These insects are about 3/4 inch long and are usually black and red. They have a fuzzy body and look like a large ant.

Family Mutilidae. These are actually wasps, but appear to be ants. They are parasites in the nests of ground-nesting wasps such as yellowjackets and sometimes solitary bees. They can be somewhat aggressive and can sting if handled.

They don't infest houses and are not a threat to people or pets, so there is not need for extensive control measures. Individuals can be controlled with an aerosol spray.