Pavement Ant

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Introduction: This ant gets its name from commonly locating its nest in or under cracks in pavement. Pavement ants were introduced from Europe by the early colonists. They are found in most of the eastern half of the United States and in California and Washington.

Recognition: Workers monomorphic about 1/16"-1/8" (2.5-4 mm) long queens about 3/8" (8 mm) long. Body light brown to black paler legs and antennae. Head and thorax furrowed/grooved with parallel lines. Antenna 12-segmented with 3-segmented club. Thorax with pair of small spines on upper back part profile unevenly rounded. Pedicel 2-segmented. Stinger present.

Habits: inside pavement ants will occasionally nest in walls in insulation and under floors. The most likely place is in ground-level masonry walls of the foundation and especially near some heat source in the winter. They often follow pipes which come through slabs for access to upper floors of buildings.

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