Dasymutilla occidentalis Dasymutilla occidentalis Dasymutilla occidentalis (red velvet ant or eastern velvet ant), is a species of parasitoid wasp native to the eastern United States. It is commonly mistaken for a member of the true ant family, as the female is wingless. The species ranges from Connecticut to Missouri in the north and Florida to Texas in the south. Other common names include cow ant and cow killer. The eastern velvet ant is the largest of the velvet ant species in the United States, attaining an approximate length of 0.75 in (1.9 cm). Adults display aposematic coloration, consisting of black overall coloring
Mutillidae velvet ants would immediately sting the lizards. This sting resulted in the dropping of the ants in both cases and avoidance for the remainder of the trial. The side-blotched lizard was found dead in its tank 24 hours later. The side-blotched lizard is a natural predator to the velvet ant, while the whiptail is not. The aposematic red and black coloration of the velvet ant corresponds to a specific Müllerian mimicry ring consisting of dozens of species. This offers the velvet ant protection because many of its predators have learned to avoid prey with this same coloration. The velvet ant,