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Research Article
Revision of Sphenoraia Clark, 1865 (Coleoptera, Chrysomelidae, Galerucinae) from China, with descriptions of two new species
expand article infoChuan Feng‡§, Xing-Ke Yang‡|, Zhi-Qiang Li‡, Yang Liu§
‡ Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China
§ Northwest University, Xi’an, China
| Institute of Zoology, Chinese Academy of Sciences, Beijing, China

Corresponding author: Zhi-Qiang Li ( lizq@giz.gd.cn )

Corresponding author: Yang Liu ( liuyangent@nwu.edu.cn )

Academic editor: Michael Schmitt
© 2022 Chuan Feng, Xing-Ke Yang, Zhi-Qiang Li, Yang Liu.
This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Citation: Feng C, Yang X-K, Li Z-Q, Liu Y (2022) Revision of Sphenoraia Clark, 1865 (Coleoptera, Chrysomelidae, Galerucinae) from China, with descriptions of two new species. ZooKeys 1132: 51-83. https://doi.org/10.3897/zookeys.1132.89858
ZooBank: urn:lsid:zoobank.org:pub:2F80EC30-E025-4CE4-95F2-E9F99C8BD6B7
Open Access

Abstract

In this study, ten species of Sphenoraia Clack, 1865 are recognized and re-described: Sphenoraia (Sphenoraioides) anjiensis Yang & Li, 1998, Sphenoraia (Sphenoraioides) berberii Jiang, 1992, Sphenoraia (Sphenoraioides) duvivieri (Laboissière, 1925), Sphenoraia (Sphenoraioides) haizhuensis Yang, 2021, Sphenoraia (Sphenoraioides) micans (Fairmaire, 1888), Sphenoraia (Sphenoraioides) nebulosa (Gyllenhal, 1808), Sphenoraia (Sphenoraioides) nigromaculata Jiang, 1992, Sphenoraia (Sphenoraioides) punctipennis Jiang, 1992, Sphenoraia (Sphenoraioides) rutilans (Hope, 1831), and Sphenoraia (Sphenoraioides) yajiangensis Jiang, 1992. Two new species, Sphenoraia (Sphenoraia) decemmaculata Feng, Yang & Liu, sp. nov. and Sphenoraia (Sphenoraioides) flavomarginata Feng, Yang & Li, sp. nov., are described. Additionally, Sphenoraia (Sphenoraia) cupreata Jacoby, 1890 and Sphenoraia (Sphenoraia) nigra Wang, Li & Yang, 2000 are transferred from Sphenoraia to Gallerucida. A key to the 12 Chinese species of Sphenoraia is given.

Keywords

Leaf beetles, new combination, new species, Sphenoraia, taxonomy

Introduction

Sphenoraia was established by Clark (1865), with Galleruca bicolor (Hope, 1831) as the type species. Sphenoraia is the senior synonym of the subgenus Neosermylassa Chûjô, 1956 synonymized by Kimoto (1986). All known species are distributed in the Palearctic and Oriental regions. Currently, there are 25 known species of Sphenoraia worldwide, among which 12 species occur in China (Yang et al. 1998; Wang et al. 2000; Nie et al. 2017). In this paper we describe the main generic characters of Sphenoraia according to those defined by Wang et al. (2000) based on examination of type material for most species. The species of this genus can be distinguished by the following characters: head small, frontal tubercle distinct, antennae slender and extend to the middle of each elytron, antennomere 2 shortest, antennomere 3 nearly equal in length and shape to antennomere 2 or slightly longer than 2, antennomere 4 longest and longer than antennomeres 2 and 3 combined. The pronotum is wider than the head, being nearly twice as broad as it is long, basal and with the apical border not margined, the lateral border margined; the disc of pronotum is without deep depression. Scutellum triangular, smooth, normally impunctate. The elytra are broader at the base than where they join the pronotum, the humeri are strongly convex, the disc is strongly raised and has punctures. The elytral epipleuron is broad at the base, and gradually narrows from its center, extending to the apex of the elytron. The procoxal cavity is closed behind, and the procoxa is globose. Claws are appendiculate, with a sclerotized appendage underneath. Male with apex of last visible sternite trilobed; female with the last visible sternite complete (Jiang 1992; Wang et al. 2000). This genus can be divided into two subgenera, Sphenoraioides and Sphenoraia, according to the shape of the body and antenna type (Yang et al. 2015).

Materials and methods

The morphological characters were examined with an Olympus SZ61 microscope. The genitalia of males from each species were dissected using the following procedure: for dried or ethanol preserved specimens, the abdomen was removed from each specimen, bathed in boiling water for 5–10 minutes, then transferred to a vial containing 10% KOH solution. The abdomen with the aedeagus was washed in distilled water several times, transferred onto a cavity slide using fine forceps and the aedeagus was separated from the abdomen using a hooked, fine dissecting needle.

Habitus images were taken using a Canon 5DSR/Nikon SMZ25 digital camera. Aedeagus images were taken using a Nikon D610 digital camera, attached to a Zeiss V/A1 microscope (with 5× objective lens). A cable shutter release was used to prevent the camera from shaking. To obtain the full depth of focus, all images were stacked using HELICON FOCUS 7 and the resulting output was edited with Adobe Photoshop CC.

The material in this study is deposited in the following institutions: GDAS Institute of Zoology, Guangdong Academy of Sciences, Guangzhou, China and IZAS Institute of Zoology, Chinese Academy of Sciences, Beijing, China

Results

Sphenoraia is similar to several genera, and a short key to the more closely related genera of Sphenoraia in the large subfamily Galerucinae is provided below.

Key to the similar genera of Hylaspini

1 Anterior metasternal process not extending beyond the front edge of the meso-coxal cavities, basal border of pronotum not margined 2
– Anterior metasternal process extending beyond the front edge of the meso-coxal cavities, pronotum borders margined, pronotum with a pair of transverse depressions or without depressions Gallerucida Motschulsky, 1860
2 Anterior and lateral border of pronotum margined, posterior corner of pronotum acute, disc with deep transverse depressions Aplosonyx Chevrolat, 1837
– Lateral border of pronotum margined, posterior corner of pronotum rounded, disc without deep transverse depressions Sphenoraia Clark, 1865

Sphenoraia Clark, 1865

Sphenoraia Clark, 1865: 257, 262. Type species: Galleruca bicolor Hope, 1831, designated by Gressitt and Kimoto 1963.

