<i>Nessorhinus gracilis</i>, a treehopper (IMAGE) Proceedings of the National Academy of Sciences Caption This is a Nessorhinus gracilis, a treehopper. Credit Image courtesy of Christopher H. Dietrich. 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.