Family 10. Saldidæ or Water Jumpers.
Family 11. Hydrometridæ or Skaters.
Family 12. Gerridæ or Ocean Bugs.
Family 13. Galgulidæ or Shark Bugs.
Family 14. Nepidæ or Water Scorpions.
Family 15. Notonectidæ or Water Boatmen.
_Sub-Order 2.--Homoptera._
Family 1. Cicadidæ or Cicadas Flies.
Family 2. Fulgoridæ or Lantern Flies.
Family 3. Membracidæ or Horn Flies.
Family 4. Cercopidæ or Froghoppers.
Family 5. Tettigonidæ or Meadow Lice.
Family 6. Ledridæ or Oak Lice.
Family 7. Jassidæ or Elegant Lice.
Family 8. Psyllidæ or Plant Lice.
Family 9. Aphidæ or Aphides.
Family 10. Aleyrodidæ or Powder Flies.
Family 11. Coccidæ or Scale Insects.
_Sub-Order 3.--Anoplura._
Family 1. Pediculidæ or True Lice.