Sermylassa subgenus Neosermylassa Chujo, 1956: 14. Type species: Semylassa (Neosermylassa) japonica Chûjô, 1956, by monotypy and original designation. Synonymized by Kimoto 1986: 312.

Key to the Chinese species of Sphenoraia

1 Body shape elliptical; antennae short, antennomere 3 almost as long as antennomere 2 in male, from antennomere 4 they become gradually broader [Sphenoraia (Sphenoraioides)] 2
– Body shape nearly parallel; antennae filiform, antennomere 2 shorter than 3 in male, several antennomeres of apex slightly thick [Sphenoraia (Sphenoraia)]. Head and pronotum yellowish brown, pronotum without any black spots, antennae and legs black Sphenoraia (Sphenoraia) decemmaculata sp. nov.
2 Head and pronotum yellow or yellowish brown, pronotum usually with one pair of black spots, elytron with seven black spots 3
– Head and pronotum dark green or bluish black 4
3 Scutellum without distinct punctures Sphenoraia (Sphenoraioides) nebulosa (Gyllenhal, 1808)
– Head and scutellum with distinct punctures Sphenoraia (Sphenoraioides) haizhuensis Yang, 2021
4 Elytra without any spots or stripes 5
– Elytra with black spots or yellow stripes 7
5 Elytra reddish brown Sphenoraia (Sphenoraioides) duvivievi (Laboissière, 1925)
– Elytra not reddish brown 6
6 Elytra bluish green or red Sphenoraia (Sphenoraioides) micans (Fairmaire, 1888)
– Elytra bluish black; pronotum with a pair of shallow depressions laterally Sphenoraia (Sphenoraioides) rutilans (Hope, 1831)
7 Elytra yellow, each elytron with five black spots Sphenoraia (Sphenoraioides) anjiensis Yang & Li, 1998
– Elytra blackish green, with yellow stripes 8
8 Epipleuron yellow, elytra surface without any spots or stripes Sphenoraia (Sphenoraioides) yajiangensis Jiang, 1992
– Epipleuron yellow, elytra surface with stripes 9
9 Elytra surface with one transverse yellow stripe at subapex Sphenoraia (Sphenoraioides) flavomarginata sp. nov.
– Elytra with yellow stripes at base and apex 10
10 Stripes at base and apex not joined at the middle suture Sphenoraia (Sphenoraioides) berberii Jiang, 1992
– Stripes at base and apex joined in middle suture 11
11 Elytra divided into four parts by stripes Sphenoraia (Sphenoraioides) punctipennis Jiang, 1992
– Elytra divided into seven parts by stripes Sphenoraia (Sphenoraioides) nigromaculata Jiang, 1992

Sphenoraia (Sphenoraioides) anjiensis Yang & Li, 1998

Fig. 1A–F

Sphenoraia (Sphenoraioides) anjiensis Yang & Li, 1998: 132.

Type specimens examined

Holotype : ♀, China, Zhejiang Province, Anji, Longwang Mountain; 1500 m; 13 May 1996; Hong Wu leg.; IZAS. Paratype: 1♂ China, Zhejiang Province, Anji, Longwang Mountain; 26 Jul. 1996; Hong Wu leg.; IZAS.

Additional specimen examined

1♀, China, T`ienmll Shan (Tianmu Mountian), Musèe Heude; 21 Jul. 1936; D. Piel. leg.; IZAS.

Description

Male. Length 7.2 mm, width 4.6 mm.

Head, antennae, pronotum, ventral surface of thorax, scutellum, and legs black, elytra and abdomen yellow; each elytron with five black spots, base with one pair of spots and apex with one spot, median with a large transverse band and subapex with a large spot; abdomen with four pair of round black spots at side on the first, second, third, fourth visible sternites.

Vertex covered with punctures finely and sparsely; frontal tubercle distinctly raised, each separated by a deep furrow; antennae slender, extended to the middle of the elytra; antennomeres 1–3 thin, shiny; antennomeres 4–11 wide and flat, with short hairs, antennomere 4 approximately twice as long as it is wide; antennomeres 5–10 each approximately 1.6 × as long as they are wide; antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.5 × as long as antennomere 2; antennomere 4 longest, 1.2 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately 1.9 × as wide as it is long, with lateral margins straight and parallel slightly, anterior angle thickened, produced forward, disc slightly convex, sparsely covered with small punctures.

Scutellum triangular, with rounded apex, smooth, impunctate.

Bases of both elytra combined wider than the pronotum, gradually widen posteriorly and rounded at the apexes; dorsal surface slightly convex and covered with large and deep regular punctures, partly arranged in ten rows on each elytron, the interstices of the punctures equal to the diameter of the punctures.

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

Ventral surface of the abdomen with five segments, segment 1 longest, segments 2–4 gradually shortened, apical segment slightly longer than segment 4, with three lobes.

Aedeagus slender, parallel-sided, basally widened with triangular apex, distinctly pointed. In lateral view moderately bent.

Female. Length 7.0–7.2 mm, width 4.8–5.0 mm.

Antennae slender, antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.4 × as long as second; antennomere 4 longest, longer than antennomeres 2 and 3 combined slightly; antennomeres 5–10 equal in length, shorter than 4; apical sternite flatted.

Differential diagnosis

This species can be distinguished from other species by its black pronotum and the black spots on the abdomen.

Distribution

China: Zhejiang.

Figure 1. 

Sphenoraia (Sphenoraioides) anjiensis 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).

Sphenoraia (Sphenoraioides) berberii Jiang, 1992

Fig. 2A–F

Sphenoraia berberii Jiang, 1992: 665.

Sphenoraia (Sphenoraioides) berberii: Wang et al. 2000: 118.

Type specimens examined

Holotype : ♂, China, Yunnan Province, Deqin, Baimang snowy mountain; 3300 m; 28 Aug. 1987; Shuyong Wang leg.; IZAS. Paratypes: 10♂♂6♀♀, same information as holotype. Allotype: 1♀, same information as holotype.

Additional specimen examined

1♀, China, Yunnan Province, Lijiang, Yulong Mountain; 3200 m; 17 Jul. 1984; Jianguo Fan leg. IZAS.

