Neivamyrmex army ants prey primarily on the brood of other ant species, but they will also take adult ants. Here army ants make short work of a Lasius foundress queen they encountered in a subterranean raid. (Neivamyrmex nigrescens). Portal, Arizona, USA

A queen Neivamyrmex opacithorax army ant surrounded by her much smaller worker offspring. Chiricahua Mountains, Arizona, USA

Neivamyrmex opacithorax. Army ants carrying brood. Notice how the ants carry their pupae, slung under their bellies in typical army-ant style. Chiricahua Mountains, Arizona, USA