Tettigades Cicada (image) Canadian Institute for Advanced Research Caption This is a cicada of the genus Tettigades, which are common to South America. Researchers found that one of its bacterial symbionts had split into two species. Credit Photo by Juan Emilio Cucumides Carreño Usage Restrictions For use in stories directly related to this research with credit to the photographer. 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.