Abbreviations. Introduction. Tribe Aphidini. Systematic list. Genus I Aphis Linnaeus: 1. Aphis achyranthi Theobold. 2. Aphis affinis del Guercio. 3. Aphis clematidis simlaensis Kumar and Burkhardt. 4. Aphis craccivora Koch. 5. A. Eugeniae V.d. Goot. 6. Aphis euphorbiae Kaltenbach. 7. Aphis fabe scopoli complex. 8. Aphis farinosa Gmelin. 9. Aphis glycines Matsumura. 10. Aphis gossypii glover. 11. Aphis Kurosawai Takahashi. 12. Aphis longisetosa A.N. Basu. 13. Aphis nasturtii Kaltenbach. 14. Aphis A. Nerii B.d.F. 15. Aphis paraverbasci Chakrabarti. 16. Aphis Pollinosa Walker. 17. Aphis polygonacea Matsumura. 18. Aphis pomi de Geer. 19. Aphis punicae Passerini. 20. Aphis rajii (Kumar E' Burkhardt). 21. Aphis rhamnifila David, Narayanan and Rajasingh. 22. Aphis rhoicola Hille Ris Lambers. 23. Aphis rubifolii (Thomas). 24. Aphis Rumicis Linnaeus. 25. Aphis spiraecola Patch. 26. Aphis verbasci schrank. 27. Aphis (protaphis) carthami (Das). Genus 2. Brachyunguis B. Das. 28. Brachyunguis calotropicus Menon and Pawar. Genus 3. Casimira Eastop: 29. Casimira blutanensis A.K. Ghosh et al. Genus 4. Cryptosiphum Buckton: 30. Cryptosiphum artemisiae Buckton. Genus 5. Toxoptera Koch: 31. Toxoptera aurantii (B.D.F.). 32. Toxoptera citricidus (Kirkaldy). 33. T. Odinae (van der Goot). Genus 6. Hyalopterus Koch: 34. Hyalopterus pruni (Geoffroy). Genus 7. Hysteroneura Davis: 35. Hysteroneura setariae (Thomas). Genus 8. Melanaphis van der Goot: 36. Melanaphis arundinariae (Takahashi). 37. Melanaphis bambusae (Fullaway). 38. Melanaphis donacis (Passerini). 39. Melanaphis meghalayensis meghalayensis Raychaudhuri and Banerjee. 40. Melanaphis meghalayensis bengalensis Raychaudhuri and Banerjee. 41. Melanaphis pahanensis (Takahashi). 42. Melanaphis sacchari (Zehntrer). 43. Melanaphis strobilanthi Medda and Chakrabarti. 44. Melanaphis vandergooti Raychaudhuri and Banerjee. Genus 9. Rhopalosiphum Koch: 45. Rhopalosiphum maidis (Fitch). 46. Rhopalosiphum nymphaeae (Linnaeus). 47. Rhopalosiphum Padi (Linnaeus). 48. Rhopalosiphum rufiabdominalis (Sasaki). Genus 10. Schizaphis Borner: 49. Schizaphis graminum (Rondani). 50. Schizaphis hypersiphonata A.N. Basu. 51. S. rotundiventris (Signoret). Aphid-host plant catalogue. References. Addendum. Index to genera and species. Figure-plates.