Utility of Insects for Studying Human Pathogens and Evaluating New Antimicrobial Agents, by Yan Wang, De-Dong Li, Yuan-Ying Jiang and Eleftherios Mylonakis. Galleria Mellonella as a Model Host to Study Gut Microbe Homeostasis and Brain Infection by the Human Pathogen Listeria Monocytogenes, by Krishnendu Mukherjee, Ramya Raju, Rainer Fischer and Andreas Vilcinskas. Drosophila as a Model to Study Metabolic Disorders, by Julia Hoffmann, Renja Romey, Christine Fink and Thomas Roeder. The Fruit Fly Drosophila melanogaster as a Model for Aging Research, by Annely Brandt and Andreas Vilcinskas. Drosophila and the Hallmarks of Cancer, by Theodoulakis Christofi and Yiorgos Apidianakis. The red flour beetle Tribolium castaneum as a model to monitor food safety and functionality, by Stefanie Grünwald, Iris V. Adam, Ana-Maria Gurmai, Ludmila Bauer, Michael Boll, and Uwe Wenzel. Identification and Bioanalysis of Natural Products from Insect Symbionts and Pathogens, by Alexander O. Brachmann and Helge B. Bode. Antiparasitic Peptides, by Jette Pretzel, Franziska Mohring, Stefan Rahlfs and Katja Becker.