(Tetramorium caespitum) These ants are common in the yard, garden and around foundations. They feed on a variety of plant and animal material. They forage primarily during the day. Nests between the block walls and the sill plate of houses often contain parts of insects and wood shavings.
The best control strategy is to locate and treat the outdoor nests with liquid insecticide, and to use bait for the indoor nests. Colonies that are foraging indoors will usually be located close to the house foundation.