A taxonomic review of Thiotricha Meyrick, 1886 (Lepidoptera, Gelechiidae, Thiotrichinae) from China, with descriptions of 84 new species Author Lee, Ga-Eun 0000-0002-5774-5850 College of Life Sciences, Nankai University, Tianjin 300071, China gaeunlee 486 @ gmail. com; https: // orcid. org / 0000 - 0002 - 5774 - 5850 & Research Institute for Basic Sciences, Jeju National University, Jeju 63243, Korea Corresponding author: lihouhun @ nankai. edu. cn; https: // orcid. org / 0000 - 0002 - 8953 - 3422 gaeunlee486@gmail.com Author Li, Houhun 0000-0002-5774-5850 College of Life Sciences, Nankai University, Tianjin 300071, China gaeunlee 486 @ gmail. com; https: // orcid. org / 0000 - 0002 - 5774 - 5850 & College of Life and Geographic Sciences, Kashi University, Kashi 844000, China; Xinjiang Key Laboratory of Biological Resources and Ecology of Pamirs Plateau, Kashi 844000, China gaeunlee486@gmail.com text Zootaxa 2024 2024-05-15 5449 1 1 222 http://dx.doi.org/10.11646/zootaxa.5449.1.1 journal article 10.11646/zootaxa.5449.1.1 1175-5334 11233121 CAC513A2-D2B4-4E6E-BAB6-CCE6E054680F Thiotricha scotaea Meyrick, 1908 ( Figs 2F , 22A, B , 27V , 45F , 62F , 67G, H , 75A ) Thiotricha scotaea Meyrick, 1908: 442 ; 1925: 103 ; Gaede, 1937: 307 ; Clarke, 1969: 471 ; Ivinskis et al ., 1984: 39 . TL: Sri Lanka ( Ceylon ). TD: NHMUK. Type material ( Figs 67G, H , 75A ). Holotype ♀ , CEYLON , Maskeliya , vi.1904 , leg. J. Pole , genitalia slide no. J. F.G.C. 8381 ( NHMUK ). Additional material examined. CHINA : Anhui Province : 1 ♀ , Kecun ( 31.67°N , 118.45°E ), Jiuhua , 8. viii.2004 , leg. Jiasheng Xu and Jialiang Zhang ; Chongqing Municipality : 2 ♂♂ , 11 ♀♀ , Laosimianshan Village ( 28.8°N , 107.03°E ), Mt.Simian , 1280 m , 12−14.vii.2012 , leg. Yinghui Sun andAihui Yin ; 4♂♂ , 6♀♀ , Laosimianshan Village ( 28.8°N , 107.03°E ), Mt. Simian , 1280 m , 10−12.viii.2012 , leg. Xiaofei Yang and Tengteng Liu ; 1 ♂ , Mt. Jinyun, 550 m , 16.viii.2012 , leg. Xiaofei Yang and Tengteng Liu; 5 ♀♀ , Beipo , 1100 m , Mt. Jinpo , 5, 12.v.2013 , leg. Xiaofei Yang , genitalia slide no. LGE18214; 2 ♂♂ , 2 ♀♀ , Beipo , 800−1100 m , Mt. Jinpo , 20.viii−10.ix.2014 , leg. Xiaofei Yang , genitalia slide no. NKLGE005m; Fujian Province : 1 ♀ , Mt. Meihua ( 25.25°N , 116.75°E ), 19.viii.1988 , Chinese Academy of Sciences , genitalia slide no. ZJL05126 ; 2 ♀♀ , Daiyun Village , 850 m , Mt. Daiyun , Dehua County , 13, 14.ix.2002 , leg. Xinpu Wang , genitalia slide no. ZJL05108; 1 ♀ , Sangang , 740 m , Mt. Wuyi , 27.vii.2008 , leg. Weichun Li , Yongling Sun and Haiyan Bai ; 1 ♂ , 4 ♀♀ , Guadun , 1100 m , Mt. Wuyi , 29.vii.2008 , leg. Weichun Li , Yongling Sun and Haiyan Bai ; Gansu Province : 37 ♂♂ , 43 ♀♀ , Bifenggou ( 32.97°N , 104.68°E ), 860 m , Wen County , 9−14.vii.2005 , leg. Haili Yu , genitalia slide no. ZJL05384m; Guangdong Province : 1 ♂ , Dawuling Nature Reserves ( 22.23°N , 111.2°E ), 1000 m , Xinyi , Maoming City , 10.viii.2003 , leg. Dandan Zhang ; 3 ♀♀ , Mt. Dadong , 650 m , Lianzhou , 21−25.vi.2004 , leg. Dandan Zhang ; Guangxi Zhuang Autonomous Region : 1 ♀ , Mt. Pinglong ( 22.15°N , 107.98°E ), 510 m , Shangsi , 6.iv.2002 , leg. Shulian Hao and Huaijun Xue , genitalia slide no. ZJL05144; 2 ♀♀ , Huatushanzhuang , 550 m , Jinxiu County , 15.iv.2002 , leg. Huaijun Xue ; 1 ♂ , Xiangfen Town , 650 m , Rongshui , 19.vii.2004 , leg. Jiasheng Xu ; 4 ♂♂ , 1 ♀ , Huaping Nature Reserves ( 24.85°N , 106.38°E ), 950−1300 m , 1−7.viii.2006 , leg. Weichun Li ; 1 ♀ , Mt. Yuanbao , 700 m , 11.viii.2006 , leg. Weichun Li ; 3 ♂♂ , 6 ♀♀ , Mt. Daming ( 23.08°N , 107.14°E ), 1250 m , 21−27.v.2011 , leg. Linlin Yang and Yinghui Mou ; 1 ♂ , Fubo Forest ( 22.03°N , 106.83°E ), 550 m , Pingxiang City , 3.viii.2011 , Bingbing Hu et al .; 3 ♀♀ , Shaoping Forest ( 22.06°N , 106.98°E ), 280 m , Pingxiang , 21.iii−23.vi.2012 , leg. Xiaofei Yang ; 2 ♂♂ , 1 ♀ , Hekou Conservation Station ( 24.14°N , 110.09°E ), 823 m , Dayaoshan Nature Reserves , Jinxiu , 18, 20.vii.2015 , leg. Mujie Qi and Shengnan Zhao ; 1 ♀ , Yinsha Park ( 24.15°N , 110.21°E ), 1364 m , Dayaoshan Nature Reserves , Jinxiu , 19.vii.2015 , leg. Mujie Qi and Shengnan Zhao ; 1 ♀ , Mt. Lianhua ( 24.15°N , 110.11°E ), 1000 m , Dayaoshan Nature Reserves , Jinxiu , 22.vii.2015 , leg. Mujie Qi and Shengnan Zhao , genitalia slide no. LGE17002; 3 ♂♂ , 3 ♀♀ , Jiuniutang ( 25.88°N , 110.49°E ), 1016 m , Maoershan Nature Reserves , Guilin , 25.vii.2015 , leg. Mujie Qi and Shengnan Zhao ; 1 ♀ , Peixiuxin Village , 1900 m , Rongshui , 3.viii.2015 , leg. Jiping Wan ; Guizhou Province : 1 ♂ , Shaluo , 390 m , Chishui , 29.v.2000 , leg. Yanli Du , genitalia slide no. LZD01178; 1 ♀ , Huaxi , 1100 m , Guiyang City , 25.vii.2001 , leg. Houhun Li and Xinpu Wang ; 1 ♂ , Huguosi ( 27.95°N , 108.62°E ), 1300 m , Mt. Fanjing , 2.viii.2001 , leg. Houhun Li and Xinpu Wang , genitalia slide no. ZJL05373; 1 ♂ , 2 ♀♀ , Guocun Village ( 29.16°N , 107.44°E ), 1300 m , Daozhen County , 20, 21.viii.2004 , leg. Yunli Xiao ; 1 ♀ , Dashahe , 1370 m , Daozhen County , 25.viii.2004 , leg. Yunli Xiao ; 1 ♂ , 4 ♀♀ , Fangxiang Village , 900 m , Leishan County , 13.ix.2005 , leg. Jialiang Zhang ; 3 ♀♀ , Xiaodanjiang ( 25.93°N , 108.52°E ), 680 m , Rongjiang County , 15.ix.2005 , leg. Jialiang Zhang ; 1 ♂ , Lijiaba ( 28.53°N , 108.48°E ), 700 m , Mayang River , 29.ix.2007 , leg. Hui Zhen ; 3 ♀♀ , Maojiacun , Mayang River , 800 m , 3−5.x.2007 , leg. Hui Zhen ; 1 ♂ , 8 ♀♀ , Xiasicun , 840 m , Kuankuoshui