Little Black ants are very small and black, two nodes, with workers all one size, similar to the Pharaoh Ant. Found throughout the U.S., but most often in the east. One of the more common house-infesting ants, Little Black Ants nest in wall voids and under carpets. May build outdoor colonies under rocks, logs, debris and forage to indoor food sources along baseboards and carpet edges. Likes sweets, fats, oils.