Mutillidae, or velvet ants, are a family of wasps whose wingless females resemble ants, though only distantly related. The "velvet ant" name refers to their hair, which may be red, black, white, silvery or golden. In some places a few species are also known as cow killers or cow ants. Their integument's very tough and roughly textured, providing protection against the stings of the wasps and bees whose nests they invade. As in other related families in the Vespoidea, the males have wings, but f… (More on Mutillidae)