Formica archboldi
Formica archboldi is a species of ant in the family Formicidae. They are known for their abnormal behavior, which includes the collection and storage of "Odontomachus" (trap-jaw) ant skulls. "Formica archboldi" ants store these severed ant heads in their nests. The "Formica archboldi" have odors that are chemically similar to the odors of the trap-jaw ants, which might allow the "Formica" ants to disguise themselves among the trap-jaw ants. The "Formica" ants immobilize the trap-jaw ants by spraying formic acid, draging them into the nest, and dismembering them.