Description

Male. Length 5.9–6.4 mm, width 3.4–3.6 mm.

Head, pronotum, and scutellum blackish green, antennae, elytra, legs, and ventral surface of the body brown; apex of each abdominal segment yellow, elytral epipleuron from base to subapex yellow, connecting with yellow stripes on the base and apex of the elytra.

Vertex covered with punctures finely and sparsely; frontal tubercle distinctly raised, separated from each other by a deep furrow; antennae short, robust, extended to the middle of the elytra; antennomeres 1–3 thin, shiny; antennomeres 4–11 wide and flat, with short hairs, antennomeres 2 and 3 shortest, antennomere 3 nearly equal in length and shape to antennomere 2, antennomere 4 longest, 1.5 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately 1.8 × as wide as long, with lateral margins rounded, disc slightly convex, sparsely covered with punctures in the center, base, and apex of pronotum covered with punctures closely. The interstices between punctures equal to the diameter of each puncture.

Scutellum triangular, only on the base and apex, 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 equal to the diameter of individual punctures.

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

Ventral surface of abdomen with five segments, segment 1 longest, segments 2–4 gradually shortened, apical segment slightly longer than segment 4, with three lobes.

Aedeagus slender, rounded laterally, basally widened, with triangular apex, distinctly pointed. In lateral view moderately bent.

Female. Length 5.8–6.2 mm, width 3.5–3.8 mm

Antennae slender, antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.2 × as long as second; antennomere 4 longest, twice as long as antennomeres 2 and 3 combined; apical sternite flatted.

Differential diagnosis

This species can be distinguished from other species by its blackish green pronotum and the yellow stripes on the elytra.

Figure 2. 

Sphenoraia (Sphenoraioides) berberii A–C habitus D–F aedeagus A, D dorsal views B, E ventral views C, F lateral views. Scale bars 1 mm (A); 0.5 mm (D–F).

Distribution

China: Yunnan.

Host plant

Berberis sp.

Sphenoraia (Sphenoraioides) duvivieri (Laboissière, 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.

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).

Sphenoraia (Sphenoraioides) haizhuensis Yang, 2021

Fig. 4A–E

Sphenoraia (Sphenoraioides) haizhuensis Yang, 2021: 245.

Type specimens examined

Holotype : ♂, Guangdong Province, Guangzhou, Haizhu wetland; 113°18'24"E, 23°4'32"N; 20–23 May 2021; FIT-1; GDAS. Paratype: 1♂, Guangdong Province, Guangzhou, Haizhu wetland; 113°21'29"E, 23°2'58"N; 2020.9.21–10.19; MT-9; GDAS.

Description

Male. Length. 6.2–6.4 mm, width 4.0–4.2 mm.

Head, pronotum, elytra, and legs yellow, antennae and ventral surface of body yellowish brown, scutellum brown; pronotum with a black spot on each side; each elytron with seven black spots, basal, middle and subapex with one pair of spots and apex with one spot.

Vertex finely and sparsely covered with punctures; frontal tubercles distinctly raised and 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, segment 4 approximately twice as long as wide; antennomeres 5–10, each approximately 1.6 × as long as wide; antennomeres 2 and 3 shortest, antennomere 3 nearly equal in length and shape to antennomere 2, antennomere 4 longest, twice as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately 2.5 × as wide as long, with rounded lateral margins; disc slightly depressed on each side, sparsely covered with small punctures, with the punctures on pronotum larger than those on the head.

Scutellum triangular, sparsely covered with small punctures.

Base of both elytra wider than pronotum, gradually widen posteriorly and rounded at apex; dorsal surface slightly convex, irregularly covered with large and deep punctures, the interstices between punctures slightly wider than diameter of individual punctures.

Metasternum 2.5 × as long as mesosternum; prothoracic legs shortest, mesothoracic legs slightly longer, metathoracic legs longest.

Ventral surface of abdomen with five segments, segment 1 longest, segments 2–4 gradually shortened, apical segment slightly longer than segment 4, three lobes.

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

Differential diagnosis

This species can be distinguished from other species by black spots on the elytra. This species closely resembles Sphenoraia (Sphenoraioides) nebulosa, but the latter is without punctures in the scutellum.

Distribution

China: Guangdong.

Figure 4. 

Sphenoraia (Sphenoraioides) haizhuensis A, B habitus C–E aedeagus A, C dorsal views D ventral views B, E lateral views. Scale bars: 1 mm (A, B); 0.5 mm (C–E).

Sphenoraia (Sphenoraioides) micans (Fairmaire, 1888)

Fig. 5A–F

Eustetha micans Fairmaire, 1888: 42.

Galerucida fulgida var. coerulescens Weise, 1922: 91. Synonymized by Wilcox 1971: 198.

Sphenoraia (Sphenoraioides) micans: Laboissière 1934: 131.

Sphenoraia (Sphenoraioides) micans var. cyanella Laboissière, 1934: 132. Synonymized by Wilcox 1971: 198.

Other specimens examined

1♀, China, Henan Province, Luanshan; 1000 m; 10 Jul. 1996; Wanzhi Cai leg.; IZAS. 1♂, China, Henan Province, Luanshan; 1000 m; 10 Jul. 1996; Jikun Yang leg.; IZAS. 1♂1♀, China, Zhejiang Province, Anji, Longwang Mountain; 500 m; 12 Jun. 1996; Xingke Yang leg.; IZAS. 1♂, China, Zhejiang Province, Anji, Longwang Mountain; 14 Jun. 1996; 1400 m; Hong Wu leg.; IZAS. 1♀, China, Zhejiang Province, Tianmu Mountain; Jul. 2000; IZAS. 1♂ China, Zhejiang Province, Tianmu Mountain; Jul. 1999; IZAS. 1♂, China, Zhejiang Province, Tianmu Mountain; 600–800 m; 7 Jun. 1998; Mingyuan Gao leg.; IZAS. 1♀, China, Jiangxi Province, Jinggangshan, xiangzhou; 26 Apr. 2011; Yan Mei leg.; GDAS. 1♀, China, Hunan Province, Sangzhi, Tianpingshan; 700–1450 m; 14 Aug. 1988; Shuyong Wang leg. IZAS. 1♂, China, Wuyi Mountain; 22 Apr. 1997; Yanyu Wu leg.; IZAS. 1♀, China, Fujian Province, Guadangling; 29 Aug. 1983; Jiang Wang leg.; IZAS. 1♂, China, Guangxi Province, Longsheng, Hongtan; 900 m; 14 Jun. 1963; Shuyong Wang leg.; IZAS. 1♀, China, Guizhou Province, Chiqian; 670 m; 24 Jul. 1988; Shuyong Wang leg.; IZAS. 1♀, China, Guizhou Province, Fanjing Mountain; 2 Aug. 1988; Yongkun Li leg.; IZAS.

