Hydrachnidia Krantz, 1978 - water mites
Count: [g] 56f;487g [20 Oct 2023]
   Superfamily Arrenuroidea Thor, 1900
  Count: [g] 19f;83g [20 Oct 2023]
     Family Acalyptonotidae Walter, 1911 [monotypic]
    Count: [g] 1g [20 Oct 2023]
       Genus Acalyptonotus Walter, 1912
      Count: -
         Subgenus Acalyptonotus (Paenecalyptonotus) Smith, 1976
        Count: -