Gall Cross-Section (IMAGE) University of Toledo Caption Insects have set up house in phylloxera galls on this leaf. This cross-section of a gall taken with a stereosmicroscope shows an insect mom -- the orange ball in the center -- surrounded by eggs she laid -- the surrounding yellow ovals. Credit Dr. Melanie Body, The University of Toledo 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.