Fig. 17. Gossyparia cavellii, larva, dorsal view. Fig. 18. " antenna of adult female. Fig. 19. " anal tubercles. Fig. 20. " spinnerets. Fig. 21. " male sac. Fig. 22. " antenna of male. Plate VIII. Fig. 1. Dactylopius arecœ, adult female, dorsal view. Fig. 2. " antenna and eye. Fig. 3. " rostrum and mentum. Fig. 4. " foot. Fig. 5. " extremity of abdomen. Fig. 6. " spines and spinnerets. Fig. 7. D. aurilanatus, adult female, dorsal view. Fig. 8. " antenna of female. Fig. 9. " foot of female. Fig. 10. " extremity of abdomen. Fig. 11. " anogenital ring. Fig. 12. " spinnerets. Fig. 13. " female of second stage, dorsal view. Fig. 14. " larva, dorsal view. Fig. 15. " antenna of larva. Fig. 16. " male, dorsal view. Fig. 17. " head of male, dorsal view. Fig. 18. " antenna of male. Plate IX. Fig. 1. Eriococcus raithbyi, insects on leaves. Fig. 2. " sac of female, upper view. Fig. 3. " sac of male, upper view. Fig. 4. " adult female, before gestation, dorsal view. Fig. 5. " adult female, after gestation. Fig. 6. " female of second stage, dorsal view. Fig. 7. " larva, dorsal view. Fig. 8. " antenna of adult female. Fig. 9. " antenna of female of second stage. Fig. 10. " antenna of larva. Fig. 11. " foot of adult female. Fig. 12. " claw and digitules. Fig. 13. " anal tubercles and anogenital ring. Fig. 14. " abdomen of male. Fig. 15. " spike and appendage of male. Fig. 16. " head of male, dorsal view. Fig. 17. " antenna of male. Fig. 18. " haltere of male. Fig. 19. Cœlostoma assimile, insects, second stage, in tests on twig. Fig. 20. " female of second stage, dorsal view. Fig. 21. " antenna of second stage. Fig. 22. " mentum of second stage. Fig. 23. " spiracle and trachea of second stage. Fig. 24. " extremity of abdomen of second stage, with honey-dew (?) organ. [Note.—With the exception of Plate IX., Fig. 1, all the figures in these plates are much enlarged.]