Two new eriophyoid mite species of the genus Leipothrix Keifer (Acariformes, Eriophyoidea) from Russian Siberia and eastern USA
  Biological studies and description of developmental stages of Plakoribates multicuspidus Popp. and Xylobates souchnaiensis Abdel-Hamid (Acarina-Oribatei) in Egypt
  Observations on oribatid mites in laboratory cultures