Sasajiscymnus quinquepunctatus ( Weise, 1923 )

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 : 36-39

Sasajiscymnus quinquepunctatus ( Weise, 1923)

( Figs 2 , 25, 73)

Chinese name: 五Ṅḧ瓢•

Nephus quinquepunctatus Weise, 1923: 188 (type locality: Taiwan, China).

Scymnus (Nephus) quinquepunctatus: Korschefsky 1931: 144 .

Scymnus (Scymnus) quinquepunctatus: Miyatake 1959: 138 .— Kamiya 1961: 297.

Pseudoscymnus quinquepunctatus: Chapin 1962: 51 .— Yu 1995 a: 129; Pang et al. 2004: 88; Ren et al. 2009: 64.

Pseudoscymnus quinquepunctatus quinquepunctatus: Kamiya 1965a: 102 .— Yang 1971: 86; Sasaji 1971: 102; Kovář 2007: 582.

Pseudoscymnus quinquepunctatus okinawanus: Kamiya 1965a: 103 ; 1966: 85.— Sasaji 1971: 103; Kovář 2007: 582.

Pseudoscymnus sp. : Yu et al. 1993: 470.

Sasajiscymnus quinquepunctatus: Yu 2011: 129 — Iqbal et al. 2020: 387.

Diagnosis. This species is similar to S. parenthesis ( Weise, 1923) in structures of the male genitalia, but can be distinguished from the later by parameres about 3/4 as long as penis guide ( Fig. 2n ). In S. parenthesis , parameres are slightly shorter than penis guide ( Fig. 23g ).

Description. TL: 1.79–2.74 mm, TW: 1.28–2.07 mm, TH: 0.75–1.27 mm.

Body oval, moderately convex, surfaces covered with short pubescence (Figs 25a–c). Head yellowish brown with interocular distance distinctly greater than eye width in frontal view. Pronotum and scutellar shield yellow. Elytra yellowish brown with five black spots. Sometimes the basal and apical spots are enlarged, or even the entire elytra are black, except for the yellowish brown apical margins. Ventral surfaces yellowish brown to black. Legs yellow. Abdominal postcoxal lines incomplete, slightly recurved toward the base of ventrite ( Fig. 2k ).

Male genitalia: Penis stout, penis capsule with stout outer arm and long inner one, apex of penis distinctly expanded with membranous appendage ( Figs 2m –l ). Penis guide with prominent keel at base in lateral view, then tapering towards pointed apex; parameres conspicuously inflated, about 2/3 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, then gradually narrowing to apex ( Figs 2n–o ).

