Concerning a new Rhizoglyphid mite with comments on the occurrence of heteromorphic males
Nesbitt, H.H.J.  Revision of species occurring in Germany of sub-genus Unionicola s.str. (Hydrachnellae, Acari)
Hevers, J.  The genus Psorergates in murids. Description of three new species (Psorergatidae: Trombidiformes)
Fain, A.; Lukoschus, F. and Hallmann, P.