Description

Male. Length 7.7–8.4 mm, width 5.2–5.8 mm.

Head, pronotum and elytra green, antennae, scutellum, legs, and ventral surface of thorax dark blue, abdomen yellowish brown. Some individuals with blue or red head, pronotum, and elytra.

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 twice as long as wide; antennomeres 5–11, each approximately 1.5 × as long as wide; antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.2 × as long as second; antennomere 4 longest, 1.2 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 unequal in length, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately 2 × as wide as long, with rounded lateral margins; disc slightly convex, sparsely covered with punctures.

Scutellum triangular, with rounded apex, smooth, impunctate.

Bases of both elytra wider than pronotum, gradually widen posteriorly and rounded at apex; dorsal surface slightly convex, irregularly covered with punctures, densely covered with large punctures on humeral angle and sparsely covered in small punctures on other parts. The interstices between punctures wider than diameter of individual punctures on apex of the elytra, 2 × as wide as the diameter of individual punctures.

Metasternum 2.5 × as long as mesosternum; prothoracic legs shortest, mesothoracic legs slightly longer, metathoracic legs longest.

Ventral surface of abdomen with five segments, segment 1 longest, segments 2–4 gradually shortened, apical segment slightly longer than segment 4, with three lobes.

Aedeagus slender, parallel-sided, basally widened, apically rounded, slightly pointed. In lateral view strongly bent.

Female. Length 7.8–8.4 mm, width 5.3–5.8 mm.

Antennae antennomeres 1–3 thin, antennomeres 7–11 wide and flat, with short hairs, antennomere 7, twice as long as wide; antennomeres 8–11 each approximately 1.6 × 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 by metallic green, red, or blue coloration of the body.

Distribution

China: Henan, Zhejiang, Jiangxi, Hunan, Fujian, Taiwan, Guangdong, Guangxi, Sichuan, Guizhou, Xizang; Indo-China.

Host plant

Rubiaceae.

Figure 5. 

Sphenoraia (Sphenoraioides) micans 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).

Sphenoraia (Sphenoraioides) nebulosa (Gyllenhal, 1808)

Fig. 6A–F

Galleruca nebulosa Gyllenhal, 1808: 292.

Sphenoraia (Sphenoraioides) nebulosa: Laboissière 1934: 132.

Other specimens examined

1♀, China, Hainan Province; 8 Aug. 1934; IZAS. 1♂, China, Hainan; 24 Mar. 1934; IZAS. 1♂, China, Hainan Province, Jianfengling; 13–17 Apr. 1984; IZAS. 1♂, Lingnan University; 10 May 1948; En-119989; SYSU. 1♂, China, Guangxi Province, Yangshuo; 29 Jun. 1938; IZAS. 1♂, China, Guangxi Province, Yangshuo; 6 Apr. 1938; IZAS. 1♀, China, Guangxi Province, Yangshuo; 14 Oct. 1938; IZAS. 1♀, China, Guangxi Province, Fulong, Pinglong Mountain; 650 m; 13 Mar. 1998; Gexia Qiao leg.; IZAS. 1♂, China, Guangxi Province, Longzhou, Nonggang; 330 m; 15 Jun. 2000; Wenzhu Li leg.; IZAS. 1♂, China, Guangxi Province, Guilin; 14 Aug. 1952; IZAS. 2♀, China, Guangxi Province, Guilin; 19 Sep. 1952; IZAS. 2♀, China, Guangxi Province, Guilin; 19 Sep. 1952; IZAS. 5♂5♀, China, Guangxi Province, Guilin; 6 Mar. 1952; IZAS. 1♀, China, Yunnan Province, Yiwubannan, Menglun; 650 m; 25 Jul. 1959; Yiran Zhang leg.; IZAS. 1♂, China, Yunnan Province, Yiwubannan, Menglun; 650 m; 3 Apr. 1964; Baolin Zhang leg.; 1♂, China, Yunnan Province, Xishuangbanna, Mengla; 620–650 m; 27 May 1959; Fuji Pu leg.; IZAS. 1♂, China, Yunnan Province, Xishuangbanna, Damenglong; 650 m; 13 Apr. 1958; Shuyong Wang leg.; IZAS.

Description

Male. Length 6.2–6.8 mm, width 4.6–5.2 mm.

Head, pronotum, elytra and legs yellow, antennae and ventral surface of the body yellowish brown, scutellum brown; pronotum with a black spot on each side; each elytron with seven black spots, basal, middle, and subapical areas each with one pair of spots, apical area with one spot; some specimens have reduced or dark grey spots on the elytra, some have black spots interconnected.

Vertex finely and sparsely covered with punctures; frontal tubercle distinctly raised, separated from each other by a deep furrow; antennae short, robust, extend to the middle of the elytra; antennomeres 1–3 thin, shiny; antennomeres 4–11 wide and flat, with short hairs, antennomere 4 approximately 2.5 × as long as wide; antennomeres 5–10, each approximately 1.6 × as long as wide; antennomeres 2 and 3 shortest, antennomere 3 similar in length and shape to antennomere 2, antennomere 4 longest, 1.5 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately 2.5 × as wide as long, with rounded lateral margins; disc slightly convex, sparsely covered with small punctures, with the punctures on the pronotum larger than those on the head.

Scutellum triangular, smooth, impunctate.

Basal width of both elytra wider than the pronotum, gradually widen posteriorly and rounded at apex; dorsal surface slightly convex, irregularly covered with large and deep punctures, the interstices between punctures slightly wider than diameter of individual punctures.

Metasternum 2.5 × as long as mesosternum; prothoracic legs shortest, mesothoracic legs slightly longer, metathoracic legs longest.

Ventral surface of abdomen with five segments, segment 1 longest, segments 2–4 gradually shortened, apical segment slightly longer than segment 4, with three lobes.

