This is the first comprehensive account of the Biology of the Vespine Wasps, with special emphasis on behavioral aspects. The authors, well-known specialists in insect sociology and wasp systematics, cover wasps from all over the world. Asiatic hornets, a special and almost unknown group of insects due to their extreme aggressiveness, are described in detail. Many new and interesting findings are presented, concerning for example the mass-attack by the Japanese giant hornet on other social wasps. Topics include: nesting habits, brood incubation by the foundress, nest relocation by some hornets; life cycle strategies; population dynamics; life in extreme environments; parasitism; phylogeny; natural enemies; the significance of vespine wasps as pests.