What are the swollen segments found at the connection between the thorax and abdomen of ants called?

The swollen segments found at the connection between the thorax and abdomen of ants are referred to as "nodes." These nodes are crucial anatomical features, especially in recognizing and classifying different ant species. They serve as a junction point and can vary in size and shape, which helps entomologists and enthusiasts identify specific types of ants.

Other terms listed, such as "abdomen" and "thorax," refer to larger body segments of the ant and do not specifically describe the connection point. Similarly, "claspers," which are structures in some other insect groups, are not relevant in taxonomy or anatomy when discussing ants. Thus, the term "nodes" accurately describes the unique swollen connectors observed in these insects.