Here is the fly pattern sheet for Pay Dorsey’s Mercury Blood Midge.

Materials

Hook:

Daiichi 1270 or Tiemco 200R #18-22

Bead:

Spirit River Hi-Lite Glass Bead Quick Silver (SL) Extra Small

Thread:

Red 8/0 UNI thread

Body:

Use thread for body

Rib:

Gold wire, extra small

Thorax:

Peacock herl

Here is a link to Pat Dorsey demonstrating how to tie the fly.