Pyrosejidae, a new family of Trigynaspid mites (Acari, Mesostigmata, Cercomegistina) from Middle America
  Some Actinedida (Prostigmata) of the soil of North America. II. Redescription of Neophyllobius farrieri Leon 1958. (Acari - Raphignathoidea - Camerobiidae)
  Some Actinedida (Prostigmata) of the soil of N. America I. A new species of Caligonellidae (Acari - Raphignathoidea): Coptocheles grandjeani n.sp