Family 1. Cecidomyiidæ or Wheat Midges.
Family 2. Mycetophilidæ or Army Worms.
Family 3. Simuliidæ or Sand Flies.
Family 4. Bibionidæ or Garden Flies.
Family 5. Blephariceridæ or Blood Flies.
Family 6. Culicidæ or Gnats.
Family 7. Chironomidæ or Midges.
Family 8. Orphnephilidæ or Bread Flies.
Family 9. Psychodidæ or Fungus Midges.
Family 10. Tipulidæ or Crane Flies.
Family 11. Dixidæ or Wood Gnats.
Family 12. Rhyphidæ or Dung Midges.