Aplosonyx rufipennis Duvivier, 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 rufipennis Duvivier, 1892

Figs 20C , 23A-D , 24A-F

Haplosonyx rufipennis Duvivier, 1892: 439.

Aplosonyx rufipennis : Laboissière 1934: 110.

Aplosonyx rubra Maulik, 1936: 620. Synonymized by Laboissière 1940: 21.

Type specimen examined.

♂ Syntype of Aplosonyx rubra : Doherty, 64478, Birmah Ruby Mes; Fry Coll., 1905. 100; Aplosonyx rubra M.; S. Maulik; Type 1935, NHMUK015014024.

Additional specimens examined.

♀, China, Yunnan Province, Pingbian ; 700 m a. s. l.; 29 Jun. 1956; Bangfeiluofu leg.; IZAS; IOZ(E)1566821 . ♂, China, Yunnan Province, Hekou ; 80 m a. s. l.; 5 Jun. 1956; Keren Huang leg.; IZAS; IOZ(E)1566825 . ♀, China, Yunnan Province, Pingbian ; 800 m a. s. l.; 20 Jun. 1979; Baowen Zhang leg.; IZAS; IOZ(E)1566832 . ♂, China, Yunnan Province; 1956; IOZ(E)1566822 . ♀, China, Yunnan Province; 1956; IOZ(E)1566823 . ♀, same data as for preceding; IOZ(E)1566824 .

Diagnosis.

This species can be distinguished from other species by its black head and pronotum, and the reddish brown elytra without any spots.

Redescription.

Male. Length 8.4-10.6 mm, width 5.2-6.0 mm.

Head, antennae, pronotum, scutellum and leg black, elytra reddish brown, ventral surface of thorax yellow with lateral area black, abdomen yellow.

Vertex finely covered with punctures. Interocular space 1.6 × as wide as transverse diameter of eye. Interantennal space 1.5 × as wide as transverse diameter of antennal socket. Frontal tubercles transverse, each separated by a deep furrow; antennae slender, 0.65 × as long as body; antennomeres 1-3 shiny; antennomeres 4-11 covered with pubescence, antennomere 2 shortest, antennomere 3 approximately 1.5 × 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 1.8 × as wide as long, lateral border margined, widest at posterior corners; disc with deep transverse furrow, less distinct, smooth and impunctate in middle; covered with several 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, 1.65 × as long as wide, epipleura wide at anterior 1/4, posteriorly gradually narrowing towards apex, dorsal surface convex slightly, covered with large punctures regularly, partially arranged in ten rows in each elytron, the interstices of punctures wider than diameter of punctures, approximately 2 × as wide as diameter of punctures, covered with small punctures.

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

Female. Length 9.2-10.5 mm, width 4.8-5.6 mm.

Antennomere 2 shortest, antennomere 3 longer than antennomere 2, twice as long as second; antennomere 4 longest, slightly long than antennomeres 2 and 3 combined; apical sternite without incisions.

Distribution.

China: Shanghai, Yunnan; Vietnam, India.

Figures

Figure 20. Aedeagus (dorsal view) A A. pictus B A. robinsoni C A. rufipennis D A. sublaevicollis F A. tianpingshanensis E A. yunlongensis. Scale bars 0.5 mm (A-F).

Figure 23. Aplosonyx rufipennis A, B habitus of syntype, NHMUK 015014024 C, D aedeagus A, C dorsal views B ventral views D lateral views. Scale bars 0.5 mm (C, D); 1 mm (A, B).

Figure 24. Aplosonyx rufipennis 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).