Family Nonionidae
 
Astrononion Cushman & Edwards, 1937
 
  Astrononion sidebottomi Cushman & Edwards, 1937 (3)
  Astrononion tumidum Cushman & Edwards, 1937 (3)
 
Melonis de Montfort, 1808
 
  Melonis pompilioides (Ficht & Moll, 1798) (4)
 
Nonion de Montfort, 1808
 
  Nonion barleeanum (Williamson, 1858) (4)
  Nonion depressulum (Walker & Jacob, 1798) (3, 4, 5)
 
Nonionella Cushman, 1926
 
  Nonionella turgida (Williamson, 1856) (3, 4, 5)
 
Protelphidium Haynes, 1956
 
  Protelphidium anglicum Murray, 1965 (N)
  Protelphidium granosum (d'Orbigny, 1846) (3, 4)
 
Pullenia Parker & Jones, 1862
 
  Pullenia bulloides (d'Orbigny, 1846) (3)
  Pullenia quinqueloba (Reuss, 1851) (5)

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