Pharaoh

Its name resulted from the mistaken belief of Linnaeus that this ant was one of the plagues of Egypt in the time of the Pharaohs. Pharaoh ants are thought to be native to the African region. This ant is found throughout the United States. Pharaoh ants have been strongly implicated in the spread of various disease pathogens.

Recognition.

Worker monomorphic, about 1/16" long. Body usually pale varying from yellowish to reddish, with abdomen often darker to blackish. Antenna 12-segmented, with 3-segmented club. Thorax lacks spines, profile unevenly rounded, wings, and slightly darker in color than worker. Males about 1/16", winged. Black in color, and antenna straight, not elbowed.

Habits.

Inside, Pharaoh ants nest in warm humid areas near sources of food and/or water. Nests are usually located in inaccessible areas such as wall voids, behind baseboards, in furniture, under floors, and between linens. The workers range widely from the nest in search of food and water, and establish trails to food and water sources. They commonly use electrical and telephone wires as a highway system to travel through walls and between floors. Pharaoh ants are common problems in commercial food handling establishments such as hotels, grocery stores, hospitals, and in apartment complexes.

Outside, these ants seem to be of little importance today. In the temperate northern areas of the United States, they usually cannot survive outdoors year round; the senior author has observed outdoor over wintering colonies as far north as Raleigh, NC .However, in the subtropical areas such as Florida and Hawaii, it can survive year round outdoors.