Start black thread at the eye and lay a thread base down to where the barb would be, then take the thread back up.
Tie in black pheasant tail fibers for the tail, no longer than a shank length, working from the eye toward the bend so they stay on top of the shank; trim the excess.
Tie in the chartreuse wire for the rib at the bend, keeping it a body length with no lumps.
Dub a slim body of black vicuna dubbing from the bend forward, leaving room at the front for the beard and a large head.
Rib the body forward with the wire in even, open turns; tie it off and helicopter the wire free.
Tie in a beard of black pheasant tail fibers underneath, tips just kissing the hook point; roll them under with your thumbnail and secure.
Take the thread to the eye and wrap Glo-Brite #12 floss to build a prominent fluorescent head, wrapping back over the tag to lock it.