Tetramorium immigrans, recently distinguished from its European counterpart, Tetramorium caespitum/Sp.E, has been a prevalent invasive presence in the United States for centuries. Unlike the notoroius Red Imported Fire Ant, Pavement Ants are less aggressive to humans and not quite as destructive.
Minor Worker Size: 3.5 - 4 mm
Queen Size: 9 - 10 mm
Species Tribe: Crematogastrini
Coloration/Hue: Dark Brown to Black
Nuptial Flight (TOY): Late May - June
Nuptial Flight (TOD): Early Morning