Gerromorpha Popov, 1971 see Infraorder Gerromorpha Popov, 1971
Count: 5f;14g;51s
   Family Hydrometridae (Billberg, 1820)
  Count: 1g;2s
     Subfamily Hydrometrinae (Billberg, 1820) Esaki, 1927
    Count: 1g;2s
       Genus Hydrometra Latreille, 1796
      Count: 2s
         1 Hydrometra hungerfordi Torre-Bueno, 1926
        Count: -
         2 Hydrometra martini Kirkaldy, 1900
        Count: -