No, not polytheism. Polyethism. See the study:
“Polyethism in a colony of artificial ants“, Chris Marriott, Carlos Gershenson, arXiv:1104.3152v1, April 15, 2011. The authors are at IIMAS, Universidad Nacional Autonoma de Mexico, Mexico City, Mexico.
(Thanks to investigator Ralph Egan for bringing this to our attention.)