pavement ant

Short definition from Wiktionary

Noun

1. 1
   An ant of a species that often nests under pavement or rocks: Any ant of genus Tetramorium, principally of the Old World.
2. 2
   Any ant of genus Tetramorium, principally of the Old World: especially, a red pavement ant (Tetramorium caespitum), of western Eurasia.
3. 3
   An ant of a species that often nests under pavement or rocks: A yellow meadow ant (Lasius flavus), of western Eurasia.