Sub-class B, Exopterygota.

  1. Dermaptera (Earwigs).
  2. Orthoptera (Cockroaches, Grasshoppers, Crickets).
  3. Plecoptera (Stone-flies).
  4. Isoptera (Termites or 'White Ants').
  5. Corrodentia
    1. Copeognatha (Book-lice).
    2. Mallophaga (Biting-lice).
  6. Ephemeroptera (May-flies).
  7. Odonata (Dragon-flies).
  8. Thysanoptera (Thrips).
  9. Hemiptera
    1. Heteroptera (Bugs, Pond-skaters)
    2. Homoptera (Cicads, 'Greenfly,' Scales).
  10. Anoplura (Lice).