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Pavement Ants

Pavement Ant

Pavement ants get their name because the often nest under sidewalks, driveways, and building foundations. During the winter, pavement ants may nest inside structures near a heat source. A mound of displaced soil near a paved area is probably a sign of pavement ants. Very often they build their nests along sides of garages and houses, and parts of houses which are constructed on concrete slabs. They may enter homes and businesses through small openings windows and doors, basement walls, or concrete floors. During the winter months, they can be found indoors as they are forced to look for food and water.


  • Pale brown to black in colour with lighter legs
  • Workers are 2.5 to 3 millimetres, queens are approximately 6 millimetres
  • Three-segmented club on each antenna
  • Head and thorax have visible grooves.
  • A single pair of spines on the thorax
  • Two segments (nodes) between the thorax and abdomen

image of pavement ant

More Images of Pavement Ants


Why should I be concerned?

Pavement ants are one of the most commonly sighted pests in North America. By taking shelter under hard surfaces, they can return every year, season after season. Contamination of human and pet foods is the primary concern. as ants can carry germs and disease.

Habitat and Behaviour

A day in the life of pavement ants

Pavement ants are trailing ants and feed on a variety of foods, including dead insects, greasy foods, seeds, and sweets. They may forage as much as 9 meters from their nest.

The reproductive queens and drones have wings. They are commonly seen in the late spring and early summer months on their nuptial flights, both drones and new queens looking for mates.

Rival colonies can often be spotted amidst long battles along sidewalks, driveways, and other open areas as they each attempt to expand or defend their territories.

Tips for prevention and control

These tips may help you prevent pavement ants in your home:

  • Seal openings around doors, windows and the foundation
  • Overhanging trees should be pruned or trimmed so that they are not in contact with the structure
  • Keep food preparation areas and floors clear of crumbs
  • Make sure your trash cans have tight-fitting lids

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