Large Caterpillar (image) Smithsonian Caption A youngster holds a Hercules moth caterpillar -- one of 500 species of caterpillars, ambrosia beetles and fruit flies studied by Smithsonian scientists in Papua New Guinea. Credit Milan Janda Usage Restrictions Please include photo credit when using: Milan Janda. 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.