Thiotricha pancratiastis Meyrick, 1921

Lee, Ga-Eun & Li, Houhun, 2024, A taxonomic review of Thiotricha Meyrick, 1886 (Lepidoptera, Gelechiidae, Thiotrichinae) from China, with descriptions of 84 new species, Zootaxa 5449 (1), pp. 1-222 : 72-74

publication ID	https://doi.org/ 10.11646/zootaxa.5449.1.1
publication LSID	lsid:zoobank.org:pub:CAC513A2-D2B4-4E6E-BAB6-CCE6E054680F
persistent identifier	https://treatment.plazi.org/id/03CC3667-987C-1D36-FF05-88EFDD66E66A
treatment provided by	Plazi
scientific name	Thiotricha pancratiastis Meyrick, 1921
status

Treatment

Thiotricha pancratiastis Meyrick, 1921 View in CoL

( Figs 1B View FIGURE 1 , 3B View FIGURE 3 , 11F View FIGURE 11 , 25D View FIGURE 25 , 36B View FIGURE 36 , 52F View FIGURE 52 , 64C, D View FIGURE 64 )

Thiotricha pancratiastis Meyrick, 1921: 426 View in CoL ; 1925: 103; Gaede, 1937: 306; Clarke, 1969: 464; Moriuti, 1982: 280; Ivinskis et al., 1984: 39; Ueda & Fujiwara, 2005: 75; Fujita et al., 2009: 427; Koo et al., 2020: 38. TL: Assam, India. TD: NHMUK. Polyhymno pancratiastis View in CoL : Moriuti, 1982: 280; Kanazawa & Heppner, 1992: 70; Hua, 2005: 7; Sakamaki, 2013: 297.

Type material ( Fig. 64C, D View FIGURE 64 ). Holotype ♂ INDIA, Assam, Shillong , 5,000 feet, vi.1918, leg. T. B. Fletcher (abdomen missing) ( NHMUK).

