What type of ants have one node and do not sting?

Argentine ants are characterized by having one node, which is a small segment that distinguishes their waist structure, and they do not sting. This makes them quite different from other ant species, particularly those that can pose a more aggressive threat, like fire ants, which are known for their painful stings. Carpenter ants and leafcutter ants, while also important to know, have different characteristics; carpenter ants have a smoother, more rounded thorax and can also be more aggressive, whereas leafcutter ants are known for their unique behavior of cutting leaves to cultivate fungus. Understanding the distinctive traits of Argentine ants helps in identifying and managing pest issues effectively, as they are often found in large colonies and can invade structures if not controlled.