The Green Trap (IMAGE) Max Planck Institute for Chemical Ecology Caption These are vinegar flies trapped in the calyx of the lily Arum palaestinum. Credit Johannes Stökl, <i>Curr. Biol</i>., Oct. 7, 2010 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.