Chromosomal and reproductive features of some Oriental and Australasian scale insects (Homoptera, Coccinea)
Gavrilov-Zimin, Ilya A.
Comparative Cytogenetics
2020
14
3
339
352
794F6C47-6D9E-5E76-9897-227170178D23
onukii (Kuwana, 1902)
onukii (Kuwana
1902
Kuwana
1902
Insecta
Eriococcidae
Acanthococcus
CoL
Animalia
Acanthococcus onukii subsp. prope
Hemiptera
0
339
Arthropoda
species
onukii
Material. K 1513, Thailand, Chiang Mai, slope of Doi Suthep Mt. near the University, on leaves of bamboo, 8.XI.2019, I.A. Gavrilov-Zimin.
New data. 2n = 16; bisexual reproduction with a Lecanoid heterochromatinization in male embryos. Eggs are laid in dense wax ovisac at the stage of anatrepsis, i.e. incomplete ovoviviparity is characteristic of the species. Female reproductive system consists of a spermatheca attached at the junction of the oviducts and accessory glands attached at the base of a common oviduct (Fig. 2).
Comments. Only two species of the large genus AcanthococcusSignoret, 1875 have been previously studied cytogenetically, i.e. European A. agropyri(Borchsenius, 1949) and A. insignis(Newstead, 1891), both with 2n = 16 ( Gavrilov 2004, 2007). [Nota bene! The studied specimens differ from a common Acanthococcus onukii(= Anophococcus onukii) in the conical setae with blunt apices. The generic name AnophococcusBalachowsky, 1954 is considered here as a synonym of Acanthococcus(synonymized by Danzig 1980: 205)].