Sinoluperus subcostatus Gressitt & Kimoto, 1963

Yang, Hai-Dong, Feng, Chuan & Yang, Xing-Ke, 2024, A review of the leaf-beetle genus Sinoluperus Gressitt & Kimoto, 1963 (Coleoptera, Chrysomelidae, Galerucinae) from China, with the description of a new species, ZooKeys 1200, pp. 231-243 : 231-243

Sinoluperus subcostatus Gressitt & Kimoto, 1963

Figs 1 B , 5 , 6 , 7 , 8

Sinoluperus subcostatus Gressitt and Kimoto 1963: 584. TL: China, Jiangxi. TD: CAS.

Type specimens examined.

Holotype: ♂. Hong San, SE Kiangsi Prov, China, 16. Jul. 1936, Gressitt leg., CAS 8509 . Paratypes: ♀. Szechuan, W. China, Pe-pei ,, 28. Jul. 1940, Gressitt; 300 m a. s. l. Brit. Mus. 1963 - 245 . ♂. China, Hainan Province, Tai-pin (Dwa-bi) , 325 m a. s. l., 22 Jul. 1935, Gressitt leg., IZAS .

Additional specimens examined.

1 ♀, China, Hunan Province, Yizhang, Mangshan National Nature Reserve , chawanggu, 25 Aug 2020, Siyuan Xu leg., IZGAS .

Description.

Male. Length 4.8–5.2 mm. Body ochraceous, apical half of tibia, tarsus, and claw reddish brown. In the paratype in IZCAS, head, pronotum, scutellum, ventral surface of body, femur, and base of tibia yellow; antennae black-brown with antennomeres 1 and 2 yellow, elytra black-brown with reddish brown at apex. Apical half of tibia, tarsus, and claw brown.

Vertex covered with closed punctures. Frontal tubercles transverse. Antennae longer than body. Antennomeres 1 bare, rod-shaped, antennomeres 2–11 with short hairs, antennomere 2 shortest, antennomere 3 ~ 3.7 × as long as antennomere 2; antennomere 4 ~ 1.4 × as long as antennomere 3, antennomeres 5–11 equal in length, and slightly shorter than antennomere 4.

Pronotum ~ 1.4 × as wide as long, anterior margin straight; basal margin slightly convex, lateral margins straight at base and slightly rounded at apex, anterior angle projecting, basal angle obtuse, disc convex, with sparse punctures.

Scutellum triangular, with several small punctures.

Elytra wider than pronotum basally, humeri strongly convex, lateral margins of elytra gradually widened posteriorly. Elytra disc with 10 shallow longitudinal grooves and covered with small punctures, the interstices of punctures equal with diameter of individual puncture. Epipleuron broad basally, strongly narrowed at middle, gradually narrowed from middle to apex. Leg strong, each tibia with a distinct spur at apex.

Aedeagus robust, in ventral view, with sides slightly dilating near apex; apical protrusions short-cone-shaped, close to each other.

Female. Length 5.2–5.5 mm. Head reddish brown; Antennae reddish brown with antennomeres 1–3 yellow, pronotum, scutellum, ventral surface of body, femur, and base of tibia brown or yellowish brown; apical half of tibia, tarsus, claw reddish brown.

Distribution.

China: Zhejiang, Jiangxi, Hongkong, Guangdong, Hainan, Sichuan; Laos.

Figures

Figure 1. Head of Sinoluperus species A S. variegatus sp. nov. B S. subcostatus Gressitt & Kimoto, 1963 C S. wuyiensis Yang & Wu, 1998.

Figure 5. Sinoluperus subcostatus (male) (holotype) A – C habitus A dorsal view B lateral view C head view. Scale bars: 1 mm.

Figure 6. Sinoluperus subcostatus (female) (paratype) A – C habitus A dorsal view B lateral view C head view. Scale bars: 1 mm.

Figure 7. Sinoluperus subcostatus (male) (paratype) A – C habitus D – F aedeagus A, D dorsal view B, E ventral view C, F lateral view. Scale bars: 1 mm (A – C); 0.5 mm (D – F).

Figure 8. Sinoluperus subcostatus (female) A – C habitus A dorsal view B ventral view C lateral view. Scale bars: 1 mm.