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

Material examined. China: Zhejiang: 2♂ 1♀, Qingliangfeng National Nature Reserve , 465 m, 16.IX.2010, Wang XM leg ; 8♂ 8♀, Zhengjiang Tianmushan National Nature Reserve , 450–1000 m, 18.IX.2010, Wang XM leg. Anhui: 4♂ 6♀, Tangkou Town, Huangshan District, Huangshan City , 460 m, 12–13.IX.2010, Wang XM leg ; 2♀, Huangshan Mountain Scenic Spot, 14–15.IX.2010, Wang XM leg ; 2♂, Hengdu Town , Shitai County, 230 m, 20.IX.2010, Wang XM leg ; 6♂ 9♀, Guniujiang National Nature Reserve , 24.IX.2010, Wang XM leg. Fujian: 1♂ 1♀, Guizhu, Meihuashan National Nature Reserve , 1200 m, 20.VIII.2012, Huo LZ leg ; 2♂ 2♀, Yuncai, Liangyeshan National Nature Reserve , 735 m, 23.VIII.2012, Huo LZ leg ; 2♀, Sanbailiao, Tianboyan National Nature Reserve , 690 m, 26.VIII.2012, Huo LZ leg ; 2♂ 1♀, Shipaichang, Longxishan National Nature Reserve , 500 m, 28–29.VIII.2012, Huo LZ leg ; 2♂ 1♀, Zonghechang, Longxishan National Nature Reserve , 750 m, 30.VIII.2012, Huo LZ leg ; 2♀, Fanjia, Junzifeng National Nature Reserve , 460 m, 1.IX.2012, Huo LZ leg ; 2♂ 1♀, Masu, Wuyishan National Nature Reserve , 1291 m, 15.IX.2012, Huo LZ leg ; 1♂ 1♀, Tongmu Village, Wuyishan National Nature Reserve , 750 m, 17.IX.2012, Huo LZ leg ; 1♀, Jiangxikou, Tongmu Village, Wuyishan National Nature Reserve , 1130 m, 19.IX.2012, Huo LZ leg ; 2♂, Guaxi Village, Fu’an City , 260 m, 21.IX.2012, Huo LZ leg. Jiangxi: 1♂ 1♀, Xiangzhou, Jinggangshan National Nature Reserve , 14.VIII.2004, Wang XM leg ; 10♂ 1♀, Fengshan National Forest Park, 17.VIII.2004, Wang XM leg ; 2♂, Tongmuling, Jinggangshan National Nature Reserve , 19.IX.2004, Wang XM leg ; 1♂, Xiangzhou, Jinggangshan National Nature Reserve , 23.IX.2004, Wang XM leg ; 3♂ 2♀, Longtan, Jinggangshan National Nature Reserve , 24.IX.2004, Wang XM leg ; 1♀, Hexilong, Jinggangshan National Nature Reserve , 26.IX.2004, Wang XM leg. Henan: 1♂, Laojieling , Xixia County, 1430 m, 9.VII.2009, Wang XM leg ; 2♀, Baiyunshan National Nature Reserve , 1375 m, 14.VII.2009, Wang XM leg. Hubei: 1♂ 6♀, Banqiao, Shennongjia National Nature Reserve , 1170 m, 21–24.VII.2007, Wang XM leg ; 1♀, Pingzhan, Shennongjia National Nature Reserve , 1600 m, 27.VII.2007, Wang XM leg ; 1♀, Yinyuhe, Shennongjia National Nature Reserve , 1600–1800 m, 31.VII.2007, Wang XM leg ; 1♀, Laojun Mountains, Shennongjia National Nature Reserve , 1230 m, 5.VIII.2007, Wang XM leg ; 1♂, Wudang Mountains, Shiyan City , 700–930 m, 8.VIII.2007, Wang XM leg. Hunan: 3♂ 7♀, Protection Station, Mangshan National Nature Reserve , 29.IX.2004, Wang XM leg ; 19♂ 5♀, Mangshan National Nature Reserve , 2–3.X.2004, Ren SX leg ; 4♂ 5♀, Shennonggu National Forest Park, 1100 m, 7.X.2010, Wang XM leg ; 9♂ 7♀, Shennonggu National Forest Park, 1000 m, 8.X.2010, Wang XM leg ; 18♂ 10♀, Shennonggu National Forest Park, 650–800 m, 9.X.2010, Wang XM leg. Guangdong: 1♂, Chebaling National Nature Reserve , 3.XI.1989, Yu GY leg ; 1♂, Chebaling National Nature Reserve , 23.IV.1991, Yu GY leg ; 7♂ 1♀, Qinshuigu, Nanling National Nature Reserve , 30.IX.2004, Wang XM leg ; 16♂ 3♀, Xidianzhan, Nanling National Nature Reserve , 1.X.2004, Wang XM leg ; 1♂ 1♀, Xiaohuang Mountains, Nanling National Nature Reserve , 1.X.2004 , Wang XM; 1♂ 1♀, Xidianzhan, Nanling National Nature Reserve , 1.X.2004, Wang XM leg ; 3♂, Hengshitang, Shimentai National Nature Reserve , 5.X.2004, Wang XM leg ; 29♂ 5♀, Yangqiu Mountains, Shimentai National Nature Reserve , 6.X.2004, Wang XM leg ; 6♂ 2♀, Huangniping, Shimentai National Nature Reserve , 7.X.2004, Wang XM leg ; 4♂, Wulangzhang, Shimentai National Nature Reserve , 8.X.2004, Wang XM leg ; 4♂ 5♀, Nankunshan National Forest Park, 21.X.2004, Wang XM leg ; 7♂ 10♀, Shimen, Shimentai National Nature Reserve , 29.X.2004, Wang XM leg ; 13♂ 15♀, Huangdong, Shimentai National Nature Reserve , 30.X.2004, Wang XM leg ; 16♂ 18♀, Huangdong, Shimentai National Nature Reserve , 31.X.2004, Wang XM leg ; 4♀, Huangdong, Shimentai National Nature Reserve , 1.XI.2004, Wang XM leg ; 3♂ 2♀, Qinshuigu, Nanling National Nature Reserve , 21.IX.2005, Wang XM leg. Guangxi: 4♂ 8♀, Hillside, Mao’ershan National Nature Reserve , 16–17.X.2004, Wang XM leg ; 72♂ 72♀, Shili Canyon, Mao’ershan National Nature Reserve , 19.X.2004, Wang XM leg ; 2♂ 2♀, GaoZhai, Mao’ershan National Nature Reserve , 20.X.2004, Wang XM leg ; 4♂, Pinglong Mountains, Shiwandashan National Nature Reserve , 6–7.XI.2004, Wang XM leg ; 9♂ 1♀, Hongqi Forest Farm, Shiwandashan National Nature Reserve , 10.XI.2004, Wang XM leg ; 2♂ 3♀, Hongqi Forest Farm, Shiwandashan National Nature Reserve , 26.VII.2005, Wang XM leg ; 1♂ 3♀, Pinglong Mountains, Shiwandashan National Nature Reserve , 28.VII.2005, Wang XM leg. Hainan: 1♂, Xin’an, Diaoluoshan National Nature Reserve , 18.IX.1995, Peng ZQ leg ; 1♂, Tianchi, Jianfengling National Nature Reserve , IX.1995, Peng ZQ leg ; 1♂ 1♀, Wufenchang, Limushan National Forest Park, IX.1995, Peng ZQ leg ; 2♂ 1♀, Limushan National Forest Park, 21.IV.1996, Peng ZQ leg ; 1♂, Bawangling National Nature Reserve , 5. V.2005, Wang XM leg ; 1♀, Qixianling Hot Springs National Forest Park, 7. V.2005, Wang XM leg ; 2♂, Diaoluoshan National Nature Reserve , 8. V.2005, Wang XM leg ; 1♂, Tianchi, Jianfengling National Nature Reserve , 18.VII.2006, Wang XM leg ; 1♂, Limushan National Forest Park, 22.VII.2006, Wang XM leg ; 1♂ 1♀, Limushan National Forest Park, 23.VII.2006 , Wang XM 2.VIII.1997, Peng ZQ leg ; 1♀, Leigongshan National Nature Reserve , 10.VIII.2006, Wang XM leg ; 1♀, Datangwan, Leigongshan National Nature Reserve , 11.VIII.2006, Wang XM leg ; 1♀, Xiaodanjiang, Leigongshan National Nature Reserve , 13.VIII.2006, Wang XM leg ; 1♂ 2♀, Yaogu, Maolan National Nature Reserve , 15.VIII.2006, Wang XM leg ; 1♀, Maolan National Nature Reserve , 16.VIII.2006, Wang XM leg ; 1♀, Taojiang Town , Rongjiang County, 1000 m, 10–11.X.2008, Chen XS leg ; 1♂, Xiaodanjiang, Leigongshan National Nature Reserve , 12–13.X.2008, Chen XS leg ; 1♂, Jiaomi Village , Taijiang County, 710 m, 14.X.2008, Chen XS leg ; 8♂ 12♀, Dongtang, Maolan National Nature Reserve , 730 m, 15–18.X.2008, Chen XS leg ; 1♂ 8♀, Weng’ang, Maolan National Nature Reserve , 750 m, 20–23.X.2008, Chen XS leg. Yunnan: 1♂, Botanic Garden, Jinghong City , 22.VIII.2005, Wang XM leg ; 1♂, Ruili City , 27.VIII.2005, Wang XM leg ; 1♂, Tongbiguan Town , Yingjiang County, 30.VIII.2005, Wang XM leg ; 1♂, Gaoligongshan National Nature Reserve , 31.VIII.2005, Wang XM leg ; 1♂, National highway 213 route , Mengla County, 12–13.X.2006, Wang XM leg ; 1♀, Dajian Mountains, Daweishan National Nature Reserve , 2100 m, 20–21.IV.2008, Wang XM leg ; 2♂ 2♀, Menglun Town , Mengla County, 1160 m, 29.IV.2008, Wang XM leg ; 4♂ 3♀, Gongxin Village , Menglian County, 1500 m, 8. V.2008, Wang XM leg ; 3♂ 3♀, Yaoqv Town , Mengla County, 700 m, 7–8. V.2009, Wang XM leg ; 1♂, Galaxi Village, Lianhuatan Town , Hekou County, 21. V.2009, Wang XM leg ; 1♂ 1♀, Huayudong National Forest Park, 123 m, 2.VIII.2013, Chen XS leg. Hongkong: 1♂, Shing Mum Country Park , 206 m, 13. V.2018, Wang XM leg. Taiwan: 1♀, Aowanda, Jenai Town , Nantou County, 1280 m, 21.X.2012, Wang XM leg ; 2♀, Dabang Village, Alishan Mountains , Chiayi County, 960–1600 m, 24.X.2012, Wang XM leg ; 1♂ 4♀, Shuangli Village , Pingtung County, 200–400 m, 27.X.2012, Wang XM leg ; 1♂ 3♀, Nanheng, Chihshang Town , Taitung County, 679 m, 29.X.2012, Wang XM leg.

