Field evidence for aggregating behaviour in the tick Ixodes ricinus L.
  Heterodispus curryi sp. n. a new Scutacarid species (Acari, Tarsonemina) from Ireland
  Four new species of the genus Imparipes (Acarina, Tarsonemina, Scutacaridae) from Ireland
  Four new species of Scutacarid mites (Acarina, Prostigmata) from Ireland
