(Length: 1/4″- 1/2″) These large ants usually nest outdoors in stumps and logs in contact with the soil and in dead tree limbs and cavities. The Florida Carpenter Ant has a black abdomen and red head and thorax. They also can nest in homes in wood damaged by termites, fungi and moisture. They forage widely for food crumbs and insects as well as honeydew produced by sap-sucking insects which attack landscape plants. Although they don’t eat wood, the galleries they excavate can be quite extensive.