Materials used for Pale Morning Dun Mayfly Cripple:

PMD Mayfly Cripple|
PMD Mayfly Cripple Materials|

A female Pale Morning Dun

PMD Female |




Daiichi 1310, Dai Riki 305 #14 – 16 or any dry fly hook


8/0 yellow, light cahill


Zelon – mayfly brown


Superfine dubbing – yellowish olive or march brown


EP Trigger Point Fibers – light or medium dun


Light or medium dun


  1. Attach thread to hook behind hook eye and wind backwards about halfway.
  2. Tie in Zelon and hold upwards and on top of hook while continuing to wrap thread to hook barb.
  3. Add dubbing to thread and wind forward until 2/3 point.
  4. Tie in wing material, allowing materials to extend over hook eye. Wrap tightly as materials are slick. Cut rear section and leave small tuft.
  5. Tie in hackle. Place 3 wraps behind wing and lift wing material up and place 2 wraps in front. Tie off hackle and cut excess.
  6. Whip finish.
  7. Trim tail 2/3 body length.
  8. To trim wing, pull wing back and trim at end of body.
  9. Trim hackle bottom even with hook point to allow low profile in water.

For more information about PMDs and their life-cycle, check out my blog – Pale Morning Duns – PMDs.


  1. I love the actual insect pic!! When would it be best to use this type of fly during the year? Also, would this this a lake or river fly or both? Very cool!!

    1. Hey Brian,

      The Pale Morning Dun (PMD) is a fly which lives in rivers – they need moving water to survive. The hatch generally begins in late May and will continue through September. In addition, there are a few PMD “cousins”, not PMDs, but similar size and color that may hatch throughout the year. The Metolius has some “cousins” hatching in October and PMD imitations work just fine!

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.