Fertility and sex ratio of Typhlodromus athiasae and T. negevi under experimental conditions: influence of prey density (Tetranychus urticae)
  Relationships between food substances, developmental success and reproduction in Typhlodromus transvaalensis (Acari: Phytoseiidae)
  Spermatophores and sperm transfer in the water mite Hydrachna conjecta Koen - Reflections of the descent of water mites from terrestrial forms