Ultra wire, small Red ultra wire, small (One length)
Opal tinsel, medium Opal opal tinsel, medium (Flashback)
Arizona Simi Seal dubbing Canadian black (Body and collar)
How to tie it
Set a Head Turner bead on a jig hook and start red thread, then tie in five or six pheasant tail fibres for the tail followed by small red wire.
Flip the fly over and tie a piece of medium opal tinsel right down the centre of the shank, leaving it hanging out the back. Flipping is necessary because a jig hook rides point-up. What looks like the underside in the vise is the back of the finished fly.
Dub a slim noodle of Canadian Black Arizona Simi Seal and build a thin body. Slim is the point here; the collar supplies the bulk later.
Pull the opal flashback over the body, tie it off and trim. On a small dark nymph the flashback is the only thing giving the fly a trigger point.
Counter-rib the red wire forward for segmentation, tie it off and helicopter the tag out rather than cutting it.
Spin a dubbing loop of the same Canadian Black Simi Seal (or split your thread) and wrap a short collar behind the bead, then whip finish. That shaggy collar gives the fly its legs and its movement.