Medium sized ants with a dark red/brown coloring. These ants can be mistaken for Acrobats ants, however, Carpenter ants have a circular abdomen that cannot fold over the thorax. These ants love to live in walls, as well, mainly around windowsills and doorframes. A tell-tale sign for these ants is finding their “trash” piles, or deposits of torn up insulation, wood, drywall that they are removing from the walls. These guys can do just as much damage as termites!