Its scientific name is Papilio Antimachus and this particular butterfly has a wingspan of 8 to 9 inches and it comes from Uganda. It is the largest butterfly in Africa and has no natural enemies as it is very toxic. The males are larger than the females, which have less elongated forewings and tend to show themselves less. The wings are long brown and orange, with black markings.Like other members of the Papilionidae family the Antimachus Swallowtail or African giant swallowtail has well developed legs. The Antimachus carries enough poison to kill six full grown cats.