Brooks Midge Emerger
Hook: Emerger hook sizes 18 to 24.
Thread: Black, 8/0 or 70-denier.
Shuck: Black antron on zelon.
Post: Small white foam cylinder or a piece cut from a sheet.
Body: Black Thread.
Thorax: Black super fine dubbing.
Hackle: Black dry fly. (use grizzly if you don't have it)
Although not essential, using a black thread that you can spin to flatten will allow you to make a smoother body. Also, other body colors can be used to suit local preferences.