This book provides an in‎-depth review and analysis of the biology of adults and larvae of the Family Oestridae ‎(‎commonly known as botflies‎,‎ or warble flies‎)‎‎.‎ Oestrid flies cause myiasis ‎(‎invasion of living tissue by the larvae‎)‎‎,‎ and are a major pest of both domestic and wild animals worldwide‎.‎ The book presents a comparative investigation of the life histories and adaptation to parasitism exhibited by this unique family of flies‎.‎ It also gives a detailed survey of each genus and provides a synopsis of the taxonomy of the family‎.‎ It contains chapters on morphology‎,‎ life history‎,‎ host‎-parasite relationships‎,‎ taxonomy and behaviour‎.‎