A taxonomic review of Thiotricha Meyrick, 1886 (Lepidoptera, Gelechiidae, Thiotrichinae) from China, with descriptions of 84 new species Author Lee, Ga-Eun 0000-0002-5774-5850 College of Life Sciences, Nankai University, Tianjin 300071, China gaeunlee 486 @ gmail. com; https: // orcid. org / 0000 - 0002 - 5774 - 5850 & Research Institute for Basic Sciences, Jeju National University, Jeju 63243, Korea Corresponding author: lihouhun @ nankai. edu. cn; https: // orcid. org / 0000 - 0002 - 8953 - 3422 gaeunlee486@gmail.com Author Li, Houhun 0000-0002-5774-5850 College of Life Sciences, Nankai University, Tianjin 300071, China gaeunlee 486 @ gmail. com; https: // orcid. org / 0000 - 0002 - 5774 - 5850 & College of Life and Geographic Sciences, Kashi University, Kashi 844000, China; Xinjiang Key Laboratory of Biological Resources and Ecology of Pamirs Plateau, Kashi 844000, China gaeunlee486@gmail.com text Zootaxa 2024 2024-05-15 5449 1 1 222 http://dx.doi.org/10.11646/zootaxa.5449.1.1 journal article 10.11646/zootaxa.5449.1.1 1175-5334 11233121 CAC513A2-D2B4-4E6E-BAB6-CCE6E054680F Thiotricha lata sp. nov. ( Figs 4C , 19A, B , 27C , 28A , 42E , 43G , 59D ) Type material. Holotype ♂ , CHINA, Hainan Province , Jianfengling , Ledong County , Tianchi ( 18.74°N , 108.84°E ), 1050 m , 27.iv.2013 , leg. Yinghui Sun , Wei Guan and Tengteng Liu , genitalia slide no. LGE18745 . Paratypes . CHINA : Hainan Province : 11 ♂♂ , 18 ♀♀ , same data as holotype except LGE 18744m , NKLGE016m ; 27 ♂♂ , 33 ♀♀ , Mt. Diaoluo ( 18.67°N , 109.94°E ), 940 m , 31.v–2.vi.2007 , leg. Zhiwei Zhang and Weichun Li , genitalia slide no. LGE 18753m ; 29 ♂♂ , 36 ♀♀ , Jian ¬fengling ( 18.73°N , 108.91°E ), 940 m , 4–7.vi.2007 , leg. Zhiwei Zhang and Weichun Li , genitalia slide nos. LGE18754f, LGE18755f; 1 ♀ , Nanchahe ( 19.22°N , 109.43°E ), 600 m , Bawangling , 10.vi.2007 , leg. Zhiwei Zhang and Weichun Li ; 7 ♂♂ , 10 ♀♀ , Tianchi , 790–810 m , Jianfengling , 30.iii–1.iv.2008 , leg. Bingbing Hu and Haiyan Bai ; 2 ♂♂ , 2 ♀♀ , Bawangling , 1000 m , 6, 9.iv.2008 , leg. Bingbing Hu and Haiyan Bai ; 1 ♂ , Mt. Limu , 700 m , 15.iv.2008 , leg. Bingbing Hu and Haiyan Bai ; 1 ♀ , Mt. Diaoluo ( 18.66°N , 109.93°E ), 250 m , 22.iv.2008 , leg. Bingbing Hu and Haiyan Bai ; 1 ♂ , Wuzhishan Nature Reserves ( 18.90°N , 109.67°E ), 740 m , 14.iv.2009 , leg. Qing Jin and Bingbing Hu ; 1 ♂ , 3 ♀♀ , Shuiman Town ( 18.88°N , 109.67°E ), 630 m , Wuzhishan City , 16, 17.iv.2009 , leg. Qing Jin and Bingbing Hu ; 1 ♂ , Jianfengling ( 18.73°N , 108.91°E ), 800−900 m , 4.xii.2009 , leg. Zhaohui Du and Linlin Yang ; 1 ♂ , Yinggeling ( 19.08°N , 109.50°E ), 620 m , 9.xii.2009 , leg. Zhaohui Du and Linlin Yang ; 1 ♂ , 1 ♀ , Shuiman Town ( 18.88°N , 109.67°E ), Wuzhishan City , 31.v–1.vi.2010 , leg. Bingbing Hu and Jing Zhang ; 1 ♂ , 2 ♀♀ , Tianchi , Jianfengling , 12, 21.vi.2010 , leg. Bingbing Hu and Jing Zhang ; 3 ♂♂ , 5 ♀♀ , Tianchi ( 18.74°N , 108.84°E ), 1050 m , Jianfengling , Ledong County , 29, 30.iv.2013 , leg. Yinghui Sun , Wei Guan and Tengteng Liu ; 1 ♂ , 1 ♀ , Hongxin Village ( 19.08°N , 109.52°E ) 430 m , Yuanmen , Baisha County , 17.iv.2014 , leg. Tengteng Liu , Wei Guan and Xuemei Hu ; 1 ♂ , 3 ♀♀ , Fanye Village ( 18.87°N , 109.67°E ), 430 m , Shuiman Town , Wuzhishan City , 21, 22.iv.2014 , leg. Tengteng Liu , Wei Guan and Xuemei Hu ; 4 ♂♂ , 2 ♀♀ , Dialuoshan Nature Reserves ( 18.73°N , 109.87°E ), 980 m , Lingshui County , 23, 24.iv.2014 , leg. Tengteng Liu , Wei Guan and Xuemei Hu , genitalia slide no. LGE 18746m ; 1 ♂ , 1 ♀ , Tropical Arboretum ( 18.70°N , 108.79°E ), 40 m , Jianfeng Town , Ledong County , 29, 30.iv.2014 , leg. Tengteng Liu , Wei Guan and Xuemei Hu ; 5 ♂♂ , 3 ♀♀ , Limushan Nature Reserves ( 19.17°N , 109.74°E ), 640–700 m , 1–4.v.2014 , leg. Tengteng Liu , Wei Guan and Xuemei Hu , genitalia slide no. LGE18747f; 2 ♀♀ , Wuzhishan Nature Reserves ( 18.88°N , 109.65°E ), 742 m , 3,4. vii.2014 , leg. Peixin Cong , Linjie Liu and Sha Hu ; 7 ♂♂ , 11 ♀♀ , Jianfengling Nature Reserves ( 18.74°N , 108.87°E ), 770 m , Ledong County , 15–17.vii.2014 , leg. Peixin Cong , Linjie Liu and Sha Hu , genitalia slide no. LGE 18766m ; 11 ♂♂ , 11 ♀♀ , Limushan Forest Park ( 19.17°N , 109.73°E ), 607 m , 25.vii.2014 , leg. Peixin Cong , Linjie Liu and Sha Hu ; 9 ♂♂ , 9 ♀♀ , Limushan Forest Park ( 19.17°N , 109.74°E ), 607 m , 12−17.v.2015 , leg. Peixin Cong , Wei Guan and Sha Hu ; 15 ♂♂ , 31 ♀♀ , Wuzhishan Nature Reserves ( 18.88°N , 109.65°E ), 742 m , 18−22.v.2015 , leg. Peixin Cong , Wei Guan and Sha Hu ; 1 ♂ , 4 ♀♀ , Diaoluoshan Nature Reserves ( 18.43°N , 109.52°E ), 922 m , 25, 27.v.2015 , leg. Peixin Cong , Wei Guan and Sha Hu ; 2 ♂♂ , 1 ♀ , Jianfengling Nature Reserves ( 18.74°N , 108.87°E ), 770 m , Ledong County , 29.v–1.vi.2015 , leg. Peixin Cong , Wei Guan and Sha Hu ; 2 ♂♂ , 3 ♀♀ , Hongkan ( 19.08°N , 109.50°E ), 508 m , Yinggeling , 15, 16.vi.2015 , leg. Peixin Cong , Wei Guan and Sha Hu ; 4 ♂♂ , 2 ♀♀ , Shuiman Town ( 18.88°N , 109.67°E ), 766 m , Wuzhishan City , 5–7.vii.2015 , leg. Qingyun Wang , Suran Li and Mengting Chen , genitalia slide no. LGE 18757m ; 10 ♂♂ , 7 ♀♀ , Tianchi ( 18.73°N , 108.87°E ), 787 m , Jianfengling , 11−17.vii.2015 , leg. Qingyun Wang , Suran Li and Mengting Chen ; 1 ♂ , Limushan Nature Reserves ( 19.17°N , 109.73°E ), 632 m , 6.i.2016 , leg. Kaijian Teng , Xia Bai and Mengting Chen ; 2 ♀♀ , Wuzhishan National Park ( 18.88°N , 109.67°E ), 766 m , 9.i.2016 , leg. Kaijian Teng , Xia Bai and Mengting Chen ; 2 ♂♂ , 4 ♀♀ , Tianchi ( 18.73°N , 108.87°E ), 787 m , Jianfengling , 13–16.i.2016 , leg. Kaijian Teng , Xia Bai and Mengting Chen , genitalia slide no. LGE16062f; 3 ♂♂ , 2 ♀♀ , Shuiman Town ( 18.88°N , 109.67°E ), 766 m , Wuzhishan City , 27, 28.ii.2016 , leg. Qingyun Wang , Suran Li and Shengnan Zhao ; 15 ♂♂ , 7 ♀♀ , Tianchi ( 18.73°N , 108.87°E ), 787 m , Jianfengling , 4−10.iii.2016 , leg. Qingyun Wang , Suran Li and Shengnan Zhao , genitalia slide nos. LGE 18826m , LGE18827f; 3 ♂♂ , 2 ♀♀ , Wuzhishan Nature Reserves ( 18.90°N , 109.67°E ), 738 m , 22.vii−2.xi.2016 , leg. Xia Bai , Shuonan Qian and Wanding Qi ; 1 ♂ , Yinggezui ( 19.05°N , 109.56°E ), 700 m , Yinggeling , 13.v.2017 , leg. Xiaofei Yang ; 1 ♀ , Mt. Wuzhi ( 18.91°N , 109.68°E ), 733 m , 21.xii.2017 , leg. Mujie Qi and Shuai Yu ; 2 ♂♂ , Jianfengling Nature Reserves ( 18.75°N , 108.87°E ), 811 m , Ledong County , 12.i.2018 , leg. Mujie Qi and Shuai Yu ; 8 ♂♂ , 10 ♀♀ , Jianfengling ( 18.75°N , 108.87°E ), 810 m , Ledong County , 12–15.vi.2018 , leg. Ping Liu , Xia Bai and Shuai Yu ; 3 ♂♂ , 1 ♀ , Shuiman Town ( 18.88°N , 109.67°E ), 640−650 m , Wuzhishan City , 15, 20.v.2007 , leg. Zhiwei Zhang and Weichun Li ; 1 ♂ , 1 ♀ , Mt. Wuzhi ( 18.87°N , 109.68°E ), 700 m , 18, 19.v.2007 , leg. Zhiwei Zhang and Weichun Li ; Chongqing Municipality : 1 ♀ , Tudiyan , 1200 m , Mt. Simian , 15.vii.2012 , leg. Yinghui Sun and Aihui Yin ; 1 ♀ , Beipo , 1100 m , Mt. Jinpo , 5.v.2013 , leg. Xiaofei Yang , genitalia slide no. LGE18461; Guangxi Zhuang Autonomous Region : 2 ♂♂ , Mt. Pinglong ( 22.15°N , 107.98°E ), 510 m , Shangsi , 6.iv.2002 , leg. Shulian Hao and Huaijun Xue , genitalia slide nos. ZJL05306, ZJL05315; 4 ♂♂ , 3 ♀♀ , Shaoping Forest ( 22.06°N , 106.98°E ), 280 m , Pingxiang , 19–28.iii.2012 , leg. Xiaofei Yang , genitalia slide no. LGE 18756m ; 1 ♀ , Shuolong Town ( 22.83°N , 106.83°E ), Daxin , Chongzuo , 295 m , 5.vii.2013 , leg. Xiaofei Yang ; Guizhou Province : 1 ♂ , Maojia Village , 800 m , Mayang River , 5.x.2007 , leg. Hui Zhen ; 2 ♀♀ , Fangxiang Town ( 26.44°N , 108.27°E ), 910 m , Leishan County , 2.viii.2018 , leg. Meiling Zheng , Jiaqi Deng and Xiaoju Zhu ; Jiangxi Province : 1 ♀ , Mt. Jiulian , 20.vii.2006 , leg. Jiasheng Xu and Weichun Li ; Taiwan Province : 1 ♂ , Chingshan , 1100 m , Taichung County , 31.viii−4.ix.1988 , leg. J. Heppner and H. Wang , genitalia slide no. MGCL-NK16 ( MGCL ); 1 ♂ , Dona , 16 Km NE . Maolin , 500 m , Kaosiung County , 3.xi.1984 , leg. J. Heppner and H. Wang , genitalia slide no. MGCL-NK22 ( MGCL ); Xizang Autonomous Region : 1 ♂ , Rikaze City , 3850 m , 24.viii.2003 , leg. Xinpu Wang and Huaijun Xue , genitalia slide no. ZJL05195; 1 ♂ , Beibeng Town ( 29.25°N , 95.18°E ), 810 m , Motuo County , 13.viii.2017 , leg. Mujie Qi and Xiaofei Yang ; Yunnan Province : 2 ♂♂ , Jinghong City , 550 m , 