Dichomeris obsepta ( Meyrick, 1935 )

Zhao, Shengnan, Park, Kyu-Tek, Bae, Yang-Seop & Li, Houhun, 2017, Dichomeris Hübner, 1818 (Lepidoptera, Gelechiidae, Dichomeridinae) from Cambodia, including associated Chinese species, Zootaxa 4273 (2), pp. 216-234 : 223-224

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.

Figures

FIGURES 1 – 7. Adults of Dichomeris spp. 1, D. arcuata sp. nov., holotype, male; 2, D. splendiptera, sp. nov., paratype, male; 3, D. orientis Park & Hodges, male; 4, D. samkosensis sp. nov., holotype, male; 5, D. foliforma, sp. nov., paratype, male; 6, D. fuscusitis Li & Zheng, female; 7, D. obsepta (Meyrick), male; 7 a, Male foreleg of D. obsepta (Meyrick). Scales: 1 – 7 = 5.0 mm; 7 a = 2.5 mm.

FIGURES 20 – 25. Male genitalia of Dichomeris spp. 20, D. obsepta (Meyrick), genitalia slide No. ZSN 15276; 21, D. magnimacularis sp. nov., holotype, genitalia slide No. L 00129; 22, D. hainanensis sp. nov., paratype, genitalia slide No. NKLEP 001; 23, D. microsphena Meyrick, genitalia slide No. 6724; 24, D. cambodiensis sp. nov., holotype, genitalia slide No. 6698; 25, D. matsumurai Ponomarenko & Ueda, male, genitalia slide No. 6685. Scales = 0.5 mm.

FIGURES 26 – 30. Male and female genitalia of Dichomeris spp. 26, Male genitalia of Dichomeris acutivalvata sp. nov., holotype, genitalia slide No. 6693. 27 – 30. Female genitalia: 27, D. orientis Park & Hodges, genitalia slide No. ZSN 16031; 28, D. foliforma, sp. nov., paratype, genitalia slide No. ZSN 15346; 29, D. fuscusitis Li & Zheng, genitalia slide No. ZSN 15369; 30, D. obsepta (Meyrick), genitalia slide No. ZSN 15371. Scales = 1.0 mm.