Distribution. China (Zhejiang, Anhui, Fujian, Jiangxi, Henan, Hubei, Hunan, Guangdong, Guangxi, Hainan, Chongqing, Sichuan, Guizhou, Yunnan, Hongkong, Taiwan); Japan.

Remarks. This species varies in elytral patterns. The specimens from Taiwan have yellow pronotum, sometimes with a black spot at base, yellow scutellar shield, and yellow elytra with five black spots. Some specimens from Hubei, Guangxi and Guizhou, elytra are yellow with characteristic black pattern as show in Figure 25d.

This species closely resembles Propipus subopacus Weise, 1901 ( Bielawski, 1961; Yu et al., 1993) from Sumatra, the type species of the monotypic genus Propipus Weise, 1901, and can hardly be distinguished from the latter. However, since we were not able to examine the type series of Propipus subopacus deposited in Senckenberg German Entomological Institute in Berlin, the relationship between Propipus and Sasajiscymnus remains unknown.

Figures

FIGURE 2. Main characters of Sasajiscymnus, S. quinquepunctatus (Weise, 1923): a head, frontal view, b mandible, left, dorsal view, c mandible, right, dorsal view, d labrum, e antenna, f maxilla, g labium, h prothorax, ventral view, i prosternum, ventral view, j hind leg, k abdomen, male, m–o male genitalia: m apex of penis, l penis, n tegmen, lateral view, o tegmen, ventral view. Scale bars: 0.1 mm

FIGURE 23. S. parenthesis (Weise, 1923): a dorsal view, b lateral view, c frontal view, d abdomen, male, e–h male genitalia: e