Philanthus triangulum (IMAGE) Max Planck Institute for Chemical Ecology Caption The European beewolf Philanthus triangulum. Credit Martin Kaltenpoth, Max Planck Institute for Chemical Ecology 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.