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Synopsis The present book contains short description, geographical distribution and note on habit and habitats of 119 species of Indian dragonflies (Odonata). It contains coloured photographs either taken from nature or in laboratory and coloured sketches of important features of the species along with black & white diagrams, keeping in mind the conditions of specimens after post mortem change in colours. Dragonflies are very primitive group of insects. Technically they are known as the order Odonata. Nearly 220 million years ago their ancestors appeared in the world along with the ancestors of roaches. In the present world about 7000 odd forms occur; India's contribution to that nearly 500 odds. They feed on insects sometimes larvae feed on earthworm. Birds, Lizards and Toads are predators. Dragonflies move near water bodies. They breed near water and lay eggs in water, whatever may be the amount of water available. Adults are terrestrial and larvae are aquatic.