Family 7. Termitiæ or White Ants.
TRIBE VI.--PHYSOPODA (or Thrips).
Family 8. Tubulifera.
Family 9. Terebrantia.
TRIBE VII.--MALLOPHAGA (or Bird-lice).
Family 10. Philopteridæ.
Family 11. Liotheidæ.
TRIBE VIII.--THYSANURA (or Bristle-tails).
Family 12. Lepismidæ.
Family 13. Campodeidæ.
Family 14. Japygidæ.
TRIBE IX.--COLLEMBOLA (or Spring-tails).
Family 15. Smynthuridæ.
Family 16. Papyriidæ.
Family 17. Degeeriadæ.
Family 18. Poduridæ.
Family 19. Amouridæ.