Sasajiscymnus seminigrinus ( Yu & Pang, 1993 )

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 : 55-56

Sasajiscymnus seminigrinus ( Yu & Pang, 1993)

(Figs 38, 67)

Chinese name: 半DZḧ瓢•

Pseudoscymnus seminigrinus Yu et al., 1993: 471 (type locality: Chebaling National Nature Reserve, Guangdong, China).— Pang et al. 2004: 88; Kovář 2007: 582.

Sasajiscymnus seminigrinus: Iqbal et al. 2020: 387 .

Diagnosis. This species is similar to S. latus sp. nov. in structures of the male genitalia, but can be distinguished from the later by the elytra yellowish brown with a black marking near the base (sometimes absent), and its penis guide widest near the base in ventral view (Figs 38a–b, 38k). In S. latus , elytra are entirely black and penis guide is approximately widest at 1/2 length in ventral view (Figs 27a–b, 27h).

Description. TL: 1.54–2.20 mm, TW: 1.09–1.64 mm, TH: 0.62–0.91 mm.

Body oval, moderately convex, surfaces covered with short pubescence (Figs 38a–f). Head yellow to yellowish brown, with interocular distance distinctly greater than eye width in frontal view. Pronotum yellow. Scutellar shield brown. Elytra yellowish brown with a black marking situated at the near base (sometimes reduced). Ventral surfaces yellow to black. Legs yellow. Abdominal postcoxal lines incomplete, slightly recurved toward the base of ventrite (Fig. 38g).

Male genitalia: Penis stout, penis capsule with stout outer arm and long inner one, apex of penis expanded with membranous appendage (Figs 38h–i). Penis guide with prominent keel at base in lateral view, then tapering towards pointed apex; parameres about 3/5 as long as penis guide, with a tuft of long setae at apex; penis guide nearly widest at base in ventral view, apex with a small protuberance (Figs 38j–k).

Female genitalia: Coxites elongate, triangular; styli well developed with terminal setae; spermatheca distinctly curved, with basal ramus and elongate nodulus.

Material examined. Holotype: China: Guangdong: ♂, Chebaling National Nature Reserve , 24.IV.1991, Yu GY leg ( SCAU) . Allotype: China: Guangdong: 1♀, Same data as holotype ( SCAU) . Paratypes: China: Guangdong: 5♂ 4♀, Same data as holotype ( SCAU) ; 1♀, Chebaling National Nature Reserve , 23.III.1989, Yu GY leg ( SCAU) ; 1♀, Chebaling National Nature Reserve , 2.XI.1989, Yu GY leg ( SCAU) ; 1♂, Chebaling National Nature Reserve , 3.XI.1989, Yu GY leg ( SCAU) . Other material ( SCAU). China: Guangdong: 2♂ 1♀, Chebaling National Nature Reserve , 23.III.1989, Ren SX leg ; 1♀, Chebaling National Nature Reserve , 24.IV.1989, Tong XL leg ; 1♂, Nankunshan National Forest Park, 21.X.2004, Wang XM leg. Guangxi: 1♂, Hillside, Mao’ershan National Nature Reserve , 16.X.2004, Wang XM leg ; 2♂ 3♀, Pinglong Mountains, Shiwandashan National Nature Reserve , 6–8.XI.2004, Wang XM leg ; 2♂ 1♀, Hongqi Forest Farm, Shiwandashan National Nature Reserve , 9–10.XI.2004, Wang XM leg ; 1♂ 1♀, Nonggang National Nature Reserve , 3.VIII.2005, Wang XM leg ; 2♂, Pinglong Mountains, Shiwandashan National Nature Reserve , 28.VII.2005, Wang XM leg. Hainan: 3♂ 1♀, Haikou City , 6.XI.1989, Ren SX leg ; 1♀, Maoyang Town , Qiongzhong County, IX.1995, Peng ZQ leg ; 1♀, Maoyang Town , Qiongzhong County, IX.1995, Peng ZQ leg ; 1♀, East Harbour National Nature Reserve , IX.1995, Peng ZQ leg ; 2♂, Honglin Forest Farm, Changjiang County, 10.XII.1997, Peng ZQ leg ; 1♂, Bawangling National Nature Reserve , 12. V.2000, Peng ZQ leg. Guizhou: 2♂ 2♀, Dongtang, Maolan National Nature Reserve , 730 m, 15–18.X.2008, Wang XM leg ; 6♀, Weng’ang, Maolan National Nature Reserve , 750 m, 20–23.X.2008, Wang XM leg. Yunnan: 2♂, Malipo County, 17.VIII.2005, Wang XM leg ; 4♂ 2♀, Huayudong National Forest Park, 123 m, 2.VIII.2013, Chen XS leg.

Distribution. China (Guangdong, Guangxi, Hainan, Guizhou, Yunnan).