

  The evolution of the organs and taxa of the family Johnstonianidae (Trombidia, Tetraclada)
  Pteridopus n. g. (Acari, Johnstonianidae) and a probable auditory organ in a mite
  Centrothrombidium delamarei n. sp. (Thrombidion: Johnstonianidae) from Patagonia
