From the rain forests of Borneo to the tenements of Manhattan, winged insects are a conspicuous and abundant feature of life on earth. Here, Robert Dudley presents the first comprehensive explanation of how insects fly. The author relates the biomechanics of flight to insect ecology and evolution in a major new work of synthesis. The book begins with an overview of insect flight biomechanics. Dudley explains insect morphology, wing motions, aerodynamics, flight energetics and flight metabolism within a modern phylogenetic setting. Drawing on biomechanical principles, he describes and evaluates flight behaviour and the limits to flight performance. The author then takes the next step by developing evolutionary explanations of insect flight. He analyzes the origins of flight in insects, the roles of natural and sexual selection in determining how insects fly and the relationship between flight and insect size, pollination, predation, dispersal and migration. Dudley ranges widely - from basic aerodynamics to muscle physiology and swarming behaviour - but his focus is the explanation of functional design from evolutionary and ecological perspectives. The importance of flight in the liv