Additional material examined. CHINA: Chongqing Municipality : 4 ♀♀, Mt. Simian (28.8°N, 107.03°E), 1280 m, 13−19.vii.2012, leg. Yinghui Sun and Aihui Yin GoogleMaps ; 1 ♂, 2 ♀♀, Mt. Simian (28.8°N, 107.03°E), 1280 m, 10, 11.viii.2012, leg. Xiaofei Yang and Tengteng Liu GoogleMaps , genitalia slide no. LGE18057f; 4 ♂♂, 1 ♀, Northern slope, Mt. Jinfo , 800 m, 24.viii, 10, 13.ix.2014, leg. Xiaofei Yang ; Fujian Province: 2 ♂♂, 1 ♀, Sangang, 740 m, Mt. Wuyi , 25−27.vii.2008, leg. Weichun Li, Yongling Sun and Haiyan Bai ; 8 ♂♂, 13 ♀♀, Guadun, 1100 m, Mt. Wuyi , 29.vii.2008, leg. Weichun Li, Yongling Sun and Haiyan Bai , genitalia slide no. LGE17192f; 1 ♀, Shangping Village, Yongan City , 21.iv.2014, leg. Xiaofei Yang ; Guangdong Province: 1 ♂, Nanling, Shaoguan City , 7–14.vii.2007, leg. Min Wang et al.; Guangxi Zhuang Autonomous Region : 1 ♀, Jiuniutang, 1100 m, Mt. Maoer , 19.iv.2002, leg. Shulian Hao and Huaijun Xue , genitalia slide no. ZJL05091; 1 ♂, 1 ♀, Mt. Daming , 1250 m, 21, 25.v.2011, leg. Linlin Yang and Yinghui Mou ; 1 ♀, Shaoping Forest (22.06°N, 106.98°E), 280 m, Pingxiang , 18.iii.2012, leg. Xiaofei Yang GoogleMaps , genitalia slide no. LGE18131; 2 ♂♂, 3 ♀♀, Dayaoshan Nature Reserves (24.15°N, 110.21°E), 1364 m, Jinxiu , 21.vii.2015, leg. Mujie Qi and Shengnan Zhao GoogleMaps , genitalia slide no. NKLGE001m; 1 ♂, 1 ♀, Mt. Lianhua (24.15°N, 110.11°E), 1000 m, Dayaoshan Nature Reserves, Jinxiu , 22.vii.2015, leg. Mujie Qi and Shengnan Zhao GoogleMaps ; 4 ♂♂, 5 ♀♀, Yangmeiao (25.29°N, 109.31°E), 1180 m, Huanjiang County, Hechi , 24−26.vii.2015, leg. Meiqing Yang and Ga-Eun Lee GoogleMaps , genitalia slide nos. LGE 15024m, LGE 15030m; 2 ♀♀, Mt. Jiuwan, Hechi , 1600 m, leg. Jiping Wan ; 1 ♀, Yangmeiao Conservation Station, 1240 m, Rongshui County, Liuzhou , 27.vii.2015, leg. Meiqing Yang and Ga-Eun Lee , genitalia slide no. LGE15028; Guizhou Province: 1 ♀, Xiasicun (28.13°N, 107.23°E), 840 m, Kuankuoshui Reserves , Suiyang County, 6.vi.2010, leg. Linlin Yang GoogleMaps ; 1 ♀, Dongdai, 720 m, Shuizu Town , Limingguan , Libo County, 19.vii.2015, leg. Meiqing Yang and Ga-Eun Lee ; 5 ♂♂, 2 ♀♀, Fangxiang Town (26.44°N, 108.27°E), 910 m, Leishan County, 2, 4.viii.2018, leg. Meiling Zheng, Jiaqi Deng and Xiaoju Zhu GoogleMaps ; 3 ♂♂, Kuankuoshui (28.23°N, 107.16°E), 1509 m, 26.viii.2018, leg. Meiling Zheng, Jiaqi Deng and Xiaoju Zhu GoogleMaps ; Hubei Province: 1 ♀, Mt. Jiugong, Xianning City , 27.vii.2011, leg. Yunli Xiao , genitalia slide no. LGE18132; Jiangxi Province: 1 ♀, Mt. Damao , 15.viii.1980, genitalia slide no. ZJL05125 ; 1 ♀, Mt. Zhenzhu, Wuyuan , 25.vi.1989, leg. Guangpu Shen , genitalia slide no. ZJL05160; 1 ♂, 3 ♀♀, Mt. Feng , 26.vii.2006, leg. Jiasheng Xu and Weichun Li , genitalia slide no. LGE 18058m; Yunnan Province: 1 ♂, 1 ♀, Mt. Weibao (24.52°N, 98.84°E), 2200 m, Weishan County, 20, 21.vii.2001, leg. Houhun Li and Xinpu Wang GoogleMaps , genitalia slide no. ZJL05323m; 1 ♂, Caiyanghe, 1650 m, Pu’er City , 28.vii.2007, leg. Bingbing Hu ; 1 ♀, Taiyanghe Nature Reserves , 1600 m, 11.vii.2013, leg. Zhenguo Zhang ; 2 ♀♀, Xiaoheishan Nature Reserves (24.52°N, 98.84°E), 1974 m, Longling County, 18.vii.2013, leg. Shurong Liu, Yuqi Wang and Kaijian Teng GoogleMaps , genitalia slide no. LGE18125; 1 ♂, Taiyanghe Nature Reserves (22.79°N, 100.98°E), 1450 m, 3.vi.2014, leg. Zhenguo Zhang GoogleMaps ; 4 ♂♂, Linjiapu (25.29°N, 98.70°E), 2144 m, Tengchong County, 14, 15.viii.2014, leg. Kaijian Teng, Shurong Liu and Hua Rong GoogleMaps , genitalia slide no. LGE18397; 2 ♂♂, 1 ♀, Yuyingtang, 1450 m, Taiyanghe Nature Reserves, Pu’er City , 