Juvenile Psyllid Insect (IMAGE) University of Arizona Caption The bright yellow structure inside this newly hatched psyllid insect is the bacteriome, the special structure that houses endosymbiotic bacteria. Credit Nancy Moran, The University of Arizona. Usage Restrictions Photo must be used only in connection with a story about the research described in this release. Photo credit must be given as: Nancy Moran, The University of Arizona. 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.