Aplosonyx ornatus Jacoby, 1892

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 ornatus Jacoby, 1892

Figs 11F , 17A-C , 18A-F

Haplosonyx ornata Jacoby, 1892: 963.

Aplosonyx ornata : Maulik, 1936: 622.

Type specimen examined.

♂ Haploson. ornata Jac.; Carin Chebà, 900-1100 m, L. Fea V XII-88; Jacoby Coll., 1909-28a.; syntype, NHMUK014596214.

Additional specimens examined.

♀, China, Yunnan Province, Xishuangbanna, Menga ; 1050 m a. s. l.; 17 May 1958; Shuyong Wang leg.; IZAS; IOZ(E)1566589 . ♀, China, Yunnan Province, Xishuangbanna, Menga ; 1050 m a. s. l.; 12 May 1958; Shuyong Wang leg.; IZAS; IOZ(E)1566595 . ♂, China, Yunnan Province, Xishuangbanna, Menga ; 1080 m a. s. l.; 2 Jun. 1958; Fuji Pu leg.; IZAS; IOZ(E)1566596 . ♂, China, Yunnan Province, Xishuangbanna, Menga ; 1050 m a. s. l.; 2 Jun. 1958; Fuji Pu leg.; IZAS; IOZ(E)1566597 . ♂, China, Yunnan Province, Xishuangbanna, Menga ; 1050 m a. s. l.; 2 Jun. 1958; Fuji Pu leg.; IZAS; IOZ(E)1566596 . ♂, China, Yunnan Province, Xishuangbanna, Menga ; 1080 m a. s. l.; 2 Jun. 1958; Fuji Pu leg.; IZAS; IOZ(E)1566601 . ♀, China, Yunnan Province, Xishuangbanna, Menghai , nuoshan; 1600 m a. s. l.; 24 Jul. 1958; Shuyong Wang leg.; IZAS; IOZ(E)1566613 . 1♂ 1♀, China, Yunnan Province, Xishuangbanna, Menghai , nuoshan; 1200 m a. s. l.; 24 Apr. 1957; Lingchao Zang leg.; IZAS; IOZ(E)1566598 . 1♂ 1♀, China, Yunnan Province, Xishuangbanna, Menghai , nuoshan; 1200 m a. s. l.; 28 Apr. 1957; Lingchao Zang leg.; IZAS; IOZ(E)1566600 . 2♀♀, China, Yunnan Province, Xishuangbanna, Menghai , nuoshan; 1200 m a. s. l.; 24 Apr. 1957; Lingchao Zang leg.; IZAS; IOZ(E)1566617 . ♀, China, Yunnan Province, Xishuangbanna, Menghun ; 1400 m a. s. l.; 17 May 1958; Chunpei Hong leg.; IZAS; IOZ(E)1566590 . ♂, China, Yunnan Province, Xishuangbanna, Menghun ; 1200 m a. s. l.; 24 May 1958; Chunpei Hong leg.; IZAS; IOZ(E)1566591 . ♂, China, Yunnan Province, Xishuangbanna, Menghun ; 1200 m- 1400 m a. s. l.; 19 May 1958; Yiran Zhang leg.; IZAS; IOZ(E)1566593 . ♀, China, Yunnan Province, Xishuangbanna, Menghun ; 1200 m a. s. l.; 21 May 1958; Xuwu Meng leg.; IZAS; IOZ(E)1566614 . ♀, China, Yunnan Province, kunluo; 1050 m a. s. l.; 26 Apr. 1957; Qiuzhen Liang leg.; IZAS; IOZ(E)1566610 .

Diagnosis.

This species can be distinguished from the other species by its black pronotum and yellow elytra with a broad blackish band in the middle, which extends along the suture and onto the base.

Redescription.

Male. Length 4.6-5.4 mm, width 3.0-3.4 mm.

Head, antennae, pronotum, scutellum ventral surface of body black or brown; elytra yellow with a broad blackish band in middle, which extends along suture and expends on base.

Vertex finely covered with punctures. Interocular space 1.6 × as wide as transverse diameter of eye. Interantennal space 1.2 × as wide as transverse diameter of antennal socket. Frontal tubercles distinctly raised, hook-like, each separated by a deep furrow; antennae slender, 0.75 × as long as body; antennomeres 1-3 shiny; antennomeres 4-11 covered with pubescence, antennomere 2 shortest, antennomere 3 approximately 1.6 × 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 1.5 × as wide as long, lateral border margined, widest at posterior corners; disc with deep transverse furrow, sparsely covered with large punctures in furrow.

Scutellum triangular, finely covered with punctures.

Elytra wider than pronotum, 0.75 × as long as body, 1.8 × as long as wide, epipleura wide at anterior 1/3, posteriorly gradually narrowing towards apex, dorsal surface slightly convex, regularly covered with large and deep punctures, partially arranged in ten rows in each elytron, the interstices between punctures wider than diameter of individual punctures, 2 × as wide as the diameter of individual punctures and lightly covered with small punctures in interstices.

Metasternum 2 × as long as the 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, middle slightly narrowed, apex pointed, in lateral view obviously bent.

Female. Length 4.8-5.5 mm, width 2.8-3.2 mm.

Antennae slightly thinner than in male, antennomere 2 shortest, antennomere 3 longer than antennomere 2, twice as long as second; antennomere 4 longest, 1.6 × as long as antennomeres 2 and 3 combined; apical sternite without incisions.

Distribution.

China: Yunnan; Laos, Myanmar.

Figures

Figure 11. Aedeagus in dorsal view A A. fulvescens B A. gancuicus C A. nigriceps D A. omeiensis E A. orientalis F A. ornatus. Scale bars: 0.5 mm (A-E).

Figure 17. Aplosonyx ornatus A-C habitus of syntype, NHMUK 014596214 A dorsal view B head view C lateral view. Scale bar: 1 mm (A-C).

Figure 18. Aplosonyx ornatus 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).