Sasajiscymnus curvatus ( Yu, 1999 )

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 : 42-43

Sasajiscymnus curvatus ( Yu, 1999)

( Figs 28 , 72)

Chinese name: 弯Ṅḧ瓢•

Pseudoscymnus curvatus Yu, 1999: 17 (type locality: Jigongshan National Nature Reserve, Henan, China).— Kovář 2007: 582; Ren et al. 2009: 62.

Pseudoscymnus sp. : Wei et al. 1985: 68.

Sasajiscymnus curvatus: Iqbal et al. 2020: 383 .

Diagnosis. This species is similar to S. bivalvis (Yu, 1997) in structures of the male genitalia, but can be distinguished from the later by elytra with two yellow C-shaped patterns, and parameres about 1/3 as long as penis guide ( Figs 28a–b, 28g ). In S. bivalvis , elytra are black with yellowish brown apices, parameres are about 1/2 as long as penis guide ( Figs 39a–b, 39g ).

Description. TL: 1.55–2.45 mm, TW: 1.07–1.83 mm, TH: 0.67–0.92 mm.

Body oval, moderately convex, surfaces covered with short pubescence ( Figs 28a–c ). Head yellowish brown with interocular distance distinctly greater than eye width in frontal view. Pronotum yellowish brown, sometimes with a black spot. Scutellar shield black. Elytra with two yellow C-shaped patterns as show in Figure 28a . Ventral surfaces yellow to black. Legs yellowish brown. Abdominal postcoxal lines incomplete, recurved toward the base of ventrite ( Fig. 28d ).

Male genitalia: Penis stout, penis capsule with stout outer arm and long inner one, apex of penis constricted with membranous appendage ( Figs 28e–f ). Penis guide with prominent keel at base in lateral view, then tapering towards pointed apex; parameres about 1/3 as long as penis guide, with a tuft of long setae at apex; penis guide approximately parallel sided for basal 1/ 3 in ventral view, apically pointed ( Figs 28g –h ).

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

Material examined. Holotype: China: Henan: ♂, Jigongshan National Nature Reserve , 12.VII.1997, Yu GY leg ( BAAF) . Other material ( SCAU). China: Henan: 2♀, Jigongshan National Nature Reserve , 10.VII.1997, Peng ZQ leg ; 1♂ 3♀, Baotianman National Nature Reserve , 6.VII.2009, Wang XM leg ; 1♀, Longyuwan National Forest Park, 1390 m, 11–12.VII.2009, Wang XM leg; 3♂2♀, Baiyunshan National Nature Reserve, 1375 m, 14.VII.2009, Wang XM leg. Shanxi: 3♂, Lishan National Nature Reserve, 800–1400 m, 3.VIII.2011, Wang XM leg. Anhui : 2♂ 1♀, Yaoluoping National Nature Reserve , 1000 m, 28–29.IX.2010, Wang XM leg ; 2♂, Chuanling, Yaoluoping National Nature Reserve , 800 m, 2.X.2010, Wang XM leg ; 2♂, Jinzhai Tianma National Nature Reserve , 600 m, 3–5.X.2010, Wang XM leg. Hubei: 1♂ 1♀, Guanmen Mountains, Shennongjia National Nature Reserve , 1260 m, 16–19.VII.2007, Wang XM leg ; 1♂, Guanmen Mountains, Shennongjia National Nature Reserve , 1260 m, 2.VIII.2007, Wang XM leg ; 1♂ 5♀, Wudang Mountains, Shiyan City , 700–930 m, 8.VIII.2007, Wang XM leg. Shaanxi: 1♀, Songpingsi, Taibaishan National Nature Reserve , 29.VIII.2006, Wang XM leg ; 1♂ 1♀, Fengyu Forest Farm, 1500 m, 28.VII.2009, Wang XM leg ; 2♀, Cuihuan Mountains, Chang’an District, Xi’an City , 1300 m, 30.VII.2009, Wang XM leg. Gansu: 1♂ 1♀, Lianfeng Mountains , Weiyuan County, 22.VIII.2007, Liang JB leg ; 2♂ 2♀, Maijishan National Forest Park, Maiji District , Tianshui City, 1500 m, 10.VIII.2008, Wang XM leg. Ningxia: 3♂ 2♀, Hougou, Songdian Village, Liupanshan National Nature Reserve , 1850 m, 8.VIII.2009, Wang XM leg ; 26♂ 34♀, Baiyunsi, Liupanshan National Nature Reserve , 2300 m, 10.VIII.2009, Wang XM leg.

Distribution. China (Shanxi, Anhui, Henan, Hubei, Shaanxi, Gansu, Ningxia).

Figures

FIGURE 28. S. curvatus (Yu, 1999): a dorsal view, b lateral view, c frontal view, d abdomen, male, e–h male genitalia: e penis, f apex of penis, g tegmen, lateral view, h tegmen, ventral view. Scale bars: a–c: 0.5 mm; d–h: 0.1 mm.

FIGURE 39. S. bivalvis (Yu, 1997): a dorsal view, b lateral view, c frontal view, d abdomen, male, e–h male genitalia: e penis, f apex of penis, g tegmen, lateral view, h tegmen, ventral view. Scale bars: a–c: 0.5 mm; d–h: 0.1 mm.