Beneficial Beetle (IMAGE) University of Würzburg Caption The ground beetle copper greenclock (Poecilus cupreus) is a beneficial insect frequently encountered in agricultural landscapes. Credit (Photo: Fabian Boetzl) 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.