8–24.iv.2015, leg. Kaijian Teng , genitalia slide no. LGE16170f; 2 ♂♂, 3 ♀♀, Nankang Forest Station (24.82°N, 98.78°E), 2009 m, Baoshan City , 16–18.vii.2015, leg. Kaijian Teng and Xia Bai GoogleMaps , genitalia slide nos. LGE15027f, LGE 18124m, LGE 18179m; 1 ♀, Gaoligongshan National Forest Park (24.83°N, 98.77°E), Baoshan City , 24.vii.2015, leg. Kaijian Teng and Xia Bai GoogleMaps ; 2 ♂♂, 1 ♀, Xiaoheishan Nature Reserves (24.52°N, 98.84°E), 1974 m, Longling County, 27–29.vii.2015, leg. Kaijian Teng and Xia Bai GoogleMaps , genitalia slide nos. LGE 15023m, LGE 16169m; Zhejiang Province: 1 ♂, 1 ♀, Chanyuansi, 350 m, Mt. Tianmu , 20.viii.1999, leg. Houhun Li et al. genitalia slide nos. ZJL05066f, ZJL05067m; 5 ♂♂, 2 ♀♀, Wuyanling (27.35°N, 119.92°E), 680 m, Taishun County, 28.vii, 2.viii.2005, leg. Haili Yu GoogleMaps , genitalia slide no. ZJL05403m; 1 ♂, 1 ♀, Wuyanling (27.35°N, 119.92°E), 1050 m, Taishun County, 30.vii.2005, leg. Haili Yu GoogleMaps ; 4 ♂♂, 1 ♀, Wuyanling (27.35°N, 119.92°E), 930 m, Taishun County, 31.vii.2005, leg. Haili Yu GoogleMaps ; 4 ♂♂, 2 ♀♀, Laoan (30.33°N, 119.40°E), 555 m, Mt. Tianmu , 16−19.viii.2014, leg. Aihui Yin, Qingyun Wang and Suran Li GoogleMaps , genitalia slide no. LGE16168f; 3 ♂♂, Sanmuping (30.37°N, 119.43°E), 789 m, Mt. Tianmu , 16, 17.vii.2015, leg. Aihui Yin, Kang Lou and Tao Wang GoogleMaps , genitalia slide no. LGE16167; 2 ♂♂, 1 ♀, Ganzhulin (29.72°N, 121.08°E), 853 m, Simingshan Town, Yuyao City , 23, 24.vii.2015, leg. Aihui Yin, Kang Lou and Tao Wang GoogleMaps , genitalia slide no. LGE15032f; 1 ♂, Changgangshan Natural Forest Reserves (30.02°N, 122.1°E), 64 m, Zhoushan City , 6.viii.2016, leg. Qingyun Wang, Meiqing Yang and Ping Liu GoogleMaps ; 1 ♂, Laofoyan Village (28.37°N, 118.67°E), 424 m, Shuangxi Town, Xianxialing , Jiangshan City , 9.viii.2016, leg. Qingyun Wang, Meiqing Yang and Ping Liu GoogleMaps , genitalia slide no. LGE18134; 6 ♂♂, 4 ♀♀, Wangdongyang Wetlands Reserves (27.67°N, 119.63°E), 1301 m, Jingning County, 12.viii.2016, leg. Qingyun Wang, Meiqing Yang and Ping Liu GoogleMaps , genitalia slide no. LGE 16261m; 2 ♂♂, 1 ♀, Shimendong (28.27°N, 120.1°E), 102 m, Qingtian County, 22.viii.2016, leg. Qingyun Wang, Meiqing Yang and Ping Liu GoogleMaps ; 1 ♀, Linkeng Village (28.53°N, 120.7°E), 387 m, Yongjia County, 27.viii.2016, leg. Qingyun Wang, Meiqing Yang and Ping Liu GoogleMaps ; 1 ♂, Laofoyan Village (28.37°N, 118.67°E), 400 m, Shuangxi Town, Xianxialing , Jiangshan City , 28.v.2017, leg. Shuonan Qian and Ga-Eun Lee GoogleMaps ; 4 ♂♂, 14 ♀♀, Changgangshan Park (30.02°N, 122.12°E), 20 m, Zhoushan City , 30.v.2017, leg. Shuonan Qian and Ga-Eun Lee GoogleMaps ; 1 ♀, Yapianzhanzheng Park (30.0°N, 122.08°E), 40 m, Zhoushan City , 31.v.2017, leg. Shuonan Qian and Ga-Eun Lee GoogleMaps ; 1 ♂, Laofoyan Village (28.21°N, 118.41°E), 465 m, 11.viii.2018, leg. Shuai Yu, Mengran Xing and Chen Liu GoogleMaps ; 4 ♂♂, 6 ♀♀, Gutianshan (29.14°N, 118.07°E), 416 m, Kaihua County, 13–15.viii.2018, leg. Shuai Yu, Mengran Xing and Chen Liu GoogleMaps ; 1 ♂, 1 ♀, Longwantan (28.22°N, 120.52°E), 127 m, Yongjia County, 20, 22.viii.2018, leg. Shuai Yu, Mengran Xing and Chen Liu. GoogleMaps CAMBODIA: 1 ♀, Samkos, Alt. 310 m (N 12°18'16.0" E 103°06'7.00"), 9.ii.2014, leg. Y. S. Bae, Y. D. Ju, Mujie Qi, B. S. Park, S. M. Na, J. W. Kim and D. J. Lee ( INU) . KOREA: Jeju-do: 1 ♀, Seogwipo-si, Sanghyo-dong , 7.viii.2012, leg. Kyu Tek Park ( NIBR) ; 1 ♀, Seogwipo-si, Topyeong-dong , 27.viii.2021, leg. Ga-Eun Lee ( JNU) ; 1 ♀, Seogwipo-si, Namwon-eup, Harye-ri , Gosalli Forest Trail, 3.v.2022, leg. Ga-Eun Lee ( JNU) .