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

Female. Length 6.2–6.6 mm, width 4.5–5.0 mm.

Antennae yellow, antennomeres 6–11 brown; antennomeres 1–5 thin, antennomeres 6–11 wide and flat, each approximately 1.5 × as long as wide; antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.2 × 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 the other species by black spots of the pronotum and elytra. However, it especially resembles Sphenoraia (Sphenoraioides) haizhuensis, the former differs in having a scutellum without punctures, and the aedeagus in lateral view being moderately bent.

Distribution

China: Guangdong, Hainan, Guangxi, Yunnan; Vietnam, Laos, Cambodia, Thailand, Myanmar, India, Sikkim.

Figure 6. 

Sphenoraia (Sphenoraioides) nebulosa 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).

Sphenoraia (Sphenoraioides) nigromaculata Jiang, 1992

Fig. 7A–F

Sphenoraia nigromaculata Jiang, 1992: 665.

Sphenoraia (Sphenoraioides) nigromaculata: Wang et al. 2000: 118.

Type specimen examined

Holotype : ♂, China, Sichuan Province, Maerkang; 2500 m; 17 Aug. 1983; Shuyong Wang leg.; IZAS.

Additional specimen examined

1♀, China, Sichuan Province, Xiaojin, Fubian; 2900 m; 19 Aug. 1963; Leyi Zheng leg.; IZAS.

Description

Male. Length 6.0 mm, width 3.4 mm.

Head, pronotum and scutellum blackish green, antennae, legs, and ventral surface of body brown, elytra and apex of each abdominal segment yellow; each elytron with seven black spots of different sizes, basal, middle and subapex each with one pair of spots, apex with one spot.

Vertex densely covered with punctures; frontal tubercles distinctly raised, each separated from each other by a deep furrow; antennae short, robust, extending to the middle of the elytra; antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.2 × as long as second; antennomere 4 longest, twice as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately 1.9 × as wide as long, with rounded lateral margins; disc slightly convex, sparsely covered in middle with small punctures with large punctures on other parts. The interstices between punctures slightly narrower than diameter of individual punctures and lightly covered with small punctures in interstices.

Scutellum triangular, densely covered with punctures.

Bases of both elytra wider than the pronotum, gradually widen posteriorly and rounded at apex; dorsal surface slightly convex, irregularly covered with large and deep punctures, the interstices between punctures slightly narrower than diameter of individual punctures and lightly covered with small punctures in interstices.

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

Ventral surface of abdomen with five segments, segment 1 longest, segments 2–4 gradually shortened, apical segment slightly longer than segment 3, three lobes.

Aedeagus slender, rounded laterally, basally widened, with triangular apex, slightly pointed. In lateral view moderately bent.

Female. Length 5.8 mm, width 3.3 mm.

Antennal antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.4 × as long as second; apical sternite flatted.

Differential diagnosis

This species can be distinguished from other species by the blackish green pronotum and blackish green spots of the elytra.

Distribution

China: Sichuan.

Figure 7. 

Sphenoraia (Sphenoraioides) nigromaculata 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).

Sphenoraia (Sphenoraioides) punctipennis Jiang, 1992

Fig. 8A–F

Sphenoraia punctipennis Jiang, 1992: 665.

Sphenoraia (Sphenoraioides) punctipennis: Wang et al. 2000: 118.

Type specimen examined

Holotype : ♂, China, Xizang, Mangkang, Haitong; 3250 m; Aug. 1982; Shuyong Wang leg.; IZAS.

Description

Male. Length 6.0 mm, width 3.4 mm.

Head, pronotum and scutellum blackish green, antennae, elytra, legs, and ventral surface of body brown; elytral epipleuron from base to subapex yellow, with middle of suture yellow, connected by yellow stripes from the base to the apex of each elytron.

Vertex finely and sparsely covered with punctures; frontal tubercles distinctly raised, each separated by a deep furrow; antennae short, robust, extended to the middle of the elytra; antennomeres 1–3 thin, shiny; antennomeres 4–11 wide and flat, with short hairs, antennomeres 2 and 3 shortest, antennomere 3 similar in length and shape to antennomere 2, antennomere 4 longest, 1.5 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately 1.8 × as wide as long, with rounded lateral margins; disc slightly convex, sparsely covered with small punctures in the middle with large punctures on other parts. The interstices between punctures equal to the diameter of individual punctures and lightly covered with small punctures in interstices.

Scutellum triangular, sparsely covered with punctures at base.

Bases of both elytra wider than the pronotum, gradually widen posteriorly, and rounded at apex; dorsal surface slightly convex, irregularly covered with large and deep punctures, the interstices between punctures narrower than the diameter of individual punctures and lightly covered with small punctures in interstices, with their interstices somewhat wrinkled.

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

Ventral surface of abdomen with five segments, segment 1 longest, segments 2–4 gradually shortened, apical segment slightly longer than segment 4, three lobes.

Aedeagus slender, rounded laterally, basally widened, with triangular apex, distinctly pointed. In lateral view moderately bent.

Differential diagnosis

This species can be distinguished from other species by blackish green pronotum, yellow stripes of elytra and large punctures on elytra.

Distribution

China: Xizang.

Host plant

Rheum sp.

Figure 8. 

Sphenoraia (Sphenoraioides) punctipennis 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).

Sphenoraia (Sphenoraioides) rutilans (Hope, 1831)

Fig. 9A–F

Eumolpus rutilans Hope, 1831: 30.

Chrysomela mutabilis Hope, 1831: 30. Synonymized by Maulik 1936: 547.

Galleruca fulgida Kollar & Redtenbacher, 1844: 554. Synonymized by Maulik 1936: 547.

Sphenoraia cyanea Allard, 1890: 92. Synonymized by Laboissière 1940: 30.

Sphenoraia (Sphenoraioides) rutilans: Gressitt and Kimoto 1963: 657.

