Shirozuella parenthesis 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 : 99-103

Shirozuella parenthesis Yu, 2000 Figs 30 –3259– 6368

Shirozuella parenthesis Yu, 2000[1999]: 62.

Diagnosis.

This species can be identified by pronotum yellowish brown, with a large quadrate black spot and black elytron with two large curved yellowish brown strips (Figs 30-31).

Description.

TL: 1.81-2.31mm, TW: 1.24-1.58mm, TH: 0.82-0.89mm, TL/TW: 1.46-1.47; PL/PW: 0.51-0.52; EL/EW: 1.10-1.15.

Body small, elongate oval, weakly convex. Dorsum covered with relatively sparse pubescence (Figs 30-31). Head brown, with maxillary palpus dark brown. Pronotum yellowish brown, with a large quadrate black spot. Scutellum dark brown. Elytron black, with two large curved yellowish brown strips, one C-shaped, situated around out margin of humeral callus, connected to basal margin of elytron, another one v-shaped, situated between 2/5 and 4/5 elytral length to apex; apex of elytron narrowly yellowish brown. Ventral surfaces uniformly dark brown, except elytral epipleura and legs brown.

Head moderately large (Fig. 32), 0.37 × elytral width (HW/EW=2.68); frontal surface of head capsule flatten and rather weakly anteriorly inclined below; punctures on frons fine and dense, separated by 1.5 –2.0× a diameter, with sparse long setae in punctures; eyes relatively large, distinctly broader than interocular distance; widest interocular distance about 1.6 × narrowest width. Pronotum relatively small, 0.67 × elytral width (PW/EW=1: 1.50), pronotal punctures very fine, smaller than those on head, separated by 2.0 –5.0× a diameter. Scutellum moderately large, triangular. Punctures on elytra moderately large, obviously larger than those on pronotum, separated by 1.0 –3.0× a diameter.

Pro- and mesoventrite slightly shagreened, punctures inconspicuous, with sparse short setae. Metaventrite broad and glabrous, median part flatten, with complete median discrimen; punctures on lateral area moderated large, separated by about 1.5 –3.0× a diameter, with short sparse setae. Abdominal postcoxal line complete, reaching to 2/3 length of ventrite 1, then recurved basally (Fig. 59).

Male genitalia: Penis long and slender, penis capsule inconspicuous (Fig. 60); penis guide in lateral view slender, widest at base, tapering to apex, apex pointed and curved (Fig. 61); parameres slender, sparsely setose at apical half, longer than penis guide, apex curved (Fig. 61); penis guide in ventral view almost parallel at basal 3/4, then gradually narrowing to apex, apex truncated (Fig. 62).

Female genitalia: Coxities elongate, subtriangular, about 5.3 × as long as wide, tapering to blunt, darker apices, styli small and distinct, each with short terminal setae (Fig. 63); spermatheca not sclerotized.

Types examined.

Holotype: 1♀, China, Henan: Huangshian, Laojieling, Taiping Town, Xixia County, [33°37.53'N, 111°46.17'E], ca 1500m, 19.vii.1998, Yu GY leg. (BAAF).

Other specimens examined.

1♂2♀♀, China, Shanxi: Lishan National Natural Reserve, Yuanqu, [35°28.39'N, 112°9.45'E], ca 800-1400m, 3.viii.2011, Wang XM et al. leg. (SCAU).

Distribution.

China (Henan, Shanxi).