A Rearing Method Using Plastic Tubes (IMAGE) National Institutes of Natural Sciences Caption Late larval stage (left) , prepupal stage (center) and pupal stage (right). Credit NIBB 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.