Other specimens examined

1♂, China, Yunnan Province, Xishuangbanna, Menglun; 600 m; 22 Apr. 1994; Longlong Yang leg.; IZAS. 1♂, China, Yunnan Province, Xishuangbanna, Mengla; 620–650 m; 2 May 1959; Facai Zhang leg.; IZAS. 1♂, China, Yunnan Province, Xishuangbanna, Mengla; 620–650 m; 3 May 1959; Facai Zhang leg.; IZAS. 1♂, China, Yunnan Province, Xishuangbanna, Mengla; 620–650 m; 3 May 1959; Facai Zhang leg.; IZAS. 1♀, China, Yunnan Province, Xishuangbanna, Mengla; 800 m; 1 Jun. 1958; Shuyong Wang leg.; IZAS. 2♂♂1♀, China, Yunnan Province, Xishuangbanna, Menghun; 1200–1400 m; 3 Jun. 1958; Shuyong Wang leg.; IZAS. 1♂, China, Yunnan Province, Yiwubannan, Menglun; 650 m; 3 Aug. 1959; Yiran Zhang leg.; IZAS. 1♀, Yunnan Province, Xishuangbanna,Damenglong; 650 m; 5 Oct. 1958; Zhizi Chen leg.; IZAS. 1♀, Yunnan Province, Xishuangbanna, Damenglong; 650 m; 7 Oct. 1958; Zhizi Chen leg.; IZAS.

Description

Male. Length 7.8–8.2 mm, width 4.9–5.2 mm.

Body dark blue, antennae brown.

Vertex finely and sparsely covered with punctures; frontal tubercles distinctly raised, each separated from each other by a deep furrow; antennae short, robust, extended to the middle of the elytra; antennomeres 1–3 thin, shiny; antennomeres 4–11 wide and flat, with short hairs, antennomere 4 approximately 1.5 × as long as wide; antennomeres 5–6, each approximately 1.2 × as long as wide; the length of each of antennomeres 7–9 equals its width; antennomere 10 approximately 1.2 × as wide as long; antennomere 11 approximately 1.2 × as long as wide; antennomeres 2 and 3 shortest, antennomere 3 similar in length and shape to antennomere 2, antennomere 4 longest, 1.2 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

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

Scutellum triangular, with rounded apex, smooth, impunctate.

Bases of both elytra wider than the pronotum, gradually widen posteriorly and rounded at apex; dorsal surface slightly convex, irregularly covered with punctures, the interstices between punctures equal to diameter of individual 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 slightly longer than segment 3, three lobes.

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

Female. Length 8.0–8.2 mm, width 5.0–5.4 mm.

Antennae antennomeres 1–3 thin, shiny; antennomeres 4–11 with short hairs, antennomeres 7–11 wide and flat, each approximately 1.2 × as wide as long; apical sternite flatted.

Differential diagnosis

This species can be distinguished from other species by wide and flat antennae and the shallow impressions of the pronotum.

Distribution

China: Yunnan; Kashmir, Myanmar, India, Nepal, Bhutan, Bangladesh, Pakistan.

Figure 9. 

Sphenoraia (Sphenoraioides) rutilans 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).

Sphenoraia (Sphenoraioides) yajiangensis Jiang, 1992

Fig. 10A–F

Sphenoraia yajiangensis Jiang, 1992: 667.

Sphenoraia (Sphenoraioides) yajiangensis: Wang et al. 2000: 118.

Type specimens examined

Holotype : ♂, China, SiChuan Province, YaJiang; 3600 m; 26 Aug. 1982; Shuyong Wang leg.; IZAS. Paratypes: 3♂♂1♀, same information as holotype. Allotype: 1♀, same information as holotype.

Description

Male. Length 5.8–6.2 mm, width 3.6–4.0 mm.

Head, antennae, and legs brown, pronotum, scutellum and elytra blackish green, ventral surface of body black, elytral epipleuron from base to apical 1/3 and apex of each abdominal segment yellow.

Vertex finely and sparsely covered with punctures; frontal tubercles 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 twice as long as wide; antennomeres 5–10, each approximately 1.5 × as long as wide; antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.2 × as long as second; antennomere 4 longest, 1.7 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately twice as wide as long, with rounded lateral margins, disc slightly convex, sparsely covered in middle with small punctures with large punctures on other parts. The interstices between punctures equal to the diameter of individual punctures and lightly covered with small punctures in interstices.

Scutellum triangular, with rounded apex, covered with small punctures at base.

Bases of both elytra wider than pronotum, gradually widen posteriorly and rounded at apex; dorsal surface slightly convex, irregularly covered with large and deep punctures, the interstices between punctures equal to the diameter of individual punctures and lightly covered with small punctures in interstices.

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

Ventral surface of abdomen with five segments, segment 1 longest, segments 2–4 gradually shortened, apical segment slightly longer than segment 4, three lobes.

Aedeagus slender, parallel-sided, basally widened, apex narrowly pointed; in lateral view moderately bent.

Female. Length 5.8–6.3 mm, width 3.5–3.9 mm.

Antennal antennomeres 4–11 thin, antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.5 × as long as second; antennomere 4 longest, 1.2 × as long as antennomeres 2 and 3 combined; apical sternite flatted.

Differential diagnosis

This species can be distinguished from other species by blackish green pronotum and elytra.

Distribution

China: Sichuan.

Host plant

Berberidaceae.

Figure 10. 

Sphenoraia (Sphenoraioides) yajiangensis 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).

Sphenoraia (Sphenoraia) decemmaculatasp. nov.

https://zoobank.org/9C8B84E5-C6E1-4FE1-91EF-A1D4304CAEA3
Fig. 11A–F

Type specimens examined

Holotype : ♂, China, Yunnan Province, E’shan; Aug. 1980; IZAS. Paratype: 1♀, China, Sichuan Province, Guichang, liusuo; 10 Jun. 1961; Dingxi Lao leg.; IZAS.

Description

Male. Length 6.2 mm, width 4.5 mm.

Head and pronotum yellowish brown, antennae, scutellum, ventral surface of body and legs black, elytra yellow, each with five black spots, basal and middle areas of each elytron with one pair of spots, subapical area with one spot.

Vertex finely and sparsely covered with punctures; frontal tubercles distinctly raised, separated from each other by a deep furrow; antennae slender, extended to the middle of the elytra; antennomeres 1–3 thin, shiny; antennomeres 4–11 with short hair, antennomere 4 approximately twice as long as wide; antennomeres 5–10, each approximately 1.6 × as long as wide; antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.5 × as long as second; antennomere 4 longest, 1.2 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately twice as wide as long, with lateral margins straight and parallel, anterior angle thickened, protruding forwards, disc slightly convex and sparsely covered with small punctures.

