The book has been composed in a clear and concise manner, with the intention of being accessible to students of all grade levels. It comprises 19 chapters, each of which delivers comprehensive information about the subject matter, and is supplemented by illustrations that complement the text. Consequently, this book is an essential read for any student.

P.K. Sehgal (b-1980) completed his M.Sc Zoology/Entomology in 2004 and done Ph.D Zoology/Entomology in 2008. He has 18 instant notes and 13 books, 19 Research Papers to his credit. At Presently he is working as Assistant Professor in the Department of Zoology/Entomology at Dolphin (P.G.) Institute of Biomedical and Natural Sciences, Dehradun, Uttarakhand, India. The books run like wild fair from city to city, state to state and crossed the frontier of the country. This book is helpfull for B.Sc Agricultural student for fundamental knowledge of Entomology. Several books for undergraduate and postgraduate students and competitive examination of state and National level followed in quick succession. The Language is simple, explanation are clear and presentation is very systematic.

1. Body Segmentation of Grasshopper, 2. The Division of Insect Integument, 3. Insect Origin and Evolution, 4. Digestive System of Insect, 5. Circulatory System of Insect, 6. Excretory System of Insect, 7. Reproductive System of Insect, 8. Respiratory System of Grasshoppers, 9. Introductory Nervous System of Insect,10. Exocrine and Endocrine Glands of Insect, 11. General Ecology of Insect, 12. Insect Collection, Preservation and Insect Control Methods, 13. Important Insect Orders and Classification, 14.  Insecticide Application Equipment, 15. The Post Embryonic Development of Insects, 16.Locusts: Life History and Control, 17. Insect Pheromones and Hormones of any Insect, 18. All Insect Pests of Agricultural Crops, 19. Sericulture, Lac Culture and Apiculture, Selected References