chapter 1 Diversity of prokaryote–insect associations within the Sternorrhyncha (psyllids, whiteflies, aphids, mealybugs) / chapter An alpha-proteobacterium invades the mitochondria of the tick Ixodes ricinus / chapter Inherited Bacteroidetes symbionts in arthropods / chapter 4 Complexity of insect–fungal associations: exploring the influence of microorganisms on attine the ant–fungus symbiosis / chapter 5 The evolutionary origin and maintenance of the mutualistic symbiosis between termites and fungi / chapter 6 Mollicutes associated with arthropods and plants / chapter 7 A newly discovered virus manipulates superparasitism behavior in a parasitoid wasp / chapter 8 Symbiont culture / chapter Comparative genomics in Buchnera aphidicola, primary endosymbiont of aphids / chapter Wolbachia genomics: accelerating our understanding of a pervasive symbiosis / chapter The role of Wolbachia in the biology and pathogenesis of filariasis / chapter 12 Paternal sex ratio chromosomes in parasitoid wasps: an overview of the ins and outs of these extremely selfish B chromosomes / chapter 13 Insecticidal bacterial effectors from symbionts of insect-killing nematodes / chapter Insect pest control using Wolbachia and/or radiation / chapter 15 Paratransgenesis applied to control insect-transmitted plant pathogens: the Pierce’s disease case