Carebara diversa

Lives mainly on the floor of primary forest. The species name diversa means "diverse", a reference to the many worker forms and the huge size differences between them. The queen is among the largest ants in Taiwan at over 20 mm, while minor workers are only 3 mm. Majors and the queen move about with many minor workers riding on their bodies, like aircraft carriers or tanks; these riders protect and tend them. Carebara diversa can be called the Asian army ant because it behaves much like one: a main column flows out of the main nest and splits into fine branches to extend the colony's reach, and when the tip of a branch finds prey, the ants recruit back along it and swarm the prey, biting it to death before carrying it home. They also frequently move nest sites, whether to forage or to escape parasites, and during a move you can see many guests such as ant crickets and scale insects marching along with them.