Observations on the biology of two hygrobiotic trombidioid mites (Acari: Prostigmata: Parasitengonae), with special regard to host recognition and parasitism tactics
  Questing behaviour in the adult American dog tick, Dermacentor variabilis Say (Acarina: lxodidae)
  Studies on phoretic specificity in Macrocheles mycotrupetes and M. peltotrupetes Krantz and Mellott (Acari: Macrochelidae), associates of Geotrupinae Scarabaeidae