Conservation Zone , Suiyang County , 6, 9.vi.2010 , leg. Linlin Yang ; 3 ♂♂ , 8 ♀♀ , Fangxiang Town ( 26.44°N , 108.27°E ), 910 m , Leishan County , 2, 5.viii.2018 , leg. Meiling Zheng , Jiaqi Deng and Xiaoju Zhu ; 1 ♀ , Heiwanhe ( 27.82°N , 108.78°E ), 528 m , Mt. Fanjing , 18.viii.2018 , leg. Meiling Zheng , Jiaqi Deng and Xiaoju Zhu ; 1 ♂ , Taohuayuan Village ( 27.97°N , 108.78°E ), 769 m , Songtao County , 20.viii.2018 , leg. Meiling Zheng , Jiaqi Deng and Xiaoju Zhu ; Hainan Province : 1 ♀ , Mt. Diaoluo ( 18.66°N , 109.93°E ), 300 m , Lingshui County , 10.viii.2008 , leg. Bingbing Hu and Li Zhang ; 1 ♀ , Wuzhishan Nature Reserves ( 18.90°N , 109.67°E ), 740 m , 14.iv.2009 , leg. Qing Jin and Bingbing Hu ; 1 ♀ , Shuiman Town ( 18.88°N , 109.67°E ), 630 m , Wuzhishan City , 16.iv.2009 , leg. Qing Jin and Bingbing Hu ; 1 ♂ , Yinggeling ( 19.08°N , 109.50°E ), 620 m , 8.xii.2009 , leg. Zhaohui Du and Linlin Yang ; 1 ♀ , Yinggeling ( 19.08°N , 109.50°E ), 620 m , 7.v.2010 , leg. Bingbing Hu and Jing Zhang ; 1 ♀ , Shuiman Town ( 18.88°N , 109.67°E ), 1.vi.2010 , leg. Bingbing Hu and Jing Zhang ; 1 ♂ , Bawangling ( 19.12°N , 109.09°E ), 27.vii.2013 , leg. Haili Yu and Zhe Fan ; 5 ♀♀ , Hongxin Village ( 19.08°N , 109.52°E ), 430 m , Yuanmen Town , Baisha County , 15−17.iv.2014 , leg. Tengteng Liu , Wei Guan and Xuemei Hu ; 8 ♂♂ , 30 ♀♀ , Wuzhishan Nature Reserves ( 18.91°N , 109.68°E ), 710 m , 20, 21.iv.2014 , leg. Tengteng Liu , Wei Guan and Xuemei Hu , genitalia slide nos. LGE 17047m , LGE17048f, LGE 18200m , LGE18201f; 1 ♀ , Fanye Village ( 18.87°N , 109.67°E ), 430 m , Shuiman Town , 22.iv.2014 , leg. Tengteng Liu , Wei Guan and Xuemei Hu ; 1 ♂ , 1 ♀ , Limushan Nature Reserves ( 19.17°N , 109.74°E ), 640 m , 1.v.2014 , leg. Tengteng Liu , Wei Guan and Xuemei Hu ; 1 ♂ , Jianfengling Nature Reserves ( 18.74°N , 108.87°E ), 770 m , 16.vii.2014 , leg. Peixin Cong , Linjie Liu and Sha Hu ; 3 ♀♀ , Limushan Forest Park ( 19.17°N , 109.74°E ), 607 m , 13, 17.v.2015 , leg. Peixin Cong , Wei Guan and Sha Hu ; 5 ♂♂ , 8 ♀♀ , Wuzhishan Nature Reserves ( 18.88°N , 109.65°E ), 742 m , 18−22.v.2015 , leg. Peixin Cong , Wei Guan and Sha Hu ; 1 ♀ , Jianfengling Nature Reserves ( 18.74°N , 108.87°E ), 770 m , Ledong County , 28.v.2015 , leg. Peixin Cong , Wei Guan and Sha Hu ; 1 ♂ , Shuiman Town ( 18.88°N , 109.67°E ), 766 m , Wuzhishan City , 6.vii.2015 , leg. Qingyun Wang , Suran Li and Mengting Chen ; 1 ♂ , Wuzhishan Nature Reserves ( 18.90°N , 109.67°E ), 738 m , 1.iii.2016 , leg. Qingyun Wang , Suran Li and Shengnan Zhao ; 1 ♀ , Limushan Forest Park ( 19.17°N , 109.73°E ), 607 m , 18.vii.2016 , leg. Xia Bai , Shuonan Qian and Wanding Qi ; 6 ♂♂ , 6 ♀♀ , Wuzhishan Nature Reserves ( 18.90°N , 109.67°E ), 738 m , 24−30.vii.2016 , leg. Xia Bai , Shuonan Qian and Wanding Qi ; 2 ♂♂ , 3 ♀♀ , Shuiman Town ( 18.88°N , 109.67°E ), 766 m , Wuzhishan City , 31.vii−4.viii.2016 , leg. Xia Bai , Shuonan Qian and Wanding Qi ; 1 ♂ , Limushan Forest Park ( 19.17°N , 109.73°E ), 607 m , 23.x.2016 , leg. Xia Bai , Shuonan Qian and Wanding Qi ; 1 ♂ , Shuiman Town ( 18.88°N , 109.67°E ), 640 m , Wuzhishan City , 28.x.2016 , leg. Xia Bai , Shuonan Qian and Wanding Qi ; 2 ♂♂ , 1 ♀ , Wuzhishan Nature Reserves ( 18.90°N , 109.67°E ), 738 m , 2, 3.xi.2016 , leg. Xia Bai , Shuonan Qian and Wanding Qi ; 1 ♀ , Yinggezui ( 19.05°N , 109.56°E ), 599 m , Yinggeling , 27.vii.2017 , leg. Xia Bai , Ping Liu and Shuai Yu ; 2 ♀♀ , Mt. Wuzhi ( 18.91°N , 109.70°E ), 732 m , 5.viii.2017 , leg. Xia Bai , Ping Liu and Shuai Yu ; 1 ♂ , Mingfenggu ( 18.74°N , 108.84°E ), 954 m , Jianfengling , 8.viii.2017 , leg. Xia Bai , Ping Liu and Shuai Yu ; Henan Province : 2 ♂♂ , Liulou ( 32.17°N , 115.68°E ), 120 m , Zushi Town , Gushi County , 16, 20.v.1995 , leg. Guangyun Yan , genitalia slide nos. L95385, L95406; 2 ♀♀ , Lingshansi ( 31.9°N , 114.22°E ), 350 m , Luoshan County , 21, 22.v.2000 , leg. Haili Yu , genitalia slide no. ZJL05271; Hong Kong: 1 ♀ , Kadoorie Agricultural Research Centre ( 22.44°N , 114.13°E ), Shek Kong , 4.iii.1997 , leg. R. C. Kendrick , genitalia slide no. LGE17122; 1 ♀ , Kadoorie Farm & Botanical Garden, 310 m , leg. R. C. Kendrick, genitalia slide no. ZH06360; 1 ♂ , Kadoorie Agricultural Research Centre ( 22.44°N , 114.13°E ), 210 m , 19.iv.2007 , leg. Houhun Li et al ., genitalia slide no. LGE18244; 1 ♂ , Weihai Shanzhuang , 50−60 m , Dabu , 20.iv.2007 , leg. Houhun Li et al ., genitalia slide no. LGE18243; Hubei Province : 4 ♀♀ , Wujiashan ( 31.08°N , 115.8°E ), Yingshan County , 6, 8.vii.2008 , leg. Yunli Xiao , genitalia slide no. LGE18215; 2 ♀♀ , Wujiashan ( 31.08°N , 115.8°E ), Yingshan County , 10, 15.vii.2011 , leg. Yunli Xiao ; 1 ♂ , 1 ♀ , Taohuachong ( 30.98°N , 116.02°E ), 635 m , Yingshan County , 24, 25.vi.2014 , leg. Wei Guan and Meiqing Yang ; 1 ♂ , Wujiashan ( 31.09°N , 115.8°E ), Yingshan County , 30.vi.2014 , leg. Wei Guan and Meiqing Yang ; 1 ♀ , Qingtaiguan Forest ( 31.19°N , 115.7°E ), 570 m , Luotian County , 2.vii.2014 , leg. Wei Guan and Meiqing Yang ; Hunan Province : 1 ♀ , Mt. Badagong ( 29.38°N , 110.18°E ), 1250 m , Sangzhi County , 14.viii.2001 , leg. Houhun Li and Xinpu Wang ; 1 ♂ , Cangxi Town ( 27.72°N , 111.32°E ), Xinhua County , 8.viii.2004 , leg. Yunli Xiao ; Jiangxi Province : 3 ♂♂ , 5 ♀♀ , Mt. Zhenzhu , Wuyuan , 25−27.vi.1989 , leg. Guangpu Shen , genitalia slide nos. ZJL05036m, ZJL05243f; 2 ♀♀ , Mt. Jiulian , 20, 21.vii.2006 , leg. Jiasheng Xu and Weichun