Stenus viridanus Champion, 1925

(Fig. 1)

Stenus viridanus Champion, 1925: 169; Zheng, 1992: 168; Zhao & Zhou, 2006: 27; Puthz, 2008: 192.

Material examined. China: Zhejiang: 3♂♂, Longquan, Fengyangshan, Da-Tian-Ping, 27°54'36''N, 119°10'20''E, alt. 1320m, 27.IV.2014, Hu, Peng, Song, Yan, Yin & Yu leg. (SHNU) ; Sichuan: 2♂♂, Tianquan County, Laba River 30°4'N, 102°25'E, alt. 1400m, 12.VII.2012, Hu, Peng, Dai & Yin leg. (SHNU) ; 2♂♂, Tianquan County, Lianglu Vill., alt. 1687m, 12.VII.2014, Wen-Xuan Bi leg. (SHNU); 1♀, Tianquan County, Labahe N. R., alt. 2060m, 29.VII.2007, Wen-Xuan Bi leg. (SHNU); ♂, Tianquan County, Lianglu, Shaochaigou, alt. 1530m, 11.IX. 2011, Wen-Xuan Bi leg. (SHNU); 1♀, Jiulong County, Hongba, alt. 1700m, 8.VIII.2005, Ming Yi leg. (SHNU); 1♀, Tianquan Country, Labahe N. R., alt. 1900m, 29.VII.2006, Hu & Tang leg. (SHNU); 1♂, Lizipingxiang, Muli, 28°04'N, 101°10'E, alt. 2800m, 5.VI.2012, Hao Huang leg. (SHNU) ; 1♀, Tianquan County, Labahe N. R., alt. 1900m, 29.VII.2006, Hu & Tang leg. (SHNU); 3♂♂ 3♀♀, Xiaojin County, Dishui Village, 30°58'33''N, 102°42'24''E, mixed leaf litter, sifted, alt. 2900m, 18.VII.2015, Jiang, Peng, Tu & Zhou leg. (SHNU) ; 1♂ 5♀♀, Luding County, Hailuogou, alt. 1900–20 00m, 26.VII.2006, Hu & Tang leg. (SHNU); 3♂♂ 2♀♀, Yaan City, Yucheng District, Jinfeng Temple, 30°01'11''N, 103°02'03''E, alt. 795m, 29.III.2014, Zhuo Chen leg. (SHNU) ; 1♂, Shimian County, Liziping, Zima village, 28°59'N, 102°16'E, alt. 1800m, 16.VII.2012, Peng, Dai & Yin leg. (SHNU) ; 1♂, Yaan City, Nr. Penjiang River, alt. 600m 8.III.2014, Zhuo Chen leg. (SHNU) ; 2♂♂3♀♀, Wannian, Emei Shan, 800m, 21.–29.III.1999, Schawaller (SMNS, cPut); 1♀, Ya’an Pref., Shimian Co., Xiaoxiang Ling, road Shimian-Ganluo, 20 km SE Shimian, 29°05’N, 102°29’E, 1850m, 8.VII.1999, Wrase (cSch) ; 1♀, Mao Xian, Jingzhoucheng, Dagon, 1820–1860m, 21.IX.1996, S. Uéno (cWat); 1♀, Daxue Shan, Gongga Shan, Mt. Hailuongua Glacier Park, 29°36’N, 102°04’E, river valley ca. 4 km above Camp 12, 1200m, 28. –31.V.1997, Pütz (cPüt) ; 1♀, Dayi, Dafeishai Forest, 110 km W of Chengdu near Dayi, 22.VII.1993, J. Jindra (cKoc); Chongqing: 7♂♂ 2♀♀, Jiangjin District, Simianshan, Laosimianshan, 28°37'29''N, 106°28'06''E, mixed forest, decaying log, sifted, alt. 1100m, 20.V.2014, Hao Xu leg. (SHNU) ; 1♀, Jiangjin District, Simianshan Mt., Feilong Temple, 28°36'13''N, 106°22'08''E, alt. 960m, 5.VI.2015, Lu Qiu leg. (SHNU) ; 3♂ 3♀♀, Jiangjin District, Simian Shan N. R., 1000m, 8.VII.2014, Hao Xu leg. (SHNU) ; 1♂ 1♀, Jiangjin District, Simian Shan N. R., 1200m, 2.VI.2014, Hao Xu leg. (SHNU) ; Yunnan: 1♂ Lushui Country, Laowo Fenshuiling, 7.VII. 2010, alt. 2200m, Jian-Qing Zhu leg. (SHNU); 2♂♂1♀, Kunming City, Yu’anshan, 8.VIII.2010, Xiao-Bing Song leg. (SHNU); 10♂♂ 10♀♀, Binchuan County, Jizu Shan, alt. 2400m, 18.VII.2010, Liang Tang leg. (SHNU); 1♂, Lijian Xian, Saito, 1830m, 22.X.1995, Watanabe (cWat); 1♀, Raiyi Xiang, Maocaoshao, 1590m, 26.X.1995, S. Uéno (cPut); 1♀, Dali Bai Nat. Aut. Pref., 1 km W Dali old town, creek valley at foothill of Diancang Shan, 2170m, 25o41.9’N, 100o08.4’E, 19./ 23.VI.2005, Wrase (cSch) ; 1♀, Cang Shan env. Dali, E slope of Zhonghe Shan, 2150–2250m, 25°41.5–7’N, 100°98.0’E, 1.VI.2007, Hájek & Růžička (cSch); 1♀, Nukiang Lisu Aut. Pref., Salwean side valley 5 km S. Fugong, road SS 28 km 223, under stones, moist embarkmane, 8.VI.2007, Schülke (cSch); 1♀, Baoshan Pef., Gaolingong Shan, 10 km SE Kambaiti pass, 45 km NW Tengchong, 1700–1800m, 25o21’13’’N, 98o13’54’’W, river bank, under stones, 29.VIII.2009, Wrase (cSch) ; 1♂, Shanzhi env, Jizu Shan, Zhusheng Si monastery, 25o57.7’N, 100o23.6’E, 2180m, 22.–24.VI.2007, Hájek & Růžička (NMPC) ; Shaanxi: 1♂ 1♀, Foping County, alt. 1250–1400m, 18.VII.2004, Hu, Tang & Zhu leg. (SHNU); Jiangxi: 1♂, Yushan County, Mt. Sanqingshan, alt. 1000–1200m, 16.X.2010, Peng, Zhai & Zhu leg. (SHNU) ; Guizhou: 1♂ 1♀, Fanjingshan, 23.VII.2003, Li-Zhen Li leg. (SHNU); Hubei: 1♂, Wufeng County, Houhe N. R., 29.IV. 2004, Li-Zhen Li leg. (SHNU); 2♂♂, Daba Shan, creek valley 8 km NW Muyuping, 31°29’N, 110°22’E, edge of small creek, 18.VII.2001, Wrase (cSch).

Distribution. China (Zhejiang, Jiangxi, Shaanxi Guizhou, Hubei, Chongqing, Sichuan, Yunnan), India, Pakistan, Bhutan.

Measurements. BL: 5.6–6.9mm, FL: 3.1–3.6 mm. HW: 1.16–1.23 mm, PL: 0.91–1.05 mm, PW: 0.82–0.94 mm, EL: 1.29–1.47 mm, EW: 1.22–1.37 mm, SL: 1.02–1.25 mm. Head 0.90–0.95 times as wide as elytra, pronotum 1.10–1.12 times as long as wide, elytra 1.06–1.07 times as long as wide.

Notes. The species is new to Zhejiang, Jiangxi, Hubei, Chongqing and Yunnan.