Sasajiscymnus sagittalis Tong & Wang

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 : 59-60

Sasajiscymnus sagittalis Tong & Wang sp. nov.

( Figs 41 , 69 )

Chinese name: Ûūḧ瓢•

Diagnosis. This species is most similar to S. lancetapicalis ( Pang & Gordon, 1986) , but can be distinguished from the later by the apically expanded penis ( Fig. 41e ). In S. lancetapicalis , penis is not expanded at apex ( Fig. 43e ).

Description. TL: 1.64–2.23 mm, TW: 1.17–1.64 mm, TH: 0.64–0.92 mm.

Body oval, moderately convex, surfaces covered with short pubescence ( Figs 41a–c ). Head yellowish brown with interocular distance distinctly greater than eye width in frontal view. Pronotum yellowish brown. Scutellar shield brown to black. Elytra black with yellowish brown apices. Ventral surfaces yellowish brown to black. Legs yellowish brown. Abdominal postcoxal lines incomplete, slightly recurved toward the base of ventrite ( Fig. 41d ).

Male genitalia: Penis stout, penis capsule with stout outer arm and long inner one, apex of penis expanded with distinct membranous appendage ( Figs 41e–f ). Penis guide with prominent keel at base in lateral view, then tapering towards apex; parameres about 2/3 as long as penis guide, with a tuft of long setae at apex; penis guide in ventral view widest near the base, then gradually narrowing to apex ( Figs 41g –h ).

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

Type material. Holotype: China: Guangxi: ♂, Hongqi Forest Farm, Shiwandashan National Nature Reserve , 26.VII.2005, Wang XM leg ( SCAU) . Paratypes ( SCAU): China: Guangxi: 4♂ 3♀, Same data as holotype ; 5♂, Hillside, Mao’ershan National Nature Reserve , 17.X.2004, Wang XM leg ; 1♂, Jiuniutang, Mao’ershan National Nature Reserve , 18.X.2004, Wang XM leg ; 81♂ 74♀, Shili Canyon, Mao’ershan National Nature Reserve , 19.X.2004, Wang XM leg ; 9♂ 8♀, GaoZhai, Mao’ershan National Nature Reserve , 20.X.2004, Wang XM leg ; 13♂ 2♀, Pinglong Mountains, Shiwandashan National Nature Reserve , 6–8.XI.2004, Wang XM leg ; 22♂ 2♀, Hongqi Forest Farm, Shiwandashan National Nature Reserve , 9–11.XI.2004, Wang XM leg ; 11♂, Pinglong Mountains, Shiwandashan National Nature Reserve , 28. VII.2005, Wang XM leg. Jiangxi: 6♀, Jingzhu Mountains, Jinggangshan National Nature Reserve , 22.IX.2004, Wang XM leg ; 2♂ 7♀, Longtan, Jinggangshan National Nature Reserve , 24.IX.2004, Wang XM leg ; 1♀, Hexilong, Jinggangshan National Nature Reserve , 26.IX.2004, Wang XM leg. Hunan: 2♂ 3♀, Shennonggu National Forest Park, 1100 m, 7.X.2010, Wang XM leg ; 3♂ 5♀, Shennonggu National Forest Park, 650–800 m, 9.X.2010, Wang XM leg. Guangdong: 2♂ 3♀, Xidianzhan, Nanling National Nature Reserve , 1.X.2004, Wang XM leg ; 1♂, Qinshuigu, Nanling National Nature Reserve , 30.IX.2004, Wang XM leg ; 1♂, Nankunshan 1♀, Xiaoqikong Town , Libo County, 18. VIII.2006, Wang XM leg; 2♂ 1♀, Wangmo County, 21. VIII.2006, Wang XM leg; 1♂ 1♀, Wudong Village– Maoping, Leigongshan National Nature Reserve , 1350 m, 6.X.2008, Wang XM leg ; 10♂ 10♀, Dongtang, Maolan National Nature Reserve , 730 m, 15–18.X.2008, Wang XM leg ; 1♀, Weng’ang, Maolan National Nature Reserve , 750 m, 20–23.X.2008, Wang XM leg. Yunnan: 1♂, Mengla County, 23. VIII. 2005, Wang XM leg; 3♂ 10♀, Lafu Village , Menglian County, 1130 m, 7. V.2008, Wang XM leg; 3♂, Banlao Town , Cangyuan County, 1100 m, 16. V.2008, Wang XM leg; 8♂ 5♀, Dadugang Town, Jinghong City , 1050 m, 5. V.2009, Wang XM leg; 1♂ 6♀, Jinuoshan Town , Jinghong City, 6. V.2009, Wang XM leg; 1♂, Longmen Village, Shangyong Town , Mengla County, 1027 m, 9. V.2009, Wang XM leg.

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

Etymology. The specific epithet sagittalis derives from the Latin word “sagittalis” and refers to its sagittal apex of penis.

Figures

FIGURE 41. S. sagittalis Tong & Wang sp. nov.: 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 43. S. lancetapicalis (Pang & Gordon, 1986): 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 69. Distribution of the Sasajiscymnus hareja species group: ● S. sagittalis Tong & Wang sp. nov.; ■ S. longus Tong & Wang sp. nov.; ◆ S. hareja (Weise, 1879); ▲ S. fulvihumerus (Yang & Wu, 1972); ★ S. latus Tong & Wang sp. nov.