A Gypsy Moth Caterpillar (2 of 3) (IMAGE) Penn State Caption Gypsy moths have a diurnal pattern where they climb out onto leaves to feed at night, and return to bark crevices or the soil during the day to hide from predators. Credit James McNeil Usage Restrictions Non advertising use 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.