The Harrops Callibaetis Paraspinner uses a creative technique to create a spinner wing, a simple clip of the parachute wing.

Harrops Callibaetis Paraspinner|
Harrops Callibaetis Paraspinner|
Harrops Callibaetis Paraspinner Materials |



Daiichi 1180 or 1190, Dai Riki 300 or TMC 100, #18 – 14


8/0 tan


Microfibbets or Coq de Leon tailing material – light tan


Turkey or goose biot – callibaetis color


Poly trimmed to 1/3 usual length


Superfine dubbing – callibaetis color


Grizzly or silver badger, two sizes larger than usual. Trim fibers over eye to form a wide “V” shape


  1. Begin thread at hook eye. Wind thread half way down shank and half way back towards eye ending at ¼ mark.
  2. Tie in post material.
  3. Tie in 2 tails and split. Length should be 1 ½ – 2 X body length.
  4. Tie in biot, curved side down. Optional – lay thin base of head cement or super glue to add strength. Wrap forward to thorax area, ending at post.
  5. Tie in hackle up post.
  6. Dub thorax and position thread directly behind eye.
  7. Wrap down post 5 – 6 turns and tie off.
  8. Trim hackle by cutting “V”.
  9. Whip finish.

This is my version of a Rene Harrop designed fly.

To learn more about the real bugs, visit my blog – Callibaetis Mayflies.


  1. Another excellent tie, John; thank you.
    I also use a Catskill style callibaetis but, with a wally wing with the underneath, hackle removed. As often as not it produces savage takes from large rainbows. I assume its success is also a result of a larger profile.

  2. John, I want to thank you for sharing all this wonderful information. The detailed info on tying these flies saves a lot of research for those of us who may not be familiar with all of them, or in my case, I have not tied most of these dries. I still remember the excellent presentation you gave Southern Oregon Fly Fishers.

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