Semen from wild-type male Aedes aegypti. (IMAGE) Proceedings of the National Academy of Sciences Caption Semen from wild-type male Aedes aegypti. Credit Image credit: Jieyan Chen and Craig Montell. 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.