What are odorous house ants?
Odorous house ants are a very small species of ant that have the ability to produce a very big smell. Adults grow to between 1/16th and 1/8th of an inch in length and range in color from dark brown to black. Like other species of ants, odorous house ants have six legs and an oval, segmented body. When you look closely at this species of ant from their side, you can see that their thorax is unevenly shaped.
Why do I have them?
Odorous house ants are often found living outside, nesting in areas of exposed soil or underneath piles of firewood or other organic debris. When outside, they prefer to feed on honeydew (a substance produced by aphids and mealy bugs). These ants may find their way inside accidentally while foraging for food sources, or they may enter homes and other buildings purposely if the ground they are living in becomes too saturated with water after heavy rains. Once inside, they will nest in warm, moist areas including behind walls that are near hot water pipes or hot water heaters and in laundry rooms.