Dracula Ants of the genusAdetomyrma are rare and primitive ants endemic to the island of Madagascar.
This behaviour is thought to represent a precursor to the social feeding behaviour typical of more derived antspecies, which use their larvae to digest their food (with the larvae later regurgitating it for the adultsâwhich are unable to digest their own foodâto eat).
This single joint may indicate the Dracula Ant to be an evolutionary "missing link" between ants and wasps which have similar abdomens.