Li ; Xizang Autonomous Region : 2 ♀♀ , 80K ( 29.66°N , 95.49°E ), 2059 m , Motuo County , 8, 9.viii.2017 , leg. Mujie Qi and Xiaofei Yang ; 6 ♂♂ , 4 ♀♀ , Motuo County ( 29.32°N , 95.32°E ), 1097 m , Linzhi City , 10.viii.2017 , leg. Mujie Qi and Xiaofei Yang ; 5 ♂♂ , 15 ♀♀ , Beibeng Town ( 29.24°N , 95.17°E ), 810−989 m , Motuo County , 12−15.viii.2017 , leg. Mujie Qi and Xiaofei Yang , genitalia slide nos. LGE 18223m , LGE18224f; 1 ♂ , Yadong Village ( 29.33°N , 95.34°E ), 833 m , Motuo County , 16.viii.2017 , leg. Mujie Qi and Xiaofei Yang ; 2 ♂♂ , 1 ♀ , Dexing Village ( 29.32°N , 95.30°E ), 833 m , Motuo County , 18.viii.2017 , leg. Mujie Qi and Xiaofei Yang ; 1 ♂ , Yadong Village ( 29.33°N , 95.34°E ), 833 m , Motuo County , 2.viii.2018 , leg. Mujie Qi ; 5 ♂♂ , 2 ♀♀ , Chengjiao ( 29.32°N , 95.32°E ), 1016–1097 m , Motuo County , 3, 5.viii.2018 , leg. Mujie Qi ; 1 ♂ , 4 ♀♀ , 80 K ( 29.66°N , 95.49°E ), 2076 m , Motuo County , 6–9.viii.2018 , leg. Mujie Qi ; Yunnan Province : 1 ♀ , Nankang ( 24.82°N , 98.78°E ), 2009 m , Baoshan City , 17.vii.2015 , leg. Kaijian Teng and Xia Bai , genitalia slide no. LGE18219; 1 ♂ , Pukawang Village ( 27.84°N , 98.32°E ), 1335 m , Dulongjiang Town , Gaoligongshan County , 11.vi.2017 , leg. Kaijian Teng et al ., genitalia slide no. LGE18218; Zhejiang Province : 2 ♂♂ , 3 ♀♀ , Changgangshan Natural Forest Reserves ( 30.02°N , 122.1°E ), 64 m , Zhoushan City , 3, 6.viii.2016 , leg. Qingyun Wang , Meiqing Yang and Ping Liu , genitalia slide no. LGE 16284m ; 1 ♀ , Kaishanlaodian ( 30.34°N , 119.45°E ), 1140 m , Mt. Tianmu , Hangzhou City , 17.viii.1999 , leg. Houhun Li et al ., genitalia slide no. ZJL05064; 1 ♂ , 2 ♀♀ , Botanical Garden , 900 m , Mt. Qingliangfeng , Lin’an County , 13.viii.2007 , leg. Qing Jin ; 4 ♀♀ , Xianrending ( 30.20°N , 119.50°E ), 1500 m , Mt. Tianmu , 25.vii.2011 , leg. Linlin Yang and Na Chen ; 2 ♂♂ , 3 ♀♀ , Zhonglieci , 400 m , Mt. Tianmu , 25.vii−2. viii.2011 , leg. Linlin Yang and Na Chen , genitalia slide no. LGE16137f; 1 ♂ , Mt. Jiulong ( 27.97°N , 119.63°E ), 400 m , 4.viii.2011 , leg. Linlin Yang and Na Chen ; 3 ♀♀ , Longtangshan ( 30.13°N , 118.91°E ), 500 m , Mt. Qingliangfeng , Lin’an City , 21.v.2012 , leg. Linlin Yang and Zhenguo Zhang ; 14 ♂♂ , 12 ♀♀ , Zhonglieci ( 30.32°N , 119.45°E ), 365 m , Mt. Tianmu , 26, 27.vi.2013 , leg. Aihui Yin and Xiuchun Wang , genitalia slide nos. LLJ14116f, LLJ 14160m , LGE 17004m ; 1 ♀ , Zhangkengkou ( 28.32°N , 118.99°E ), 623 m , Mt. Jiulong , 5.vii.2013 , leg. Aihui Yin and Xiuchun Wang ; 1 ♂ , Huangtanyu ( 28.39°N , 118.84°E ), 467 m , Mt. Jiulong , 6.vii.2013 , Aihui Yin and Xiuchun ; 1 ♀ , Laoan ( 30.33°N , 119.40°E ), 555 m , Mt.Tianmu , 6.vii.2014 , leg. Aihui Yin , Xuemei