip finish and trim the thread.

Watch Tying Tutorial

https://www.youtube.com/watch?v=nvazoySB_iM

Credit: InTheRiffle

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