Legs Blue/black barred rubber legs (2-3 pairs Sili Legs)
Thorax Blue/gray material (thin pinch dubbing)
Indicator post Orange 2mm foam (1 small tab)
How to tie it
Lay a thin thread base over the shank to give the foam something to bite into.
Bind a narrow blue foam strip on top at the bend and extend it well past the hook; segment the extended abdomen with 3-4 open thread wraps back over the foam, then bring the thread forward.
Tie in a pair of rubber legs on each side of the shank with figure-8 wraps, leaving them long to trim later.
Dub a slim thorax between and in front of the legs.
Pull the front of the foam strip forward over the thorax to form the head/wingcase and lock it down behind the eye.
Post a small orange foam tab upright for visibility, whip finish, cement the wraps and trim the legs and rear foam to length.