Chromosomal and reproductive features of some Oriental and Australasian scale insects (Homoptera, Coccinea) Author Gavrilov-Zimin, Ilya A. Zoological Institute, Russian Academy of Sciences, Universitetskaya nab. 1, St. Petersburg, 199034, Russia coccids@gmail.com text Comparative Cytogenetics 2020 14 3 339 352 http://dx.doi.org/10.3897/CompCytogen.v14i3.53367 journal article http://dx.doi.org/10.3897/CompCytogen.v14i3.53367 1993-078X-3-339 D2A1B8A1B2EE42518F3666B295BA1B73 2CD35BDCEE2B569795486A48059CE160 Gossypariella siamensis (Takahashi, 1942) Figs 1f-g , 2 , 5a Material. K 1521, Thailand, Chiang Mai, city street near the University, on branches and twigs of an undetermined dicotyledonous tree, probably Ficus sp., 9.XI.2019, I.A. Gavrilov-Zimin. New data. 2n = 16; bisexual reproduction with a Lecanoid heterochromatinization in male embryos. Complete ovoviviparity. Female reproductive system is similar with that in the previous species, but accessory glands are located in the middle part of the common oviduct (Fig. 2 ). Comments. The genus Gossypariella Borchsenius, 1960 includes 4 species distributed in the Oriental region. G. siamensis is the first species of the genus studied cytogenetically.