Antonina diversiglandulosa, Gavrilov-Zimin, Ilya A., 2016

Gavrilov-Zimin, Ilya A., 2016, Cytogenetic and taxonomic studies of some legless mealybugs (Homoptera, Coccinea, Pseudococcidae), CompCytogen 4, pp. 587-601 : 591

Taxon classification Animalia Hemiptera Pseudococcidae

Antonina diversiglandulosa sp. n. Figs 2, 3

Material.

Holotype, K 1168, Southern Thailand, about 2 km E of Ranong city, under the leaf sheathes of bamboo, 26.XI.2013, Ilya Gavrilov-Zimin, female in a black circle. Paratypes: female on the same slide and 7 females on other slides, all with the same collecting data.

Description.

Female. Body broadly oval, up to 3 mm long, sclerotized in mature females (especially posterior segment of abdomen), totally enclosed in thin wax sac. Antennae 2-segmented. Legs totally absent. Anal apparatus located inside long anal tube; anal ring with 6 long setae, each longer than anal tube. Both pairs of ostioles absent. Circulus absent. Multilocular pores of two sizes: larger pores (about 10 µm in diameter) forming band along body margin except several posterior segments; smaller pores (about 6 µm in diameter) forming transverse rows on posterior abdominal sternites IV-VII. Trilocular pores (about 3 µm in diameter) and simple discoidal pores (about 2 µm in diameter) numerous and scattered all over the body surface; trilocular pores which are located inside spiracle atrium are slightly smaller than other trilocular pores. Discoidal pores of irregular structure and size (5-10 µm in diameter) forming two symmetrical groups behind posterior spiracles on abdominal sternites II-VII. Tubular ducts slightly variable in length (being more or less similar with diameter of large multilocular pores), scattered over both body sides. Short flagellate setae sparsely scattered on all segments of body.

Males and morphology of larvae unknown.

Comments.

The Oriental species of Antonina were recently revised by Williams (2004) who provided a good identification key. The new species is similar to Antonina vietnamensis Williams, 2004 that also has multilocular pores of two sizes (in contrast to all other Oriental species). However, Antonina diversiglandulosa sp. n. differs in having many more large groups of irregular pores located behind spiracles on abdominal sternites II-VII (in contrast to compact groups in Antonina vietnamensis located on sternites II and III only) and in the absence of circulus. In the neighboring Palaearctic fauna, two-sized multilocular pores are known in Antonina vera Borchsenius, 1956 only ( Danzig and Gavrilov-Zimin 2015), but this species differs from Antonina diversiglandulosa sp. n. in the total absence of irregular pores.

Etymology.

The new species name is derived from two Latin words: “diversus” and “glandula”.

Cytogenetic data.

Lecanoid heterochromatinization; 2n = 20 (Fig. 1 b–c).