Scutellum triangular, sparsely covered with small punctures.

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

Metasternum 2.5 × 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 slightly longer than segment 4, three lobes.

Aedeagus short and wide, parallel-sided, gradually widened apically and rounded at apex, basally widened; in lateral view strongly bent.

Female. Length 6.3 mm, width 4.4 mm.

Antennae slender, antennomeres 4–11 thin, with short hairs, antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.2 × as long as second; apical sternite flatted.

Differential diagnosis

The new species closely resembles Sphenoraia (Sphenoraioides) anjiensis but differs due to the black pronotum and yellow abdomen. In the new species the head and pronotum are brown, and each elytron has five black spots: the base and middle of each elytron with a pair of spots, the subapex with one spot. The aedeagus is short and wide, gradually widening apically and is rounded at the apex.

Etymology

Latin: deca = ten; macula = spot; referring to the ten black spots on the elytra.

Distribution

China: Sichuan, Yunnan.

Figure 11. 

Sphenoraia (Sphenoraia) decemmaculata sp. nov. 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).

Sphenoraia (Sphenoraioides) flavomarginatasp. nov.

https://zoobank.org/C0361BA0-9E50-42DB-8005-50EA1087710A
Fig. 12A–F

Type specimens examined

Holotype : ♂, China, Sichuan Province, Kangding, liuba; 3700 m; Sep. 1982; S.Y. Wang leg.; IZAS. Paratype: 3♀♀, same data as holotype.

Description

Male. Length: 5.5–6.0 mm, width: 2.8–3.5 mm.

Antennae, ventral surface of the body, and legs brown. Head, pronotum, scutellum, and elytra blackish green, apical area of each segment of the abdomen yellow, elytra with yellow stripes along the basal margin, extending along the elytral epipleuron from the base to the apical 1/3, with one transverse yellow stripe at subapex.

Vertex finely and sparsely covered with punctures; frontal tubercles distinctly raised, separated from each other by a deep furrow; antennae short, robust, extend to the middle of the elytra; antennomeres 1–3 thin, shiny; antennomeres 4–11 wide and flat, with short hairs, antennomere 4 approximately 3 × as long as wide; antennomeres 5–10, each approximately 2 × as long as wide; antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.2 × as long as second; antennomere 4 longest, 1.5 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 gradually shortened, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately twice as wide as long, with rounded lateral margins; disc slightly convex, sparsely covered with small punctures in the middle with large punctures on other parts of pronotum. The interstices of punctures equal to diameter of punctures slightly, covered with small punctures.

Scutellum triangular, with rounded apex, covered with small punctures and short hairs.

Bases of both elytra wider than pronotum, gradually widen posteriorly and rounded at apex; dorsal surface slightly convex, irregularly covered with large and deep punctures, the interstices between punctures equal to the diameter of individual punctures and lightly covered with small punctures in interstices.

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 slightly longer than segment 4, three lobes.

Aedeagus slender, parallel-sided, basally widened, apex narrowly pointed; in lateral view moderately bent.

Female. Length: 5.4–6.0 mm, width: 2.9–3.6 mm.

Antennae slender, antennomeres 4–11 thin, antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.2 × as long as second; apical sternite flatted.

Differential diagnosis

The new species closely resembles Sphenoraia (Sphenoraioides) yajiangensis. However, the new species has a different pattern in the arrangement of the yellow stripes, with one transverse yellow stripe present at the subapex of the elytra, and the pronotum has sparse punctures. The aedeagus is slender, and its apex narrowly pointed.

Etymology

Latin: flava = yellow; margin = margin; referring to each elytron with a yellow margin.

Distribution

China: Sichuan.

Figure 12. 

Sphenoraia (Sphenoraioides) flavomarginata sp. nov. 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).

Gallerucida cupreata (Jacoby, 1890), comb. nov.

Fig. 13 A–C

Sphenoraia cupreata Jacoby, 1890, 23: 193.

Type specimen examined

Chang Yang, A. E. Pratt Coll., June 1888; 1st Jacoby Coll.; Type 18239; S. cupreata Jac.

Description

Male. Length 4.4 mm, width 3.2 mm

Head, pronotum, elytra, and scutellum green, antennae and legs brown, ventral surface of body yellowish 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, antennomeres 2 and 3 shortest, antennomere 3 similar in length and shape to antennomere 2, 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 2.5 × as wide as long, with rounded lateral margins; disc sparsely covered with punctures, with a lateral pair of shallow impressions.

Scutellum triangular, covered with small punctures.

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

Metasternum 2.5 × as long as mesosternum, Anterior metasternal process extending beyond the front edge of the meso-coxal cavities; prothoracic legs shortest, mesothoracic legs slightly longer, metathoracic legs longest.

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

Notes

According to the characteristics of the cylindrical process of the metasternum, Sphenoraia (Sphenoraia) cupreata is transferred from Sphenoraia to Gallerucida.

Distribution

China: Hubei.

Figure 13. 

Gallerucida cupreata. comb. nov. A–C habitus A dorsal view B ventral view C lateral view. Scale bars: 2 mm.

Gallerucida nigra (Wang, Li & Yang, 2000), comb. nov.

Fig. 14A–C

Sphenoraia (Sphenoraia) nigra Wang, Li & Yang, 2000: 118.

Type specimens examined

Holotype : ♀, China, Gansu Province, Dangchang; 1700–2300 m; 9 Jul. 1998; Shuyong Wang leg.; IZAS. Paratype: 1♀, China, Gansu Province, Wen Country; 1400 m; 2 Jun. 1992; Hongjian Wang leg.; IZAS. 1♀, China, Gansu Province, Zhouqu; 2350 m; 5 Jul. 1998; Jun Chen; IZAS.

Other specimens examined

1♀, China, Henan, Baiyun Mountain; 1900 m; 23. Jul. 2002; Lijie Zhang leg.; IZAS.

Description

Female. Length: 6.6–6.8 mm, width: 4.0–4.5 mm.

Head, antennae, pronotum, scutellum, ventral surface of the body, and legs black, elytra brown; each elytron with eight black spots, basal and middle sections with one pair of spots, subapical area with three spots and apical area with one spot.

