Aplosonyx cinctus Chen, 1964

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 cinctus Chen, 1964

Figs 2C , 5A-F

Aplosonyx cinctus Chen 1964: 203.

Type specimens examined.

Holotype: ♀, China, Yunnan province, Jinping, Changpotou ; 1200 m a. s. l.; 23 May 1956; Keren Huang leg.; IZAS; IOZ(E)215623 .

Paratype: ♀, same data as for holotype; IOZ(E)215624 .

Additional specimens examined.

♂, China, Yunnan province, Xishuangbanna, Damenglong ; 650 m a. s. l.; 4 May 1958; Chunpei Hong leg.; IZAS; IOZ(E)1566412 . ♂, same data as for preceding; 6 May 1958; Fuji Pu leg.; IZAS; IOZ(E)1566413 . ♂, same data as for preceding; 6 May 1958; Fuji Pu leg.; IZAS; IOZ(E)1566414 . ♂, same data as for preceding; 6 May 1958; Shuyong Wang leg.; IZAS; IOZ(E)1566418 . ♂, same data as for preceding; 6 Oct. 1958; Zhizi Chen leg.; IZAS; IOZ(E)1566419 . ♂, same data as for preceding; 4 May 1958; Chunpei Hong leg.; IZAS; IOZ(E)1566420 . ♀, China, Yunnan province, Xishuangbanna, Mengzhe ; 870 m a. s. l.; 5 Sep. 1958; Fuji Pu leg.; IZAS; IOZ(E)1566421 . ♂, China, Yunnan province, Xishuangbanna, Damenglong ; 650 m a. s. l.; 6 May 1958; Fuji Pu leg.; IZAS; IOZ(E)1566422 . ♂, same data as for preceding; Chunpei Hong leg.; IZAS; IOZ(E)1566423 . ♂, China, Yunnan province, Xishuangbanna, Damenglong ; 650 m a. s. l.; 6 May 1958; Leyi Zheng leg.; IZAS; IOZ(E)1566424 . ♀, China, Yunnan province, Xishuangbanna, Mengzhe ; 870 m a. s. l.; 8 Jul. 1958; Shuyong Wang leg.; IZAS; IOZ(E)1566425 . ♀, China, Yunnan province, Xishuangbanna, Damenglong ; 650 m a. s. l.; 6 May 1958; Shuyong Wang leg.; IZAS; IOZ(E)1566393 . ♀, same data as for preceding; 4 Oct. 1958; Zhizi Chen leg.; IZAS; IOZ(E)1566395 . ♀, same data as for preceding; 4 Oct. 1958; Zhizi Chen leg.; IZAS; IOZ(E)1566396 . ♀, China, Yunnan province, Xishuangbanna, Mengzhe ; 870 m a. s. l.; 10 Jul. 1958; Shuyong Wang leg.; IZAS; IOZ(E)1566397 . ♀, same data as for preceding; IOZ(E)1566398 . ♀, same data as for preceding; IOZ(E)1566399 .

Diagnosis.

This species can be distinguished from other congeners by the black pronotum and elytra, all margins of pronotum and elytra yellow, including the yellow suture. This species differs from A. orientalis in the color of the body, the slender aedeagus, and in lateral view the apex is strongly bent.

Redescription.

Male. Length 9.0-10.2 mm, width 5.0-6.0 mm.

Head and abdomen yellow, antennae and ventral surface of thorax black, elytra black with all margins yellow, including the suture of elytra; scutellum black with apex yellow; femur and tibia outside black inside yellow, tarsus and claws brown.

Vertex finely covered with punctures. Interocular space 2.2 × as wide as transverse diameter of eye. Interantennal space 1.7 × as wide as transverse diameter of antennal socket. Frontal tubercles distinctly raised, hook-like, each separated by a deep furrow; antennae slender, 0.7 × as long as body; antennomeres 1-3 shiny; antennomeres 4-11 covered with pubescence, antennomere 2 shortest, antennomere 3 approximately 1.2 × as long as second; antennomere 4 longest, approximately 1.8 × 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 2 × as wide as long, lateral border margined, widest at posterior corners, disc with deep transverse furrow, less distinct in middle; closely covered with large punctures in furrow and with sparsely small punctures in other parts of pronotum.

Scutellum triangular, finely covered with punctures.

Elytra wider than pronotum, 0.75 × as long as body, 1.6 × as long as wide, epipleura wide at anterior 1/4, posteriorly gradually narrowing towards apex, dorsal surface slightly convex, irregularly covered with punctures, the interstices of punctures lightly wider than diameter of individual punctures and covered with small punctures in the 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, slightly narrowed in middle, strongly narrowing in apical tenth, ending in pointed apex, in lateral view apex strongly bent.

Female. Length 9.6-10.4 mm, width 5.0-5.8 mm.

Antennae slightly thinner than in male, antennomere 2 shortest, antennomere 3 twice as long as second; antennomere 4 longest, 1.7 × as long as antennomeres 2 and 3 combined; apical sternite without incisions.

Distribution.

China: Yunnan.

Figures

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).

Figure 5. Aplosonyx cinctus A-C habitus of holotype, IZAS D-F aedeagus A, D dorsal view B, E ventral view C, F lateral view. Scale bars 0.5 mm (D-F); 1 mm (A-C).