Sphenoraia (Sphenoraioides) duvivieri ( Laboissiere , 1925)

Feng, Chuan, Yang, Xing-Ke, Li, Zhi-Qiang & Liu, Yang, 2022, Revision of Sphenoraia Clark, 1865 (Coleoptera, Chrysomelidae, Galerucinae) from China, with descriptions of two new species, ZooKeys 1132, pp. 51-83 : 51

Sphenoraia (Sphenoraioides) duvivieri ( Laboissiere, 1925)

Fig. 3A-F

Sphenoraia indica Duvivier, 1887: 48 (nec. Harold 1880).

Galerucida duvivier Laboissière, 1925: 53 (replacement name for Sphenoraia indica Duvivier, 1887).

Sphenoraia (Sphenoraioides) duvivieri : Laboissière 1934: 134.

Gallerucida amala Maulik, 1936: 549. Synonymized by Laboissière 1940: 30.

Additional specimens examined.

2♂♂, China, Guangdong Province, Enping, Qixingkeng ; 100 m; 21 Jun. 2022; Chuan Feng leg.; GDAS . 1♀, China, Guangxi Province, Napo, Beidou ; 550 m; 11 Apr. 1998; Tianshan Li leg.; IZAS . 1♂, China, Guangxi Province, Longsheng, Baiyan ; 1150 m; 21 Jun. 1963; Yongshan Shi leg.; IZAS . 1♀, China, Guangxi Province, Longzhou ; 360 m; 20 Jun. 1963; Yongshan Shi leg.; IZAS . 1♂, China, Guangxi Province, Diding ; 1000-1700 m; 23 Jun. 2000; Jian Yao leg.; IZAS . 1♂, China, Guangxi Province, Jinxiu, Shengtang Mountain ; 900 m; 17 May 1999; Xuezhong Zhang leg.; IZAS . 1♂, China, Sichuan Province, Youyang ; 9 Jul. 1989; Dazhi Dong leg.; IZAS . 1♂, China, Sichuan Province, Youyang ; 9 Jul. 1989; Su Lin leg.; IZAS . 1♂, China, Guizhou Province, Guiyang; May-Jul. 1981; IZAS . 1♀, China, Guizhou Province, Maolan ; 30 May 1998; Qiongzhang Song leg.; IZAS . 1♀, China, Yunnan Province, Funing ; 250 m; 17 Apr. 1998; Chunsheng Wu leg.; IZAS . 2♂♂ 1♀, Yunnan Province, Xishuangbanna, Yunjinghong ; 900 m; 27 Apr. 1958; Yiran Zhang leg.; IZAS . 1♀, China, Yunnan Province, Changning ; 1700 m; 16 Jun. 1979; IZAS . 1♀, Yunnan Province, Xishuangbanna, Menglun ; 600 m; 11 Sep. 1993; Huanli Xu leg.; IZAS .

Description.

Male. Length 6.8-7.8 mm, width 4.8-5.6 mm.

Head, antennae, pronotum, scutellum, legs, and ventral surface of thorax dark blue, elytra and abdomen brown.

Vertex finely and sparsely covered with punctures; frontal tubercle distinctly raised, separated from each other by a deep furrow; antennae short, robust, extended to the middle of elytra; antennomeres 1-3 thin, shiny; antennomeres 4-11 wide and flat, with short hairs, antennomere 4 approximately 2.2 × as long as wide; antennomere 5 approximately 1.8 × as long as wide; antennomeres 6 and 7 each approximately 1.5 × as long as wide; antennomeres 8-10, each approximately 1.2 × as long as wide; antennomere 11 approximately 1.5 × as long as wide; antennomere 2 shortest, antennomere 3 longer than 2 slightly, 1.2 × as long as second; antennomere 4 longest, 1.2 × as long as antennomeres 2 and 3 combined; antennomeres 5-10 differ in length, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately 2.7 × as wide as long, with rounded lateral margins; disc sparsely covered with punctures, with a lateral pair of shallow impressions.

Scutellum triangular, sparsely covered with punctures.

Bases of both elytra wider than pronotum, gradually widen posteriorly and rounded at apex; dorsal surface slightly convex, irregularly covered with punctures, the interstices between punctures wider than diameter of individual punctures, 1.5 × as wide as the diameter of punctures.

Metasternum twice as long as mesosternum; prothoracic legs shortest, mesothoracic legs slightly longer, metathoracic legs longest.

Ventral surface of abdomen with 5 segments, segment 1 longest, segments 2-4 gradually shortened, apical segment equal in length to segment 1, with three lobes.

Aedeagus slender, parallel-sided, basally widened, with rounded apex. In lateral view, strongly bent.

Female. Length 6.8-7.8 mm, width 4.8-5.6 mm.

Antennae antennomeres 1-5 thin, antennomeres 6-11 wide and flat, each approximately 1.4 × as long as wide; antennomere 2 shortest, antennomere 3 longer than 2 slightly, 1.5 × as long as second; antennomere 4 longest, slightly longer than antennomeres 2 and 3 combined; apical sternite flatted.

Differential diagnosis.

This species can be distinguished from other species in the genus by the mottled brown color of the body and shallow impressions of pronotum.

Distribution.

China: Hunan, Hong Kong, Guangdong, Guangxi, Guizhou, Sichuan Yunnan; Vietnam, Laos, Thailand, India, and Myanmar.

Figures

Figure 3. Sphenoraia (Sphenoraioides) duvivieri A-C habitus D-F aedeagus A, D dorsal views B, E ventral views C, F lateral views. Scale bars: 1 mm (A-C); 0.5 mm (D-F).