Insects are the largest group among animals and plants.India is a land of wide range of ecological, climatic and vertical distribution of insect fauna.In the elevated, colder and forested areas of the country, Insect fauna is much varied, coulorful and plenty. Over 60,000 thousand species of insects are recorded from India. This project is an effort to record data on forest ecosystem and to prepare current insect inventory for the study area. It also gives distribution and composition of the insect species in terms of community structure and diversity. This book presents the concepts, themes and ideas on biogeography, community ecology, taxic diversity, guild structure, richness and abundance and biotic interference. It depicts importance of insect diversity for conservation and management projects for sustainable use of the natural resources. This book will help the conservation biologist, economist, biodiversity managers and professionals for strategic planning of the biodiversity projects.