Tetramorium bicarinatum, commonly known as the bicarinate ant, is a species of small ant belonging to the genus Tetramorium. It is characterized by its reddish-brown coloration and the presence of two distinct carinae or ridges on its mesosoma. These ants are typically found in tropical and subtropical regions, nesting in soil or under rocks. They are known to be highly adaptable and can establish colonies in various habitats, including urban areas.