Nectar Straw Was Game-Changer (image) Florida Museum of Natural History Share Print E-Mail Caption The development of the proboscis, a coiled straw-like mouthpart that can suck up nectar and other fluids, helped boost the diversity of Lepidoptera. Here, a tiger longwing, Heliconius hecale, drinks from a flower. Credit Eric Zamora/Florida Museum Usage Restrictions Please credit Eric Zamora/Florida Museum Share Print E-Mail 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.