Aplosonyx ancora Laboissiere , 1934

Feng, Chuan, Yang, Xing-Ke, Liu, Yang & Li, Zhi-Qiang, 2023, Revision of Aplosonyx Chevrolat, 1836 (Coleoptera, Chrysomelidae, Galerucinae) from China, with descriptions of three new species, ZooKeys 1154, pp. 159-222 : 159

Aplosonyx ancora Laboissiere, 1934

Figs 1A-F , 2A

Aplosonyx ancora Laboissière, 1934: 110.

Aplosonyx ancora ancora : Chen 1964: 204.

Specimens examined.

3♂♂ 2♀♀, China, Guangdong Province, Nanling, Chengjia ; 720 m a. s. l.; 26 May 2022; Chuang Feng leg.; IZGAS . 1♂ 2♀♀, China, Guangdong Province, same data as for preceding; 31 May 2022; Chuang Feng leg.; IZGAS . 3♂♂ 4♀♀, China, Guangdong Province, Foshan, Lutian ; 1 Sept 2021; Zulong Liang leg.; IZGAS . ♀, China, Guangxi Province, Jinxiu, Luoxiang ; 400 m a. s. l.; 15 May 1999; Decheng Yuan leg.; IZAS; IOZ(E)1566707 . ♀, same data as for preceding; 400 m a. s. l.; 15 May 1999; Yanzhou Zhang leg.; IZAS; IOZ(E)1566708 . ♀, China, Guangxi Province, Napo ; 440 m a. s. l.; 7 Apr. 1998; Wenzhu Li leg.; IZAS; IOZ(E)1566709 . ♀, China, Guangxi Province, Longrui ; 20 May 1984; Shimei Song leg.; IZAS; IOZ(E)1566744 . ♀, same data as for preceding, IZAS; IOZ(E)1566735 . ♂, China, Guangxi Province, Longzhou ; 200 m a. s. l.; 26 Mar. 1998; Chaodong Zhu leg.; IZAS; IOZ(E)1566713 . ♀, China, Guangxi Province, Napo, Beidou ; 550 m a. s. l.; 12 Apr. 1998 Chunsheng Wu leg.; IZAS; IOZ(E)1566714 . ♂, China, Guangxi Province, Napo, Beidou ; 550 m a. s. l.; 12 Apr. 1998 Chunsheng Wu leg.; IZAS; IOZ(E)1566719 . ♂, China, Guangxi Province, Napo, Baihe ; 440 m a. s. l.; 7 Apr. 1998; Chunsheng Wu leg.; IZAS; IOZ(E)1566715 . ♀, China, Guangxi Province, Napo, Beidou ; 550 m a. s. l.; 12 Apr. 1998 Chunsheng Wu leg.; IZAS; IOZ(E)1566718 . ♀, China, Guangxi Province, Jinxiu, Luoxiang ; 400 m a. s. l.; 14 Apr. 1994; Wenzhu Li leg.; IZAS; IOZ(E)1566717 . ♀, same data as for preceding; 15 May 1999; Fusheng Huang leg.; IZAS; IOZ(E)1566720 . ♀, same data as for preceding; 15 May 1999; Decheng Yuan leg.; IZAS; IOZ(E)1566721 . ♀, China, Yunnan Province, Xishuangbanna, Yunjinghong ; 710 m a. s. l.; 29 Apr. 1958; Yiran Zhang leg.; IZAS; IOZ(E)1566749 . ♀, same data as for preceding; 800 m a. s. l.; 29 Apr. 1958; Leyi Zheng leg.; IZAS; IOZ(E)1566745 . ♂, China, Yunnan Province, Xishuangbanna, Menga ; 18 Apr. 1982; Subai Liao leg.; IOZ(E)1566748 .

Diagnosis.

This species differs from A. fulvescens Chen in the antennae with antennomeres 1-6 yellow and antennomeres 7-11 brown, pronotum and elytron densely covered with large punctures, and the aedeagus apex is distinctly pointed. However, the pronotum and elytron of A. fulvescens are sparsely covered with punctures, the antennae are brown with antennomeres 1-3 yellow, and the aedeagus is narrowed in the middle with its apex slightly pointed; in lateral view the apex is strongly bent. This species differs from A. ancorella sp. nov. in the abdomen having no black spots, and the interstices of punctures in the elytron not being wrinkled.

Redescription.

Male. Length 9.8-12.6 mm, width 5.8-6.6 mm.

Head, pronotum, abdomen, and leg orange, elytra orange or reddish brown, antennae with antennomeres 1-6 yellow and antennomeres 7-11 brown, scutellum black, ventral surface of the thorax black with yellow middle, pronotum with single purple or black spot at base, elytron with a broad purplish band from anterior to middle, extending forward along suture and expanding again on base.

Vertex finely and sparsely covered with punctures. Interocular space 2 × as wide as transverse diameter of eye. Interantennal space 1.3 × as wide as transverse diameter of antennal socket. Frontal tubercles transverse, distinctly raised, each separated by a deep furrow; antennae slender, extended to the middle of the elytra, 0.75 × as long as body; antennomeres 1-3 shiny; antennomeres 4-11 covered with pubescence, antennomere 2 shortest, antennomere 3 longer than antennomere 2, approximately 1.8 × as long as second; antennomere 4 longest, approximately 1.5 × as long as antennomeres 2 and 3 combined; antennomeres 5-10 gradually shortened, shorter than antennomere 4; antennomere 11 slightly longer than antennomere 10, pointed.

Pronotum approximately 2 × as wide as long, lateral border margined, widest at anterior 1/3; disc with transverse furrow, densely covered with large punctures, the interstices of punctures slightly narrower than diameter of punctures, with sparse small punctures in base and apex area of pronotum.

Scutellum triangular, finely covered with punctures.

Elytra wider than pronotum, 0.8 × as long as body, 1.6 × as long as wide, epipleura basally widened, dorsal surface slightly convex, irregularly covered with large and deep punctures, the interstices of punctures narrower than diameter of punctures and lightly covered with small punctures in interstices.

Metasternum 2 × as long as mesosternum. Ventral surface of abdomen with five ventrites, ventrite 1 longest, ventrites 2-4 gradually shortened, apical ventrite slightly longer than ventrite 3, with two subtriangular incisions.

Aedeagus slender, parallel-sided, basally widened, apex pointed, in lateral view slightly bent.

Female. Length 9.6-13.2 mm, width 5.6-6.7 mm.

Antennae slightly thinner than in male, antennomere 2 shortest, antennomere 3 approximately 2.5 × as long as second; antennomere 4 longest, 1.2 × as long as antennomeres 2 and 3 combined; apical sternite without incisions.

Distribution.

China: Fujian, Guangdong, Guangxi, Yunnan; Vietnam.

Figures

Figure 1. Aplosonyx ancora A-C habitus D-F aedeagus A, D dorsal views B, E ventral views C, F lateral views. Scale bars 0.5 mm (D-F); 1 mm (A-C).

Figure 2. Aedeagus in dorsal view A A. ancora B A. chalybeus C A. cinctus D A. duvivieri F A. emeishanicus E A. flavipennis. Scale bars: 0.5 mm (A-E).