Which type of ant is characterized by having one node?

The type of ant characterized by having one node is the fire ant. Fire ants typically have a single node between their thorax and abdomen, which is a key identification feature. This feature distinguishes them from many other ant species that may have two nodes or other structural differences.

Carpenter ants, while significant in pest control context, actually have two nodes. They are commonly recognized for their wood-destroying habits but do not possess the one-node structure that is specific to fire ants. Understanding the anatomical features of different ant species is crucial for pest identification and management plans, as it allows for proper treatment and control methods to be implemented effectively.

Leafcutter ants also have a distinct appearance and behavior related to their role in the ecosystem but do not meet the criteria for having a single node. Similarly, Argentine ants, known for their aggressive foraging behavior and colonies, also exhibit a two-node structure. Recognizing these differences is essential for effective identification and distinguishing among ant species.