Clamp the Tiemco 101 — a traditional straight-eye dry fly hook — and attach the black UNI 8/0 thread at the midpoint of the shank.
Square off the butt ends of a piece of Rust Z-Lon and set it into place for the tail, about one shank length long; it is the trailing shuck that sells the stillborn and emerging midge.
Advance the thread back toward the bend in symmetrical touching wraps, then forward again to cover the exposed Z-Lon. Go back over it once more and return to the midpoint, building the slim body as you go.
Secure a piece of white Z-Lon at about the two-thirds point on the shank and make a loop wing from it, binding the bundle in.
Advance the thread forward right up to the eye — the remaining white Z-Lon becomes the antenna.
Tie in a piece of peacock herl for the thorax, then a Whiting Farms Grizzly Rooster hackle right in front of the wing.
Palmer the peacock herl forward to just short of the eye and take a couple of material-locking wraps of thread to secure it.
Palmer the grizzly hackle forward — three to four turns is usually enough — take a couple of material-locking wraps behind the hackle and trim it off.
Pull the antenna forward, take two material-locking wraps in front of it, and whip finish.
Clip off any straggler hackle fibers, then trim the white Z-Lon to length to form the antenna — a very prominent feature on the adult midge.