Image 2 (IMAGE) Florida Museum of Natural History Caption Large io moths were once common throughout eastern North America but have since declined in number due in part to urbanization. Credit Andrei Sourakov 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.