The Physiology of Insecta, Second Edition, Volume III, is part of a multivolume treatise that brings together the known facts, the controversial material, and the many still unsolved and unsettled problems of insect physiology. Since the first edition of this multivolume treatise was published, there has been a notable expansion of scientific endeavor in each of the various aspects of insect physiology. The original three-volume work has now grown to a thoroughly revised six-volume treatise. The book contains seven chapters that focus on the impact of environmental factors on the physiology of insects. The first chapter discusses insect behavior, including habitat selection, reproduction, orientation in space and time, motivation, and learning. This is followed by separate chapters on social life and mutual communication, insect pheromones, migration, mechanisms of locomotion in land and in water, and the physiology of flight.