PMD Emerger
Hook - Tiemco Model 102Y/Size 19
Thread - 8/0 UNI-Thread (Primrose)
Hackle - Bleached Starling (Tan)
Trailing Shuck - Antron Fibers (Amber)
Body - Seal Dubbing Blend (Olive/Orange/Yellow)
This is the pattern I came up with for the PMD swap. The fly is intended to be fished in the surface film, as an emerger. The tailing material is intended to imitate the exoskeleton of the nymphal shuck, as the insect is in the process of emerging.
My assistant, carefully inspecting the swap flies.

With a size 19 hook, the flies are pretty small. Kitty had to get up close to look at the details...