Sasajiscymnus hamatus ( Yu & Pang, 1993 ) TONG, JUNBO, CHEN, XIAOSHENG, ZHANG, XIAONING, HUO, LIZHI, WU, GANG, PENG, ZHENGQIANG & WANG, XINGMIN, 2022

TONG, JUNBO, CHEN, XIAOSHENG, ZHANG, XIAONING, HUO, LIZHI, WU, GANG, PENG, ZHENGQIANG & WANG, XINGMIN, 2022, A review of the genus Sasajiscymnus Vandenberg, 2004 from China (Coleoptera, Coccinellidae), Zootaxa 5207 (1), pp. 1-104 : 74-75

Sasajiscymnus hamatus ( Yu & Pang, 1993) comb. nov.

(Figs 51, 76)

Chinese name: Ẇ状ḧ瓢•

Pseudoscymnus hamatus Yu et al., 1993: 472 (type locality: Chebaling National Nature Reserve, Guangdong, China).— Pang et al. 2004: 87; Kovář 2007: 582.

Diagnosis. This species is similar to S. kuriharai Kitano, 2012 in structures of the male genitalia, but can be distinguished from the later by its pronotum yellowish brown, sometimes with a black spot at base (Figs 51a–b). In S. kuriharai , pronotum is black with anterior margin narrowly yellowish brown (Figs 52a–b).

Description. TL: 1.56–2.09 mm, TW: 1.17–1.54 mm, TH: 0.71–0.93 mm.

Body oval, moderately convex, surfaces covered with short pubescence (Figs 51a–c). Head yellowish brown, with interocular distance distinctly closer than eye width in frontal view. Pronotum yellowish brown, sometimes with a black spot at base. Scutellar shield black. Elytra black with brown apices. Ventral surfaces yellowish brown to black. Legs yellowish brown. Abdominal postcoxal lines incomplete, recurved toward the base of ventrite (Fig. 51d).

Male genitalia: Penis slender, penis capsule with long inner arm but without outer one, apex of penis pointed (Figs 51e–f). Penis guide apically hook-shaped in lateral view; parameres about 1/4 as long as penis guide, with a tuft of long setae at apex; penis guide approximately parallel sided for basal 5/ 6 in ventral view, then gradually narrowing to blunt apex (Figs 51g –h).

Female genitalia: Coxites shortened; styli absent; spermatheca worm-like, with basal ramus and nodulus.

Type material. Holotype: China: Guangdong: ♂, Chebaling National Nature Reserve , 23.IV.1991, Yu GY leg ( SCAU) . Other material ( SCAU). China: Guangdong: 2♂, Nankunshan National Forest Park, 21.X.2004, Wang XM leg ; 1♂, Qinshuigu, Nanling National Nature Reserve , 21.IX.2005, Wang XM leg. Hainan: 1♂, Diaoluoshan National Nature Reserve , 8. V.2005, Wang XM leg; 2♂, Diaoluoshan National Nature Reserve , 25. VII.2006, Wang XM leg. Yunnan: 1♂, Menglun Town , Mengla County, 21. VIII.2005, Wang XM leg; 2♂, Botanic Garden , Jinghong City, 22. VIII.2005, Wang XM leg; 1♂ 1♀, Menghan Town , Jinghong City, 24. VIII.2005, Wang XM leg; 4♂ 1♀, National highway 213 route, Mengla County, 12–13.X.2006, Wang XM leg ; 1♂ 1♀, Dadugang Town, Jinghong City , 1050 m, 5. V.2009, Wang XM leg; 1♂, Yaoqv Town , Mengla County, 700 m, 7–8. V.2009, Wang XM leg; 1♂, Nanping, Mengman Town , Mengla County, 745 m, 10. V.2009, Wang XM leg; 4♂ 4♀, Meng’a Town , Menghai County, 1170 m, 12. V.2009, Wang XM leg; 1♂, Bapo Village , Gongshan County, 1400 m, 28. VII.2010, Wang XM leg; 1♂, Qinglandan, Maku Village , Gongshan County, 4. VIII.2010, Wang XM leg; 3♂, Aini Village, Jinghong City , 700 m, 13. VIII.2013, Chen XS leg; 1♂, Yexianggu, Xishuangbanna National Nature Reserve , 780 m, 23.IV.2019, Deng LC leg. Xizang: 1♂, Hanmi , Muotuo County, 800–2100 m, 5–8.X.2011, Huo LZ leg.

Distribution. China (Guangdong, Hainan, Yunnan, Xizang).

Remarks. Several individuals have complete abdominal postcoxal lines.