ence that find policing in singly mated species; examples of species with single mating and worker policing are Vespa crobro (Foster et al.. 2002), Camponotusjlortdanus (Endler et al., 2004), Aphaenogaster smythiesi (Wenseleers and Ratnieks, 200bh). and DitIC0MM0 (Wenseleers and Ratnieks, 20061), Interspecies comp