Mutillidae are a family of wasps whose wingless females resemble ants. Their common name velvet ant refers to their dense hair which may be red, black, white, silver, or gold. They are known for their extremely painful sting, facetiously said to be strong enough to kill a cow, hence the common name cow killer or cow ant is applied to some species. The earliest-known velvet ants are specimens from the Dominican Republic preserved in amber some 25 to 40 million years ago. Description They invade… (More on Mutillidae)