The body color of the worker ant is dark brown to blackish brown. It is very slender, and the legs are extremely long.
Nests indoors often are built in wall voids. Outdoor nests are around buildings and sites such as trash cans and refuse Dumpsters. They occur on the ground and upper floors of commercial buildings and hospitals. The long legs of these ants make their walking seem unorganized, which is the origin of their name: crazy ants.