CONTENTS:  1. Introduction; 2. Characters and Brief Classification; 3. Class 1. Crustacea (Contd.) Example : Palaemon (= Macrobrachium) malcolmsonii (Indian Freshwater Prawn); 4. Class 1. Crustacea; 5. Larval Forms of Crustacea; 6. Parasitism in Crustacea; 7. Economic Importance of Crustacea; 8. Prawn Fishery in India; 9. The Trilobita; 10. Class 2. Merostomata Example : Limulus (The Horseshoe Crab); 11. Class 3. Arachnida (Contd.) Example : Scorpion; 12. Class 3. Arachnida; 13. Doubtful Arthropods; 14. Myriapodous Arthropods; 15. Subphylum Onycophora Example 1. Peripatus; 16. Class 5. Insecta (Contd.) Example 1. Periplaneta americana (The Common Cockroach); 17. Class 5. Insecta (Contd.) Example 2. Grasshopper or Locust; 18. Class 5. Insecta (Contd.) Example 3. Culex and Anopheles (The Mosquitoes) Comparison of different mosquitoes Economic importance of mosquitoes Mosquito control; 19. Class 5. Insecta (Contd.) Example 4. Musca domestica (The Housefly); 20. Class 5. Insecta (Contd.) Example 5. Apis (The Honeybee); 21. Class 5. Insecta (Contd.) Example 6. The Ants; 22. Class 5. Insecta (Contd.) Example 7. The Termites (White Ants); 23. Class 5 Insecta (Contd.) Example 8. Bombyx mori (The Silkmoth); 24. Class 5. Insecta (Contd.) Example 9. Cimex lactularius (The Bedbug); 25. Class 5. Insecta; 26. Mouthparts of Insects; 27. Respiration in Insects; 28. Metamorphosis in Insects; 29. Social Life in Insects; 30. Economic Importance of Insects; 31. Insect Control (Insecticides) 32. Phylogeny of Arthropoda : Origin and Evolution; Important Questions; Bibilography; Index.