Tenupalpa venustalis (Omelko, 1984)

(Figs 2, 11, 36, 56, 75, 91)

Cnaphostola venustalis Omelko, 1984: 32; Omelko, 1999: 183; Park & Ponomarenko, 2007: 45; Ponomarenko, 2008: 91; Sakamaki, 2013: 298. TL: Russia (Primorsk Territory). TD: ZIRAS.

Thiotricha venustalis Kyaw et al., 2019: 75 .

Tenupalpa venustalis Lee et al., 2021: 371 .

Material examined. CHINA: Gansu Province: 18 ♂♂, 10 ♀♀, Dangchuan Forest Farm (34.34°N, 106.16°E), 1331−1342 m, Tianshui City, 28−30.vii.2006, leg. Xinpu Wang and Xiangfeng Shi, genitalia slide nos. ZH07365m, LGE 17032m, LGE 18493 m, LGE 18494 m, LGE18596f. Hebei Province: 2 ♀♀, Mt. Wuling, 800 m, Xinglong County, 29.vii.2010, leg. Aihuan Zhang and Xiaoyu Shi ; 2 ♂♂, 3 ♀♀, Shuangyuanfeng (40.61°N, 117.45°E), 800 m, Mt. Wuling, Xinglong County, 16, 22.vii.2011, leg. Houhun Li and Yanpeng Cai, genitalia slide no. LGE 16307m; 1 ♀, Mt. Wuling, 800 m, Xinglong County, 30.vi.2012, leg. Houhun Li and Shuxia Wang ; 1 ♀, Mt. Wuling (40.63°N, 117.43°E), 1000 m, Xinglong County, 15.vi.2014, leg. Shurong Liu ; 1 ♂, Wuyuezhai (38.71°N, 113.86°E), 928 m, Lingshou County, Shijiazhuang, 6.vii.2016, leg. Sihan Lu and Hua Rong, genitalia slide no. LGE16255 ; 1 ♀, Mt. Bulaoqing (37.34°N, 113.96°E), 952 m, Xingtai County, Xingtai City, 10.vii.2016, leg. Sihan Lu and Hua Rong, genitalia slide no. LGE16254 ; 1 ♀, Liuzhaizi Village (40.54°N, 117.35°E), 539 m, Mt. Wuling Nature Reserves, 16.vii.2016, leg. Shengnan Zhao and Suran Li, genitalia slide no. LGE18024 . Heilongjiang Province: 2 ♀♀, Mt. Mao'er (45.16°N, 127.30°E), Shangzhi City, 17−19.vii.2006, leg. Weichun Li and Jiayu Liu, genitalia slide no. LGE18020 . Henan Province: 1 ♂, 4 ♀♀, Mt. Baotianman (33.52°N, 111.94°E), 1350 m, Neixiang County, 13, 15.vii.1998, leg. Houhun Li, genitalia slide nos. ZJL05330 m, ZJL05319 f; 6 ♂♂, Huangshi'an (33.67°N, 111.65°E), 890 m, Xixia County, leg. Houhun Li, genitalia slide nos. ZJL05318, ZJL05473 ; 2 ♀♀, Lingshansi (31.9°N, 114.22°E), 350 m, Luoshan County, 22,23. v.2000, leg. Haili Yu, genitalia slide no. ZJL05371 ; 1 ♂, Shiziping, 1200 m, Lushi County, 19.vii.2001, leg. Dandan Zhang, genitalia slide no. LGE17285; 1 ♂, 6 ♀♀, Mt. Baiyun (34.18°N, 112.45°E), 1560 m, Luoyang City, 23.vii.2001, leg. Dandan Zhang, genitalia slide nos. ZJL05324 f, ZJL05328 f; 15 ♂♂, 7 ♀♀, Baligou, 780 m, Hui County, 12−14.vii.2002, leg. Xinpu Wang, genitalia slide nos. ZJL05183 m, ZJL05303 f, LGE18597 f; 1 ♂, 2 ♀♀, Mt. Baiyun (33.68°N, 111.85°E), 1580 m, Luoyang City, 18, 20.vii.2002, leg. Xinpu Wang. Hubei Province: 1 ♀, Bajiaomiao, 1100 m, Shennongjia, 19.vii.2003, leg. Shulian Hao ; 1 ♀, Wujiashan (31.08°N, 115.8°E), Yingshan County, 8.vii.2008, leg. Yunli Xiao ; 1 ♂, 2 ♀♀, Taohuachong (30.98°N, 116.02°E), 635 m, Yingshan County, 23.vi.2014, leg. Wei Guan and Meiqing Yang, genitalia slide nos. LGE 16009m, LGE16010 f; 1 ♂, Qingtaiguan Forest (31.19°N, 115.7°E), 570 m, Luotian County, 4.vii.2014, leg. Wei Guan and Meiqing Yang ; 1 ♂, Shennongjia, 1550 m, 16.vii.2014, leg. Qinwen Hou and Yunling Li ; 1 ♂, 1 ♀, Shuangping (31.57°N, 109.87°E), 1201 m, Zhuxi County, 5.vii.2017, leg. Wanding Qi et al . Shanxi Province: 2 ♀♀, Xizhashui Village, 900 m, Lingchuan County (35.46°N, 113.18), Jingcheng, 15.vii.2010, leg. Haiyan Bai and Linlin Yang ; 1 ♀, Mt. Zhongtiao, 11.vii.2012, leg. Qiang Gao and Na Chen ; 1 ♂, 5 ♀♀, Dahe Forest Farm (35.46°N, 111.94°E), 1340 m, Yicheng County, Linfen City, 12, 14.vii.2012, leg. Qiang Gao and Na Chen, genitalia slide no. LGE18712 f; 1 ♀, Dongxia (35.82°N, 112.28°E), 1620 m, Xiachuan, Qinshui County, Jincheng City, 18.vii.2012, leg. Qiang Gao and Na Chen ; 3 ♂♂, 8 ♀♀, Dahe Forest (35.46°N, 111.94°E), 1202 m, Yicheng County, Linfen City, 26.vii.2013, leg. Shulian Hao and Mingjing Li ; 1 ♀, Mt. Lingkong (36.61°N, 112.08°E), Qinyuan County, 1560 m, 31.vii.2014, leg. Tengteng Liu, Meiqing Yang and Sihan Lu ; 24 ♂♂, 52 ♀♀, Mt. Mian (36.87°N, 111.99°E), 1370 m, Jiexiu, 15–20.vii.2014, leg. Tengteng Liu, Meiqing Yang and Sihan Lu, genitalia slide nos. NKLGE012m, LGE 17031m, LGE 18562 m, LGE18031f, LGE18032 f. Shaanxi Province: 1 ♂, Xilin, 450 m, 1.vii.1986, leg. Houhun Li ; 1 ♀, Xinjiashan, 1600 m, Feng County, 9.vii.1988, leg. Houhun Li, genitalia slide no. ZJL05136 ; 1 ♂, Xunyangba Town, 1360 m, Ningshan, 3.vii.2007, leg. Haili Yu. Zhejiang Province: 1 ♀, Wuyanling (27.35°N, 119.92°E), 930 m, Taishun County, 31.vii.2005, leg. Haili Yu ; 1 ♂, 2 ♀♀, Qianmutian (30.40°N, 119.44°E), 1320 m, Mt. Tianmu, 1.vii.2013, leg. Aihui Yin and Xiuchun Wang, genitalia slide no. LGE18469 f; 1 ♀, Sanmuping (30.37°N, 119.43°E), 789 m, Mt. Tianmu, 14.vii.2014, leg. Aihui Yin, Xuemei Hu and Qingyun Wang. KOREA: Jeju-do: 1 ♀, Heurinnae Wetland (33.49°N, 126.70°E), 220m, Seonheul-ri, Jocheon-eup, Jeju-si, 22.vii.2020, leg. Ga-Eun Lee, genitalia slide no. LGE20010 .

Diagnosis. Adult wingspan 6.5−9.5 mm. Tenupalpa venustalis can be distinguished from its congeners by the white forewing with a distal patch surrounded by dark grey scales. The male genitalia are distinctive as the anellus lobe is very narrow and long, exceeding the apex of the valva. The female genitalia are characterized by heavily sclerotized papillae anales and segment VIII, and the absence of a signum.

Distribution. China (Gansu, Hebei, Heilongjiang, Henan, Hubei, Shanxi, Shaanxi, Zhejiang), Japan, Korea, Russia. This species is newly recorded from China and Korea.

Host plants. Fagaceae: Quercus crispula (Kyaw et al. 2019), Q. dentata (Sakamaki 2013; Kyaw et al. 2019), Q. mongolica (Omelko 1999; Park & Ponomarenko 2007; Sakamaki 2013).

Remarks. The type materials deposited in ZIRAS of Russia were not examined in this study. A detailed re-description of T. venustalis was provided in Kyaw et al. (2019).