Thiotricha oxygramma Meyrick, 1918

Thiotricha oxygramma Meyrick, 1918 View in CoL

( Figs 20B View FIGURE 20 , 27I View FIGURE 27 , 28G View FIGURE 28 , 43E, M View FIGURE 43 , 60D View FIGURE 60 , 66E, F View FIGURE 66 , 73B View FIGURE 73 )

Thiotricha oxygramma Meyrick, 1918: 123 View in CoL ; 1925: 102; Gaede, 1937: 306; Clarke, 1969: 464; Ivinskis et al., 1984: 39. TL: Assam, India. TD: NHMUK.

Type material ( Figs 66E, F View FIGURE 66 , 73B View FIGURE 73 ). Holotype ♀, INDIA, Assam, Khasi Hills , x.1906, genitalia slide no. J. F.G.C. 8368 ( NHMUK).

Additional material examined. CHINA: Hainan Province: 1 ♀, Dialuoshan Nature Reserves ( 18.73°N, 109.87°E), 980 m, Lingshui County, 24.iv.2014, leg. Tengteng Liu, Wei Guan and Xuemei Hu GoogleMaps , genitalia slide no. LGE18360; 1 ♂, Jianfengling Nature Reserves ( 18.74°N, 108.84°E), 1050 m, Ledong County, 27.iv.2014, leg. Tengteng Liu, Wei Guan and Xuemei Hu GoogleMaps , genitalia slide no. LGE18359; 1 ♀, Limushan Nature Reserves ( 19.17°N, 109.74°E), 640 m, 1.v.2014, leg. Tengteng Liu, Wei Guan and Xuemei Hu GoogleMaps , genitalia slide no. LGE18791; 1 ♀, Diaoluoshan Nature Reserves ( 18.43°N, 109.52°E), 922 m, 25.v.2015, leg. Peixin Cong, Wei Guan and Sha Hu GoogleMaps ; 1 ♀, Shuiman Town ( 18.88°N, 109.67°E), 766 m, Wuzhishan City , 27.ii.2016, leg. Qingyun Wang, Suran Li and Shengnan Zhao GoogleMaps , genitalia slide no. LGE18792; Yunnan Province: 3 ♂♂, Mt. Xiaohei , 2300 m, Longling County, 10.viii.2005, leg. Yingdang Ren , genitalia slide nos. ZJL05385, ZJL05386; 1 ♂, 6 ♀♀, Xiaoheishan Nature Reserves ( 24.52°N, 98.84°E), 1974 m, Longling County, 17–19.vii.2013, leg. Shurong Liu, Yuqi Wang and Kaijian Teng GoogleMaps , genitalia slide no. LGE18706f; 9 ♂♂, 22 ♀♀, Taiyanghe Nature Reserves ( 22.79°N, 100.98°E), 1450 m, 31.iii−28. viii.2014, leg. Zhenguo Zhang GoogleMaps , genitalia slide no. LGE 18788m; 2 ♂♂, 2 ♀♀, Baoshan ( 24.82°N, 98.78°E), 2009 m, 10.viii.2014, leg. Kaijian Teng, Shurong Liu and Hua Rong GoogleMaps ; 1 ♂, 1 ♀, Xiaodifangxincun ( 24.87°N, 98.75°E), 2116 m, Tengchong County, 12.viii.2014, leg. Kaijian Teng, Shurong Liu and Hua Rong GoogleMaps ; 1 ♂, 2 ♀♀, Linjiapu ( 25.29°N, 98.70°E), 2144 m, Tengchong County, 15, 16.viii.2014, leg. Kaijian Teng, Shurong Liu and Hua Rong GoogleMaps ; 1 ♂, 9 ♀♀, Taiyanghe Nature Reserves, Pu’er City , 7–9.vi.2015, leg. Zhenguo Zhang , genitalia slide no. LGE18789f; 1 ♂, Yuyingtang, 1450 m, Taiyanghe Nature Reserves, Pu’er City , 24.iv.2015, leg. Kaijian Teng ; 1 ♂, Taiyanghe National Forest Park ( 22.79°N, 100.98°E), 1450 m, Pu’er City , 3.vii.2015, leg. Kaijian Teng GoogleMaps ; 1 ♂, Yexianggu ( 22.17°N, 100.87°E), 762 m, Xishuangbanna , 13.vii.2015, leg. Kaijian Teng and Xia Bai GoogleMaps ; 7 ♂♂, 3 ♀♀, Nankang Forest Station ( 24.82°N, 98.78°E), 2009 m, Baoshan City , 16, 17.vii.2015, leg. Kaijian Teng and Xia Bai GoogleMaps ; 5 ♂♂, 17 ♀♀, Gaoligongshan ( 24.83°N, 98.77°E), 2157 m, Baoshan City , 23, 24.vii.2015, leg. Kaijian Teng and Xia Bai GoogleMaps , genitalia slide no. LGE18790f; 36 ♂♂, 45 ♀♀, Xiaoheishan Nature Reserves ( 24.52°N, 98.84°E), 1974 m, Longling County, 27–30.vii.2015, leg. Kaijian Teng and Xia Bai GoogleMaps , genitalia slide nos. LGE 18357m, LGE18358f; 2 ♀♀, Xiajinguang ( 23.17°N, 104.8°E), 1470 m, Malipo County, Wenshan City , 26, 27.vii.2016, leg. Kaijian Teng, Ga-Eun Lee and Tao Wang. GoogleMaps

Diagnosis. Adult ( Fig. 20B View FIGURE 20 ). Wingspan 9.0− 12.5 mm. The forewing of T. oxygramma is much darker than those of related species and lacks the dark suffusion or streaks on dorsum. The male genitalia ( Fig. 43E, M View FIGURE 43 ) are characterized by the bulged ventral margin of valval base and the very reduced, minute anellus lobe. The female genitalia ( Fig. 60D View FIGURE 60 ) closely resemble those of T. lata , but can be differentiated from the species by having a larger colliculum situated close to ostium bursae, the ductus bursae nearly as long as corpus bursae and the signum situated at middle of corpus bursae.

Distribution. China ( Hainan, Yunnan), India.

Remarks. This species is recorded from China for the first time.