Shirozuella quadrimacularis Yu, 2000

Wang, Xing-Min, Ge, Feng & Ren, Shun-Xiang, 2012, The genus Shirozuella Sasaji (Coleoptera, Coccinellidae, Shirozuellini) from the Chinese mainland, ZooKeys 182, pp. 87-108 : 98-99

Shirozuella quadrimacularis Yu, 2000 Figs 27 –2954– 5868

Shirozuella quadrimacularis : Yu et al., 2000: 187; Ren et al. 2009: 42.

Diagnosis.

This species can be distinguished from other Shirozuella by elytra black with four longitudinal yellow spots (Figs 27-28).

Description.

TL: 1.86mm, TW: 1.2mm, TH: 0.71mm, TL/TW: 1.55; PL/PW: 0.42; EL/EW: 1.25.

Body small, elongate oval, weakly convex. Dorsum covered with relatively sparse pubescence (Figs 27-28). Head black with mouth parts brown. Pronotum black, with lateral margins and anterior corners brown. Scutellum black. Elytron blackish, with two longitudinal yellow spots, one situated at middle of elytral length, less than its width from suture, the other spot smaller, situated slightly past middle, distance to lateral margin slightly more than width of spot, elytral apex slightly yellow. Ventral surfaces uniformly black, except elytral epipleura brown. Legs brown with coxae and tarsi yellow.

Head moderately large (Fig. 29), 0.40 × elytral width (HW/EW=2.50); frontal surface of head capsule slightly convex and rather weakly anteriorly inclined below; punctures on frons fine and inconspicuous, with sparse long setae in punctures; eyes relatively large, narrowly separated; widest interocular distance about 1.5 × narrowest width. Pronotum 0.68 × elytral width (PW/EW=1: 1.48), pronotal punctures extremely fine, separated by 3.0 –5.0× a diameter. Scutellum moderately large, triangular. Punctures on elytra moderately large, irregular, obviously larger than those on pronotum, separated by 1.0 –2.0× a diameter.

Pro- and mesoventrite slightly shagreened, punctures inconspicuous, with sparse short setae. Metaventrite broad and glabrous, median part concave, with complete median discrimen; punctures sparse and fine, with short sparse setae. Abdominal postcoxal line complete, v-shaped, touching 2/3 length of ventrite 1 (Fig. 45).

Male genitalia: Penis short and stout, penis capsule small, apex rounded by membrane (Fig. 55); penis guide in lateral view stout, gradually narrowing to apex, apex pointed and curved (Fig. 56); parameres slender, sparsely setose at apex, distinctly longer than penis guide (Fig. 56); penis guide in ventral view short and stout, parallel at basal 10/11, then converging sharply to pointed apex (Fig. 57).

Female genitalia: Coxities elongate, about 3.5 × as long as wide, tapering to blunt apices, styli small and distinct, with short terminal setae (Fig. 58); spermatheca not sclerotized.

Types examined.

Holotype: China. Yunnan: 1♀, Lijiang, iv.1996, Yu GY leg. (BAAF).

Other specimens examined.

China, Sichuan: 1♀, Dafengding, Meigu, [28°31.03'N, 103°18.22'E], ca 2400m, 21.ix.2007, Wang XM leg. (SCAU); 1♂1♀, Pass 30km SW Mianning [28°27.87'N, 101°58.51'E], ca 3000-3400m, 11-13.VII.2007, S. Murzin leg. (SCAU).

Distribution.

China (Sichuan, Yunnan).