What is a characteristic of one node ants?

One node ants are defined by their distinct morphological trait of having a single petiole node that connects the thorax and abdomen. This configuration is characteristic of many ant species that are classified within the subfamily Formicinae. A notable aspect of these ants is that most of them lack a functional sting, which differentiates them from other ant types, such as two node ants, which possess stingers. This absence of a sting is an evolutionary trait that is sometimes associated with their behavior, as they often rely on biting or employ formic acid as a defense mechanism rather than the more aggressive sting seen in other ant genera.

Understanding this characteristic helps to identify one node ants accurately within the diverse world of ant species, emphasizing their unique adaptations and behaviors in contrast to those of other ant groups.