Although my preference is not to fish these small flies, they can be extremely productive in the right waters, and by right, I mean most all waters. Simple to tie, most beginners will tie hundreds of these, just to get the principles of thread control, ribbing and whip finishing down.
Midges
Hook: TMC 2499, TMC 101, or your favorite small hook
Thread: Veevus 12/0 or 16/0 - I prefer 16/0 (no build up)
Ribbing: Fine Lagartun Wire, Krystal Flash, Montana Midge Flash
Bead: Copper, Silver, Black, diamond plastic,
Dubbing Head: Super Fine Dubbing- Match your color.