Argentine ants are in the order Hymenoptera and the family Formicidae. It is also light to dark brown in color, and it has six legs, like all other insects. The Argentine ants' antennae have twelve segments. The thorax joins the abdomen by a thin pedicel, a thin stalk. There is no smell if one ant is squashed alone, but if many are there is a musty, greasy smell.
Workers forage for food and chew it.
The food substance is given to the larvae. They digest and regurgitate it for the adults. This must happen because the adults have a very thin esophagus and cannot swallow large particles of food. The Argentine ant is one species among more than 175 known species of ants in California. Although Argentine ants seem no different from other ants, they are.