Glasswing butterfly (IMAGE) Florida Museum of Natural History Caption Glasswing butterflies have transparent wings allow them to fade into the green and gloomy mosaic of leaves and shifting light near the forest floor. Credit Florida Museum of Natural History photo by Eric Zamora Usage Restrictions Credit must be given to the creator. License CC BY 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.