
Barr's Emerger (BWO/PMD)
John Barr's famous emerger pattern designed to imitate mayflies struggling to break through the surface film during the vulnerable emergence stage. Available in BWO (Blue-Winged Olive) and PMD (Pale Morning Dun) color schemes, this fly is devastating when trout refuse high-floating duns. The wingcase fibers pulled down as legs perfectly suggest an insect trapped between nymph and adult stages.
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Materials
TMC 2487 or TMC 2488, sizes 16-24
8/0 Iron Dun (BWO) or Tan (PMD)
Brown or ginger hackle fibers
Olive Superfine dubbing
Pale yellow Superfine dubbing
Dark dun hackle fibers (BWO) or pale olive/cream fibers (PMD)
Gray muskrat dubbing (BWO) or pale yellow/tan dubbing (PMD)
Tips of wingcase fibers divided to each side
How to Tie the Barr's Emerger (BWO/PMD)
- 1
Step 1
Place the curved hook in the vise and start thread behind the eye, wrapping back to create a thread base to the bend.
- 2
Step 2
Select 8-12 brown or ginger hackle fibers and tie them in at the bend as a trailing shuck about one shank length long. Trim butts and bind down.
- 3
Step 3
Dub a slim, tapered abdomen forward to about 2/3 the length of the hook shank. Use olive for BWO or pale yellow for PMD.
Keep the abdomen thin—this is a sparse, delicate pattern.
- 4
Step 4
Select a dozen dun or pale hackle fibers for the wingcase. Tie the clump in by the butt at the front of the abdomen, tips pointing forward over the hook eye. Secure butts and trim flush.
- 5
Step 5
Dub a small, tighter thorax with gray muskrat (BWO) or pale yellow/tan (PMD) dubbing, leaving room at the eye for a head.
- 6
Step 6
Pull wingcase fibers over the top of the thorax, flat, and tie down just behind the hook eye. Trim excess.
- 7
Step 7
Divide the remaining wingcase fibers and pull a few down each side as legs, binding in place with thread wraps.
- 8
Step 8
Build a small thread head and whip finish. Optionally add a tiny drop of head cement.
Watch Tying Tutorial
https://www.youtube.com/watch?v=JmJXuEvogMU
Credit: John Barr