Dichomeris obsepta (Meyrick, 1935)

Figs 7, 7 a, 20, 30.

Orsodytis obsepta Meyrick, 1935: 70 . TL: China (Jiangsu). Dichomeris obsepta (Meyrick): Li & Zheng, 1996: 233.

Material examined. CAMBODIA: 1♂, Samkos (12°12'N, 102°52'E), 23.xii.2014, leg. Y. S. Bae et al., genitalia slide No. CIS-6687 (INU) . CHINA: Zhejiang Province: 1♂, Xiguan (30°21'N, 119°28'E), Mt. Tianmu, 566 m, 18.vii.2014, leg. Aihui Yin, Xuemei Hu and Qingyun Wang, genitalia slide No. ZSN15276 ; 1♂, Chishuicun (29°48'N, 121°12'E), Yinzhou County, Ningbo City, 450 m, 26.vii.2015, leg. Aihui Yin, Kang Lou and Tao Wang ; 3♂, Qianmutian (30°24'N, 119°26'E), Mt. Tianmu, 1320 m, 1.viii.2013, leg. Aihui Yin and Xiuchun Wang ; 4♂, Qianjiangyuan (30°23'N, 119°29'E), Mt. Tianmu, 866 m, 7–10.vii.2014, leg. Aihui Yin, Xuemei Hu and Qingyun Wang, genitalia slide No. ZSN15167 ; 3♂, Laoan (30°19'N, 119°24'E), Mt. Tianmu, 555 m, 3–5.vii.2014, leg. Aihui Yin, Xuemei Hu and Qingyun Wang, Genitalia slide no. ZSN15277 ; 2♂, Laoan (30°19'N, 119°24'E), Mt. Tianmu, 555 m, 13–15.vii.2015, leg. Aihui Yin, Kang Lou and Tao Wang, genitalia slide No. ZSN15163 ; 1♀, Zhangkengkou (28°19'N, 118°59'E), Mt. Jiulong, 623 m, 5.vii.2013, leg. Aihui Yin and Xiuchun Wang ; 1♀, Huangtanyu (28°23'N, 118°50'E), Mt. Jiulong, 467 m, 8.vii.2013, leg. Aihui Yin and Xiuchun Wang, genitalia slide No. ZSN15170 ; 9♂, 1♀, Ganzhuling (29°43'N, 121°04'E), Yuyao City, 853 m, 22–25. vii.2015, Aihui Yin, Kang Lou and Tao Wang, genitalia slide Nos. ZSN15168, ZSN15164, ZSN15057, ZSN15060, ZSN15371 ; 2♂, Yulingguan (30°06'N, 118°50'E), Qingliangfeng, 220 m, 23–24.vii.2014, leg. Aihui Yin, Xuemei Hu and Qingyun Wang, genitalia slide No. ZSN15165 ; 3♂, Jiufucun (30°05'N, 118°55'E), Mt. Longtang, 520 m, 25–26.vii.2014, leg. Aihui Yin, Xuemei Hu and Qingyun Wang, genitalia slide No. ZSN15059 ; 1♂, 1♀, Jiufucun Mt. Longtang, 520 m, 29–30.viii.2014, leg. Aihui Yin, Qingyun Wang and Suran Li, genitalia slide No. ZSN15169 ; 4♂, Pinggang (30°25'N, 119°33'E), Mt. Longxu, 754 m, 21–22.vii.2014, leg. Aihui Yin, Xuemei Hu and Qingyun Wang ; 12♂, 5♀, Wuyanling (27°19'N, 119°25'E), Taishun, 680 m, 28.vii–2.viii.2005, leg. Yunli Xiao, genitalia slide Nos. ZH 09082, ZH05017 ; 1♂, Wuyanling, Taishun, 790 m, 3.viii.2007, leg. Qing Jin ; 2♂, Qingliangfeng (30°08'N, 119°26'E), Lin’an, 900 m, 8–12.viii.2005, leg. Yunli Xiao ; 4♂, 1♀, Mt. Fengyang (27°53'N, 119°11'E), Longquan County, Lishui City, 1470 m, 26–31.vii.2007, leg. Qing Jin ; Guangdong Province: 2♂, Mt. Dadong (24°25'N, 112°13'E), Lianzhou, 650 m, 22–25.vi.2004, leg. Dandan Zhang ; 2♂, Nanling (25°16'N, 114°24'E), Shaoguan, 7.vii.2007, leg. Min Wang ; Anhui Province: 1♂, 1♀, Tangkou (30°03'N, 118°06'E), Huangshan City, 4– 5.viii.2004, leg. Jiasheng Xu and Jialiang Zhang ; Gansu Province: 1♀, Bifenggou (32°35'N, 104°25'E), Wen County, 860 m, 14.vii.2005, leg. Haili Yu ; Hunan Province: 1♂, Zhangjiajie (29°29'N, 110°16'E), 650 m, 7.viii.2001, leg. Houhun Li and Xinpu Wang ; Hainan Province: 2♂, Mt. Diaoluo (18°23'N, 109°32'E), 940 m, 1– 2.vi.2007, leg. Zhiwei Zhang and Weichun Li ; Guizhou Province: 1♂, Huguo Temple (27°55'N, 108°39'E), Mt. Fanjing, 1300 m, 3.viii.2001, leg. Houhun Li and Xinpu Wang ; Shaanxi Province: 1♂, Qinling (33°22'N, 106°16'E), 18–27.viii.2003, leg. Min Wang and Guohua Huang (NUK).

Distribution. Cambodia (Pursat), China (Anhui, Gansu, Guangdong, Guizhou, Hainan, Henan, Hubei, Hunan, Jiangsu, Jiangxi, Shaanxi, Zhejiang).

Diagnosis. Adult (Fig. 7) wingspan 15.0–18.5 mm. Dichomeris obsepta differs from its congeners by the male fore tibia having yellow hair pencils arising from the base of the inner surface (Fig. 7 a); the valvella suddenly shrunk at middle and distally broadened to before spine-shaped apical process and the aedeagus narrowed medially in the male genitalia (Fig. 20); and the ductus bursae with two sclerotized auricular plates in the female genitalia (Fig. 30).

This species is widely distributed in China, and it is newly reported for Cambodia.