Named the acrobat ant because of the way the worker ants carry their abdomens above the rest of the body as if they were performing a balancing act. Acrobat ants are slightly longer than 1/8th inch. They vary in color from yellowish brown to dark brown, and the heart-shaped abdomen is usually darker than the rest of the body. When acrobat ants nest indoors they are usually inside wood or cavities kept moist with water from leaks. As they excavate the large galleries used as nest sites, sawdust may be deposited near the nest area.