Male Diachasma Alloeum on an Apple (image) University of California - Davis Share Print E-Mail Caption This is male Diachasma alloeum on an apple. The wasp is undergoing evolutionary change. Credit Photo by Andrew Forbes Usage Restrictions Photo by Andrew Forbes Share Print E-Mail 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.