What is a Cow killer bug?

The "cow killer bug," scientifically known as the red velvet ant (Dasymutilla spp.), is a flightless wasp found primarily in the United States. Despite its name, it is not an actual ant but a member of the Mutillidae family. Its striking appearance features a bright red or orange body covered in dense, velvety hair. The female possesses a potent sting, which is said to be extremely painful, hence the nickname "cow killer."