Yellow Vein Lancer (IMAGE) National University of Singapore Caption Yellow vein lancer (Pyroneura latoia) butterfly, a flower specialist that feeds on a single native flower species, feeding on flowers of the Leea indica plant. Credit Tea Yi Kai 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.