There’s a species of ant that will sit humbly before an anthill. Begging for small gifts. When an ant steps out to hand over just such a gift, the apparently supplicant one—in reality, willing to conquer—tears off its head. The heads of foreign ants are its food. In zoology, it is called FORMICA DECAPITANS, the ant which decapitates.
RUSSIA CONTAINER, Alexander Kluge