Parallel Genatalia Evolution (IMAGE) Indiana University Caption Drawing, top left, shows side view of abdomen of female without a male copulatory organ inserted, and at right, with inserted organ. Structure labeled Par is the male paramere; Pyg is the female pygidium. Bottom photos, left, show copulatory organ of male Onthophagus taurus and O. illyricus and, right, underside of female pygidium of each species. Credit Indiana University Department of Biology 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.