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 Drepanococcus chiton (Green, 1909) Fig. 4 Material. K 864, Indonesia, New Guinea, vicinity of Jayapura, Entrop, on stem of a dicotyledonous herb, 30.X. 2011, I.A. Gavrilov-Zimin. New data. There were no embryonic cells suitable for chromosomal analysis in the available material. The reproduction is bisexual with a Lecanoid heterochromatinization in male embryos. All studied females contained embryos at early stages of embryogenesis (up to anatrepsis). Female reproductive system has the usual structure (Fig. 4 ). Comments. The only other species of the genus, D. cajani (Maskell, 1891), was previously studied cytogenetically by Moharana (1990) , who reported 2n = 18 with no other comments on the species.