Aplosonyx emeishanicus (Lopatin, 2005)

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 emeishanicus (Lopatin, 2005)

Figs 2E , 8A-F

Gallerucida emeishanica Lopatin, 2005: 877.

Aplosonyx metallicus Chen in Zhang et al. 2008: 65. Synonymized by Bezděk 2012: 383.

Aplosonyx emeishanica : Bezděk 2012: 383.

Additional specimens examined.

♂, China, Sichuan Province, Mount Emei ; 18 Jun. 1955; Keren Huang leg.; IZAS; IOZ(E)1566815 . ♀, same data as for preceding; IOZ(E)1566561 . ♀, same data as for preceding; IOZ(E)1566576 . ♀, same data as for preceding; IOZ(E)1566816 . ♂, same data as for preceding; IOZ(E)1566568 . ♂, same data as for preceding; IOZ(E)1566571 . ♂, same data as for preceding; IOZ(E)1566578 . ♂, same data as for preceding; IOZ(E)1566565 . ♂, same data as for preceding; IOZ(E)1566566 . ♂, same data as for preceding; IOZ(E)1566584 . ♂, same data as for preceding; IOZ(E)1566585 . ♂, same data as for preceding; IOZ(E)1566586 . ♂, China, Sichuan Province, Mount Emei ; 24 Jun. 1955; Le Wu leg.; IZAS; IOZ(E)1566574 . ♂, same data as for preceding; IOZ(E)1566576 . ♂, China, Sichuan Province, Mount Emei ; 1600 m- 2100 m a. s. l.; 24 Jun. 1955; Bingrong Ou leg.; IZAS; IOZ(E)1566574 . ♀, China, Sichuan Province, Mount Emei, Jiulaodong ; 1900 m a. s. l.; 22 Jul. 1957; Keren Huang leg.; IZAS; IOZ(E)1566793 . ♀, China, Sichuan Province, Mount Emei, Jiulaodong ; 1800 m a. s. l.; 22 Jul. 1957; Keren Huang leg.; IZAS; IOZ(E)1566794 . ♂, China, Sichuan Province, Mount Emei, Jiulaodong ; 9 Jul. 1957; Zongyuan Wang leg.; IZAS; IOZ(E)1566811 . ♀, same data as for preceding; IOZ(E)1566812 .

Diagnosis.

This species can be distinguished from other Chinese species by the dark bluish green color of the head, pronotum, and elytra.

Redescription.

Male. Length 4.4-4.8 mm, width 2.6-3.0 mm.

Head, pronotum, scutellum, and ventral surface of body green, antennae and legs brown, elytra dark bluish green with apex cupreous.

Vertex covered with several large punctures. Interocular space 2.3 × as wide as transverse diameter of eye. Interantennal space 1.4 × as wide as transverse diameter of antennal socket. Frontal tubercles transverse, each separated by a deep furrow; antennae slender, 0.85 × 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 1.2 × 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 1.6 × as wide as long, lateral border margined, widest at anterior 1/3, disc with transverse furrow, finely covered with punctures, only with several large punctures in furrow.

Scutellum triangular, smooth, impunctate.

Elytra wider than pronotum, 0.8 × as long as body, 1.65 × as long as wide, epipleura wide at anterior 1/3, posteriorly gradually narrowing towards apex, dorsal surface slightly convex, regularly covered with punctures, partially arranged in ten rows in each elytron, interstices between punctures approximately 3.5 × as wide as diameter of individual punctures and lightly covered with small punctures.

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, middle narrowed, apex pointed, in lateral view base and apex slightly bent.

Female. Length 4.4-5.0 mm, width 2.5-3.0 mm.

Antennae slightly thinner than in male, antennomere 2 shortest, antennomere 3 approximately 1.2 × as long as second; antennomere 4 longest, 1.5 × as long as antennomeres 2 and 3 combined; apical sternite without incisions.

Distribution.

China: Sichuan.

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 8. Aplosonyx emeishanica 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).