Many species of ants either live inside of homes and other buildings, or invade them from outdoors in search of food. House-infesting ants include the tiny, brownish-yellow Pharaoh ants; plus larger Cornfield ants, Odorous House ants; Pavement ants; and many other species.
Pavement ants are tiny, brown to black ants. They have an unevenly-shaped thorax and two nodes, or bumps, between the thorax and the abdomen. They are often active in homes and other buildings during the winter months. Normally, they are found in slab-on-grade dwellings, such as townhomes; or in the basement of houses. This is because they are soil dwellers, and survive the winter beneath the concrete slabs of heated buildings. They may be seen in winter, foraging for sweets, fats, and proteins.
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