Gamasellodes bicolor (Berlese, 1918) (Acarina: Ascidae) and its relatives
  Observations on Pergamasus II. Subgenus Pergamasus Berlese, 1904 (Acari, Anactinotriches, Parasitidae)
  The genus Asca von Heyden (Acarina: Mesostigmata) in North America, Hawaii and Europe