This unique work is the first reference that provides detailed descriptions of the fully developed larvae of the Odonata suborder Anisoptera, including keys to families and genera, high resolution photographs, distribution maps, and an up-dated list of the dragonfly species from Thailand. Also, because the adults are so well known in this country, this book will provide completion to our understanding of the life cycle of an entire fauna. Through the six chapters of this book, the reader will find an introduction with generalities of the order Odonata, a description of the morphology of a dragonfly larva with emphasis in the structures used in the keys, a brief description of Thailand’s geography, relief, hydrology, climate, precipitation, agriculture, history, and faunal studies, and detailed descriptions of each of the 82 genera of Anisoptera of Thailand whose larvae are known. This book will have broad appeal in the large community of odonatists around the world and for the aquaticentomologists, ecologists, and conservationists interested in the Southeast Asian fauna in general.