Diagnosis. Adult ( Figs 1B View FIGURE 1 , 3B View FIGURE 3 , 11F View FIGURE 11 ). Wingspan 8.0–12.0 mm. This species is superficially very similar to T. latistriata , T. contracta and T. projecta . Since those species display intraspecific variations in the wing pattern and color, it might be difficult to separate them based solely on such external characteristics. However, T. pancratiastis usually have the forewing marked with three white streaks in basal 1/3 between costa and fold whereas there are only one or two streaks in other three species. Another good diagnostic character separating those species is to compare the scape of antennae: T. pancratiastis has alternating black and white streaks dorsally whereas the scape is creamy white except the posterior margin fuscous or black in other three species. The coloration of female labial palpi is also slightly different in those species: the outer surface of segment II is fuscous to black in basal half in T. pancratiastis , but it is fuscous in basal 2/3 or 3/ 4 in other species. The male sternum VIII ( Fig. 25D View FIGURE 25 ) of T. pancratiastis is distinctive as it is pentagon-shaped whereas those of related species are subtriangular. The male genitalia ( Fig. 36B View FIGURE 36 ) can easily be distinguished from its allies by the larger anellus lobe with a robust apical bristle and the aedeagus with a well-developed coiled lamina. The female genitalia ( Fig. 52F View FIGURE 52 ) can be differentiated from T. latistriata and T. contracta by the smooth segment VIII without minute spines and the large cup-shaped antrum.

Variations. The specimens from Yunnan tend to be darker than those from other regions. The species shows minor variations in forewing color and patterns, especially in the length and width of streaks.

Biology. The larva is a leaf feeder ( Moriuti 1982) or a seed predator ( Fujita et al. 2009) on the host plant. In Japan, the adult occurs twice a year and overwinters as a larva ( Moriuti 1982).

Host plant. Myricaceae : Myrica rubra (Lour.) Siebold & Zucc. ( Moriuti 1982; Fujita et al. 2009; Sakamaki 2013).

Distribution. China (Chongqing, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Jiangxi, Taiwan, Yunnan, Zhejiang), Cambodia (new record), Japan, Korea, India.