Pavement ants feed on a variety of materials, including live and dead insects, honeydew from aphids, meats, grease, etc. They often enter houses looking for food. They may become numerous in a short period of time in a kitchen or outside on a patio.
Outside they are usually found under stones, concrete slabs, and at the edge of pavements. Inside of a house they can be found anywhere in the structure.
New ant colonies are started by a single queen that lays the eggs and tends the brood that develops into worker ants. Tending of the brood is then taken over by the workers, which shift the brood from place to place as moisture and temperature fluctuate in the nest. When workers forage for food for the queen and her young, they often enter houses and become a nuisance.
They feed on animal food, grease, seeds, and almost anything considered edible by humans.