Trailing shuck Rust or orange Antron/Darlon (small pinch)
Dubbing (body) Gray Superfine (small pinch)
Poly yarn (wing post) Gray antron (1 small clump)
Hackle Dun hackle (1 feather)
How to tie it
Start gray thread mid-shank and wrap back to the bend.
Tie in a short trailing shuck of rust Antron, no longer than half a shank and kept sparse and stubby.
Return the thread forward and tie in a clump of gray poly yarn as an upright wing post at the 70% mark; stand it up with a few horizontal thread turns around the base.
Tie a dun hackle in at the base of the post, shiny side up.
Dub a thin gray body from the shuck forward to just past the post, half the dubbing you think, this is a tiny fly.
Wind the hackle 3-4 turns down the post parachute-style and secure the tip with thread under the post; trim the excess.
Whip finish behind the eye, trim the post to about one shank height, and set a tiny drop of cement at the base.