Diversity of Prokaryote–Insect Associations within the Sternorrhyncha (psyllids, whiteflies, aphids, mealybugs), P. Baumann An Alpha-Proteobacterium Invades the Mitochondria of the Tick Ixodes ricinus, N. Lo, T. Beninati, L. Sacchi, and C. Bandi Inherited Bacteroidetes Symbionts in Arthropods, M.S. Hunter and E. Zchori-Fein Complexity of Insect–Fungal Associations: Exploring the Influence of Microorganisms on Attine Ant–Fungus Symbiosis, M. Poulsen and C.R. Currie The Evolutionary Origin and Maintenance of the Mutualistic Symbiosis Between Termites and Fungi, D.K. Aamen and K.K. Boomsma Mollicutes Associated with Arthropods and Plants, E.-D. Ammar and S.A. Hogenhout A Newly Discovered Virus Manipulates Superparasitism Behavior in a Parasitoid Wasp, J. Varaldi, S. Gandon, A. Rivero, S. Patot, and F. Fleury Symbiont Culture, A.C. Darby and S.C. Welburn Comparative Genomics in Buchnera aphidicola, Primary Endosymbiont of Aphids, A. Latorre and A. Moya Wolbachia Genomics: Accelerating Our Understanding of a Pervasive Symbiosis, J.C. Brownlie and S.L. O’Neill The Role of Wolbachia in the Biology and Pathogenesis of Filari, J.D. Turner, J.M. Foster, M. Ganatra, B.E. Slatk, and M.J. Taylor Paternal Sex Ratio Chromosomes in Parasitoid Wasps: An Overview of the Ins and Outs of These Extremely Selfish B chromosomes, J.J.F.A. van Vugt, H. de Jong, and R. Stouthamer Insecticidal Bacterial Effectors from Symbionts of Insect-Killing Nematodes, R.H. ffrench-Constant, A. Dowling, and N. Waterfield Insect Pest Control Using Wolbachia and/or Radiation, K. Bourtzis and A.S. Robinson Paratransgenesis Applied to Control Insect-Transmitted Plant Pathogens: The Pierce’s Disease Case , T. Miller, C. Lauzon, D. Lampe, R. Durvasula, and S. Matthews Index