Karyology and sex determination of oribatid mites
Heethoff, M.; Bergmann, P. and Norton, R.A.  Karyotype analysis of two species of Oribatida (Acari)
Zhang, P.-J.; Fu, R.-S. and Wang, Y.-H.  Chromosome numbers of spider mites from bamboo
Helle, W. and Takahashi, K.  Chromosomes in spider mites (Tetranychidae-Acari)
Bolland, H.; Gutierrez, J. and Helle, W.  Two unknown males of genus Amblyseius Berlese and their karyotypes (Mesostigmata: Phytoseiidae)
Amitai, S. and Wysoki, M.