Antonina vietnamensis Williams, 2004

Gavrilov-Zimin, Ilya A., 2020, Chromosomal and reproductive features of some Oriental and Australasian scale insects (Homoptera, Coccinea), Comparative Cytogenetics 14 (3), pp. 339-352 : 339

Antonina Antonina vietnamensis Williams, 2004 Figs 1c , 2

Material.

K 1380, Laos, Pak Beng, on twigs of bamboo, 13.VI.2017, I.A. Gavrilov-Zimin.

New data.

2n=20; bisexual reproduction with a Lecanoid heterochromatinization in male embryos; complete ovoviviparity. Female reproductive system is the same type as in A. parazonata (Fig. 2 ).

Comments.

Antonina vietnamensis has the same chromosome number as a closely related Oriental species of the genus, A. diversiglandulosa Gavrilov, 2016.

A. vietnamensis was previously known from the type localities in Vietnam only. It is the first record of the species for Laos.

Figures

Figure 1. Embryonic cells and chromosomes of the studied species (Margarodidae, Pseudococcidae, Eriococcidae). a Steatococcus samaraius (2 n = 4) b Antonina parazonata (2 n = 30) c A. vietnamensis (2 n = 20) d Mollicoccus guadalcanalanus (2 n = 10) e Acanthococcus prope onukii (2 n = 16) f, g Gossypariella siamensis (2 n = 16). g Shows interphase cells of male embryos with a Lecanoid heterochromatinization of the paternal set of chromosomes (arrowed in each cell). Scale bars: 10 µm.

Figure 2. General anatomy of the female (or female-like hermaphrodite in Steatococcus samaraius) reproductive system in the studied species (Margarodidae, Pseudococcidae, Eriococcidae).