Differences in nymphs of Amblyomma triguttatum triguttatum Koch moulting to males or females
  Lack of effect of immunity to crab chitin on tick infestations of rats and rabbits
  Notes on the biology of Arctoseius cetratus (Sellnick) (Mesostigmata: Ascidae)
  Phoresy redefined and examined in Macrocheles muscaedomesticae (Acarina:Macrochelidae)