The Black Garden Ant workers are 4-6 mm long, wingless and black or dark brown. They are usually found in large numbers, either around their nests in the soil or following each other along their scent trails across the ground and paved areas, over walls and into buildings.
Does Black Garden Ants bite? These ants rarely bite humans, and their bites aren’t harmful. You may feel a burning sensation after a bite, but it should go away after a short time.