PART 1. THE TETRANYCHIDAE. Anatomy, Phylogeny and Systematics. External anatomy (E.E. Lindquist). Internal anatomy (G. Alberti, A.R. Crooker). Diagnosis and phylogenetic relationships (E.E. Lindquist). Systematics (J. Gutierrez). Evolutionary changes in the tetranychidae (J. Gutierrez, W. Helle). Reproduction and Development. Spermatogenesis (L.P. Pijnacker). Oogenesis (C.C.M. Feiertag-Koppen, L.P. Pijnacker). Parthenogenesis, chromosomes and sex (W. Helle, L.P. Pijnacker). Fine structure and related properties of the chromosomes (M.J. Tempelaar). Embryonic and juvenile development (A. Crooker). Reproductive parameters (D.L. Wrensch). Physiology and Genetics. Aspects of physiology (L.P.S. van der Geest). Genetics (W. Helle). Reproductive barriers (R. de Boer). Adaptive consequences of male-haploidy (R.H. Crozier). Ecology. Webbing (U. Gerson). Dispersal (G.G. Kennedy, D.R. Smitley). Mating and chemical communication (W.W. Cone). Life types of spider mites (Y. Saito). Reproductive strategies (M.W. Sabelis). Diapause (A. Veerman). Effects of the host plants (A. Tomczyk, D. Kropczy?inska). Techniques. Rearing techniques (W. Helle, W.P.J. Overmeer). Sampling techniques (M.W. Sabelis). Mounting techniques (J. Gutierrez). Karyotyping (L.P. Pijnacker, W. Helle). Histological techniques (A.R. Crooker et al.). Studies on artificial diets for spider mites (L.P.S. van der Geest). Toxicological test methods (W. Helle, W.P.J. Overmeer).