Hu and Qingyun Wang ; 1 ♀ , Sanmuping ( 30.37°N , 119.43°E ), 789 m , Mt. Tianmu , 15.vii.2014 , leg. Aihui Yin , Xuemei Hu and Qingyun Wang , genitalia slide no. LGE17006; 3 ♂♂ , 1 ♀ , Qianjiangyuan ( 30.39°N , 119.49°E ), 866 m , Mt. Tianmu , 12−14.viii.2014 , leg. Aihui Yin , Qingyun Wang and Suran Li ; 4 ♂♂ , 7 ♀♀ , Laoan ( 30.33°N , 119.40°E ), 555 m , Mt. Tianmu , 16−19. viii.2014 , leg. Aihui Yin , Qingyun Wang and Suran Li , genitalia slide no. LGE 17003m ; 1 ♂ , 2 ♀♀ , Jiufucun ( 30.09°N , 118.93°E ), 520 m , Mt. Longtang , 28−31.viii.2014 , leg. Aihui Yin , Qingyun Wang and Suran Li ; 1 ♀ , Ganzhuling ( 29.72°N , 121.08°E ), 853 m , Simingshan Town , Yuyao City , 24.vii.2015 , leg. Aihui Yin , Kang Lou and Tao Wang ; 1 ♀ , Huaxi Village ( 28.99°N , 120.50°E ), 542 m , Anwen Town , Panan County , Jinhua City , 28.vii.2015 , leg. Aihui Yin , Kang Lou and Tao Wang ; 3 ♂♂ , 5 ♀♀ , Simingshan National Forest Park ( 29.72°N , 121.07°E ), 822 m , Ningbo City , 31.vii−2.viii.2016 , leg. Qingyun Wang , Meiqing Yang and Ping Liu ; 1 ♂ , 2 ♀♀ , Taohuadao ( 29.83°N , 122.27°E ), 62.9 m , Zhoushan City , 4.viii.2016 , leg. Qingyun Wang , Meiqing Yang and Ping Liu ; 2 ♂♂ , 2 ♀♀ , Daishandao ( 30.23°N , 122.2°E ), 21 m , Zhoushan City , 5.viii.2016 , leg. Qingyun Wang , Meiqing Yang and Ping Liu ; 1 ♂ , 1 ♀ , Laofoyan Village ( 28.35°N , 118.63°E ), 424 m , Shuangxikou Town , Jiangshan City , 8.viii.2016 , leg. Qingyun Wang , Meiqing Yang and Ping Liu ; 1 ♀ , Huangtianhu ( 27.93°N , 119.68°E ), 787 m , Jingning County , 11.viii.2016 , leg. Qingyun Wang , Meiqing Yang and Ping Liu ; 1 ♀ , Baishanzu Nature Reserves ( 27.73°N , 119.17°E ), 1149 m , Qingyuan County , 14.viii.2016 , leg. Qingyun Wang , Meiqing Yang and Ping Liu ; 1 ♀ , Shimendong ( 28.27°N , 120.1°E ), 102 m , Qingtian County , 22.viii.2016 , leg. Qingyun Wang , Meiqing Yang and Ping Liu ; 3 ♂♂ , 4 ♀♀ , Linkeng Village ( 28.53°N , 120.7°E ), 387 m , Yongjia County , 24−27.viii.2016 , leg. Qingyun Wang , Meiqing Yang and Ping Liu ; 2 ♀♀ , Longtangshanzhuang ( 30.08°N , 118.92°E ), 500 m , Qingliangfeng , Lin’an City , 13.v.2017 , leg. Shuonan Qian and Ga-Eun Lee ; 2 ♂♂ , 3 ♀♀ , Gutianshan ( 29.23°N , 118.1°E ), 310 m , Kaihua County , Quzhou City , 17−19.v.2017 , leg. Shuonan Qian and Ga-Eun Lee ; 1 ♂ , Simingshan ( 29.73°N , 121.08°E ), 843 m , 30.vi.2017 , leg. Zhenguo Zhang , Yanyan Jia and Juan Li ; 1 ♂ , Simingshan Forest Park ( 29.73°N , 121.08°E ), 835 m , 2.vii.2017 , leg. Zhenguo Zhang , Yanyan Jia and Juan Li ; 1 ♀ , Laofoyan Village ( 28.37°N , 118.68°E ), 413 m , Jiangshan City , 3.vii.2017 , leg. Zhenguo Zhang , Yanyan Jia and Juan Li ; 4 ♂♂ , Zhushan Park ( 30.01°N , 122.08°E ), 109 m , Zhoushan City , 20.viii.2017 , leg. Shuonan Qian , Yanyan Jia and Juan Li ; 1 ♀ , Changgangshan ( 30.03°N , 122.12°E ), 70 m , Zhoushan City , 21.viii.2017 , leg. Shuonan Qian , Yanyan Jia and Juan Li ; 4 ♂♂ , 2 ♀♀ , Gutianshan ( 29.24°N , 118.11°E ), 412 m , Quzhou City , 24, 25.viii.2017 , leg. Shuonan Qian , Yanyan Jia and Juan Li ; 1 ♂ , 1 ♀ , Mt. Jiulong ( 28.39°N , 118.84°E ), 509 m , Lishui City , 26, 27.viii.2017 , leg. Shuonan Qian , Yanyan Jia and Juan Li , genitalia slide no. LGE 18225m ; 1 ♀ , Fuze Village ( 29.34°N , 119.13°E ), 144 m , Chun’an County , 1.viii.2018 , leg. Shuai Yu , Mengran Xing and Chen Liu ; 1 ♀ , Datou Village ( 29.10°N , 118.45°E ), 707 m , Quzhou City , 8.viii.2018 , leg. Shuai Yu , Mengran Xing and Chen Liu ; 2 ♀♀ , Laofoyan Village ( 28.21°N , 118.41°E ), 465 m , 10, 11.viii.2018 , leg. Shuai Yu , Mengran Xing and Chen Liu ; 3 ♂♂ , 1 ♀ , Gutianshan ( 29.14°N , 118.07°E ), 416 m , Kaihua County , 13, 14.viii.2018 , leg. Shuai Yu , Mengran Xing and Chen Liu. CAMBODIA : 1 ♀ , Koulen National Park , 15.ii.2013 , leg. Y. S. Bae , Y. D. Ju , X. V. Le , B. S. Park and H. J. Lee ( INU ) . Diagnosis. Adult ( Figs 2F , 22A, B ). Wingspan male 7.5−12.0 mm, female 9.0− 14.5 mm . In this species, the sexual dimorphism is striking. The male forewings are smaller and darker than those of females. Also, males have short labial palpi with segment III somewhat swollen whereas females have long, slender and simple labial palpi. The elongated intersegmental membrane between the male abdominal segment VII and VIII is unique in the genus. The male genitalia ( Fig. 45F ) are diagnosed by the very slender valva bearing a subtriangular projection on costa, and the female genitalia ( Fig. 62F ) can be distinguished from other species by the fan-shaped sclerotization on sternum VIII. The signum of female genitalia can vary in size. Distribution. China ( Anhui , Chongqing , Fujian , Gansu , Guangdong , Guangxi , Guizhou , Hainan , Henan , Hong Kong , Hubei, Hunan, Jiangxi, Xizang, Yunnan, Zhejiang), Cambodia (new record), Sri Lanka . Remarks. This species was described based on a single female specimen. Based on examination of Chinese materials, the male genitalia of T. scotaea are naturally enclosed by an elongated intersegmental membrane and situated inside of the abdomen, which is unusual not only in the genus but also in other genera of Thiotrichinae . Also, long coremata are present on the male abdomen similar to the species of Palumbina and Pulchrala , suggesting that the generic placement of the species is questionable as in the lata -group. Further work will be needed to resolve its position. This species is newly recorded from China and Cambodia , and the males are known for the first time.