Komodesia circuliplurima, 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 : 594-596

Taxon classification Animalia Hemiptera Pseudococcidae

Komodesia circuliplurima sp. n. Figs 6, 7

Material.

Holotype, female, K 979, Indonesia, Flores Is., vicinity of Labuan Bajo, under the leaf sheathes of Poaceae grass, 15.XII.2012, Ilya Gavrilov-Zimin, weakly sclerotized female on the slide. Paratypes: heavily sclerotized female on the same slide, 2 other females on other slide with the same collecting number and data; 2 females K 993, Indonesia, Flores Is., vicinity of Labuan Bajo, Wae Cicu, under the leaf sheath of Poaceae grass, 18.XII.2012, Ilya Gavrilov-Zimin.

Description.

Female. Body elongate oval, up to 5 mm long, sclerotized in mature adult females. Three posterior abdominal segments with lateral lobes. Antennae 2-segmented. Legs totally absent. Clypeolabral shield with anterior projection. Vulva caudally directed. Anal apparatus located inside short anal tube; clear structure of anal ring invisible in available females, but the ring bears 6 long setae, which longer than anal tube. Both pairs of ostioles absent. Circuli 5 in number, small, round, all of about the same size. Multilocular pores absent. Trilocular pores (each about 4 µm in diameter) scattered over dorsal surface of cephalothorax and anterior abdominal tergites, forming sparse groups around spiracles on venter and totally absent on four posterior abdominal segments. Simple discoidal pores (each about 2 µm in diameter) sparsely scattered on all body surface. Microtubular ducts very short (each about 3 µm in diameter), button-shaped, forming two symmetric groups on venter from posterior spiracles to abdominal sternite VI. Tubular ducts (all with small collars) of three main sizes: largest ducts about two times wider than diameter of trilocular pore numerous on head; mid-sized ducts similar in width to trilocular pore, forming marginal band along all body venter; smallest tubular ducts about 1.5 times thinner than diameter of trilocular pore, scattered on abdominal tergites and numerous in medial and submedial zones of venter. Dorsal and ventral surface of body covered with rare minute flagellate setae; significantly longer setae present on both sides of two posterior abdominal segments.

Males and morphology of larvae unknown.

Etymology.

The new species name is derived from two Latin words: “circulus” meaning circle and “plurimus” meaning many in plural and means: "with many circuli".

Cytogenetic data.

Lecanoid heterochromatinization; 2n = 30 (Fig. 8). Komodesia circuliplurima gen. et sp. n. demonstrates the highest number of chromosomes currently known in legless mealybugs.