Sugar ants are the most common in residential property.

These ants can be found in a huge diversity of habitats, including within houses. They forage mainly for honeydew, which is produced by aphids and scale insects that are guarded and tended by the ants, as well as floral nectar and other sugary foods. They are common household pests and are attracted to sources of water and sweets.

As with most other ants, T. sessile is eusocial. This is characterized by reproductive division of labor, cooperative care of the young, and overlapping generations.

These insects usually find their way in voids cracks windows and under doorways.