Vertex finely and sparsely covered with punctures; frontal tubercles distinctly raised, separated from each other by a deep furrow; antennae short, robust, extend to the middle of the elytra; antennomeres 1–3 thin, shiny; antennomeres 4–11 wide and flat, with short hairs, each approximately 2.5 × as long as wide; antennomere 2 shortest, antennomere 3 slightly longer than 2, 1.5 × as long as second; antennomere 4 longest, 1.2 × as long as antennomeres 2 and 3 combined; antennomeres 5–10 unequal in length, shorter than 4; antennomere 11 slightly longer than 10, pointed.

Pronotum approximately 1.8 × as wide as long, with rounded lateral margins; disc slightly convex, sparsely covered in middle with small punctures with large punctures laterally.

Scutellum triangular, smooth, impunctate.

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

Metasternum 2.5 × as long as mesosternum, Anterior metasternal process extending beyond the front edge of the meso-coxal cavities; prothoracic legs shortest, mesothoracic legs slightly longer, metathoracic legs longest.

Notes

According to the anterior metasternal process clearly extending beyond the front edge of the meso-coxal cavities, Sphenoraia (Sphenoraia) nigra is transferred from Sphenoraia to Gallerucida.

Distribution

China: Henan, Gansu.

Figure 14. 

Gallerucida nigra. comb. nov. A–C habitus A dorsal view B ventral view C lateral view. Scale bars: 1 mm.

Acknowledgements

We extend our heartfelt gratitude to Prof. Derek Dunn for revising this manuscript. This study was supported by the GDAS Special Project of Science and Technology Development (Grant Nos. 2020GDASYL-20200301003, 2020GDASYL-20200102021).

References

  • Allard E (1890) Troisième note sur les galérucides. Bulletin ou Comptes-rendus des Séances de la Société Entomologique de Belgique 80–94.
  • Chûjô M (1956) A taxonomic study on the Chrysomelidae (Insecta: Coleoptera) from Formosa Part VIII. Subfamily Eumolpinae. Philippine Journal of Science 85: 1–180.
  • Clark H (1865) An examination of the Dejeanian genus Caelomera (Coleoptera Phytophaga) and its affinities. Annals & Magazine of Natural History 15(3): 256–268. https://doi.org/10.1080/00222936508679421
  • Duvivier A (1887) Description de trois Galerucindes nouvelles. Bulletin ou Comptes-Rendus des Séances de la Société Entomologique de Belgique 1887: 47–50.
  • Fairmaire L (1888) Coléopterès de l’interieur de la Chine (Suite.). Annales de la Société Entomologique de Belgique 32: 7–46.
  • Gressitt JL, Kimoto S (1963) The Chrysomelidae (Coleopt.) of China and Korea. Part II. Pacific Insects Monograph 1B: 301–1026.
  • Harold E von (1880) Über ostindische Galeruciden. Stettiner Entomologische Zeitung (41): 142–157.
  • Hope FW (1831) Synopsis of the new species of Nepaul insects in the collection of Major General Hardwicke. In: Gray JE (Ed.) Zoological Miscellany. Vol. 1, London, 21–32. [40 pp]
  • Jacoby M (1890) Descriptions of new species of phytophagous Coleoptera received by Mr. J. H. Leech, from Chang-Yang, China. The Entomologist 23, 84–89, 114–118, 161–167, 193–197, 214–217, 253–254, 2 pls.
  • Jiang S-Q (1992) Coleoptera: Chrysomelidae: Galerucinae. Science Press, 646–674.
  • Kimoto S (1986) New or little known Chrysomelidae (Coleoptera) from Japan and its adjacent regions, 4. Coleopterists’ Association of Japan, Tokyo, 309–313.
  • Kollar V, Redtenbacher L (1844) Aufzählung und Beschreibung der von Freiherrn Carl v. Hügel auf seiner Reise durch Kaschmir und das Himalayagebirge gesammelten Insecten. [393–564] In: Hügel KF von (Ed.) Kaschmir und das Reich der Siek. Vierter Band, Zweite Abtheilung. Hallbergerischer Verlag, Stuttgart, 244–586.
  • Laboissière V (1925) Supplément au Catalogus Coleopterorum, pars 78 (Galerucinae) de J. Weise, précédé de remarques aur la classification des Galerucini. Encyclopédie Entomologique (B) 1: 38–62.
  • Laboissière V (1934) Coléoptères galérucines nouveaux ou peu connus de la faune indo-malaise. Annales deI’Association des Naturalistes de Levallois-Perret 21(1932–1934): 109–137.
  • Laboissière V (1940) Observations sur les Galeruoinae des collections du Musée royal d’Histoire naturelle de Belgique et descriptions de nouveaux genres et espèces. Bulletin du Musée d’Histoire Naturelle de Belgique 16(37): 1–41.
  • Maulik S (1936) The Fauna of British India, including Ceylon and Burma. Coleoptera. Chrysomelidae (Galerucinae). Taylor & Francis, London, [xiv +] 648 pp. [1 pl.] https://doi.org/10.5962/bhl.title.48423
  • Nie R-E, Bezdek J, Yang X-K (2017) How many genera and species of Galerucinae s. str. do we know? Updated statistics (Coleoptera, Chrysomelidae). ZooKeys 720: 91–102. https://doi.org/10.3897/zookeys.720.13517
  • Wang H-J, Li W-Z, Yang X-K (2000) Study on the genus Sphenoraia Clark (Coleoptera: Chrysomelidae: Galerucinae) from China. China Agriculture Press, Beijing, 117–121.
  • Weise J (1922) Chrysomeliden der Indo-Malayischen Region. Tijdschrift voor Entomologie 65: 39–130.
  • Wilcox JA (1971) Chrysomelidae: Galerucinae. (Oidini, Galerucini, Metacyclini, Sermylini). In: Wilcox JA (Ed.) Coleopterorum Catalogus Supplementa. Pars 78(1), 2nd edn. W. Junk, s-Gravenhage, 220 pp.
  • Yang X-K, Li W-Z, Wu H (1998) Coleoptera: Chrysomelidae: Galerucinae. China Forestry Publishing House, Beijing, 128–135.
  • Yang X-K, Ge S-Q, Nie R-E, Ruan Y-Y, Li W-Z (2015) Chinese Leaf Beetles. Science Press, Beijing, 507 pp.
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