The Tetramorium bicarinatum is a polygynous ant species with a colony size of up to 50,000 workers. They have a fast development rate and are around 4.2-4.6mm in size for the queen and 3-4mm for the workers. They have a reddish-brown color with variations in shades. They feed on food insects like cockroaches and crickets, as well as syrup made from water and honey.