Start with 2-3 mm dense black foam.
Cut into squares abut 1" long.
Cut in midline 1/2 of thickness almost the entire length (but not all the way).
Black thread wrap entire length and coat with glue for body adherence.
Attach body over glue with black thread wrap in the midline.
Two rubber legs on each side of body. Length your decision, but remember, ants do NOT have long legs.
Cut Antron wing to desired length. Like it about the length of the hackle fibers.