Synopsis Biodiversity is helpful for sustainable development of a region or a country hence occupied the place in International agenda. Therefore, in the present book emphasis is given on morphological and taxonomical diversity in insects. The book contain 20 experiments related to morphology, taxonomy, classification and identification of insects. The aspects covered in the book refers to study of generalized insect, morphology of head, thorax and abdomen and their appendages. Types of eggs, larvae and pupae; classification, features of orders and families with suitable examples and sketches of insects. A very useful knowledge on insects is provided by effective manner in this book. Hence the book is useful guide to students and teachers in the field of entomology and environmental sciences.