Pull a single ply of poly yarn in half (or in three pieces for a small
fly) and tie in the back wing as a tail.
Tie in the hackle at the front
of the body. Dub the body back to the end of the hook shank. Wrap a palmer
hackle. Then rib the body with the tying thread towards the eye.
Trim
the hackle at top and bottom. Tie in the wing at the front. Clip the two
wings as shown on the picture, and leave a small head.