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Chrysomya megacephala (Fabricius,1794) occurs on every continent and is closely associated with carrion and decaying material in human environments.Its abilities to find dead bodies and carry pathogens give it a prominence in human affairs that may involve prosecution or litigation,and therefore forensic entomologists.The identification,geographical distribution and biology of the species are reviewed to provide a background for approaches that four branches of forensic entomology (urban,stored-product,medico-criminal and environmental) might take to investigations involving this fly.