Body Cactus chenille / Fritz, orange or matching (as needed)
Rib (optional) Fine wire or Krystal Flash (1 strand)
How to tie it
Tie in a pair of foam booby eyes at the front of the shank, figure-eighting them securely; whip a little cement in so they can't spin. Why: the buoyant foam eyes float the fly up off the bottom for the classic booby buoyancy.
Run the thread to the bend and tie in a generous marabou tail about one shank length.
Tie in the cactus chenille (or Fritz) and wrap a full flashy body forward to just behind the eyes.
Figure-eight around and behind the eyes to fill, then whip finish behind the eyes and cement.