Workers of the Rough Harvester Ant (IMAGE) Earlham College Caption This image shows workers of the rough harvester ant, Pogonomyrmex rugosus, one of the host species used by the social parasites, and one of the genomes sequenced as part of the study. Credit Chris R. Smith, used with permission Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.