New Arrenurus (Acari: Hydrachnidia: Arrenuridae) from the Parana River basin (Argentina)
  Some notes on morphology of mites of the genus Pygmephorus (Acari, Heterostigmata)
  New genera and species of Rhyncaphytoptidae (Eriophyoidea) with key to subfamilies and genera
  On the larva and nymph of Hyalomma (Hyalomma) marginatum isaaci (Sharf, 1928) (Acarina: Ixodidae)