23.xi.1987 , leg. Houhun Li , genitalia slide nos. ZJL05118, ZJL05138; 2 ♀♀ , Mt. Xiaohei , 2300 m , Longling County , 10.viii.2005 , leg. Yingdang Ren , genitalia slide no. ZJL05401; 1 ♂ , Bubang ( 21.6°N , 101.59°E ), 650 m , Mengla County , 25.viii.2005 , leg. Yingdang Ren , genitalia slide no. ZJL05442; 2 ♀♀ , Wenquan ( 24.97°N , 103.01°E ), Kunming , 1900 m , 30.viii.2005 , leg. Yingdang Ren , genitalia slide no. ZJL05383; 2 ♂♂ , 1 ♀ , Caiyanghe , Pu’er City , 26.viii.2009 , leg. Xicui Du ; 7 ♂♂ , 13 ♀♀ , Tropical Botanical Garden ( 21.92°N , 101.27°E ), 560 m , Xishuangbanna , 1–4.viii.2010 , leg. Yinghui Sun and Lixia Li , genitalia slide no. LGE 18761m ; 1 ♂ , Mt. Dawei , 1800 m , Pingbian County , Honghe , 7.xi.2010 , leg. Bingbing Hu , Jing Zhang and Yanpeng Cai ; 1 ♂ , 4 ♀♀ , Nanlahe ( 21.59°N , 101.58°E ), 652 m , Bubang Town , Mengla County , 11.vii.2013 , leg. Shurong Liu , Yuqi Wang and Kaijian Teng ; 1 ♀ , Xiaoheishan Nature Reserves ( 24.52°N , 98.84°E ), 1974 m , Longling County , 17.vii.2013 , leg. Shurong Liu , Yuqi Wang and Kaijian Teng ; 1 ♀ , Tongbiguan Conservation Station , Yingjiang County , 5.viii.2013 , leg. Shurong Liu , Yuqi Wang and Kaijian Teng ; 18 ♂♂ , 15 ♀♀ , Taiyanghe Nature Reserves ( 22.79°N , 100.98°E ), 1450 m , 13.v−2.ix.2014 , leg. Zhenguo Zhang , genitalia slide nos. LGE 18383m , LGE 18774m ; 2 ♀♀ , Yexianggu ( 22.17°N , 100.87°E ), 762 m , Xishuangbanna , 17, 19.vii.2014 , leg. Kaijian Teng , Wei Guan , Xiuchun Wang and Shurong Liu ; 2 ♀♀ , Xiaodifangxincun ( 24.87°N , 98.75°E ), 2116 m , Tengchong County , 11.viii.2014 , leg. Kaijian Teng , Shurong Liu and Hua Rong ; 4 ♂♂ , 2 ♀♀ , Linjiapu ( 25.29°N , 98.70°E ), 2144 m , Tengchong County , 15, 16.viii.2014 , leg. Kaijian Teng , Shurong Liu and Hua Rong , genitalia slide nos. LGE 16201m , LGE16202f, LGE 18460m ; 1 ♀ , Baoshan ( 24.82°N , 98.78°E ), 2009 m , 17.viii.2014 , leg. Kaijian Teng , Shurong Liu and Hua Rong ; 5 ♂♂ , 4 ♀♀ , Taiyanghe Nature Reserves , Pu’er City , 25.v–9.vi.2015 , leg. Zhenguo Zhang , genitalia slide no. LGE18372f; 1 ♀ , Taiyanghe National Forest Park ( 22.79°N , 100.98°E ), 1450 m , Pu’er City , 5.vii.2015 , leg. Kaijian Teng ; 1 ♀ , Nankang Forest Station ( 24.82°N , 98.78°E ), 2009 m , Baoshan City , 17.vii.2015 , leg. Kaijian Teng and Xia Bai ; 2 ♀♀ , Gaoligongshan ( 24.83°N , 98.77°E ), 2157 m , Baoshan City , 24.vii.2015 , leg. Kaijian Teng and Xia Bai ; 4 ♂♂ , 2 ♀♀ , Xiaoheishan Nature Reserves ( 24.52°N , 98.84°E ), 1974 m , Longling County , 27–30.vii.2015 , leg. Kaijian Teng and Xia Bai , genitalia slide no. LGE 18459m ; 2 ♂♂ , 1 ♀ , 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 , genitalia slide no. LGE 16296m ; 2 ♂♂ , 2 ♀♀ , Wufenchang ( 21.72°N , 100.15°E ), 640 m , 2.viii.2016 , leg. Kaijian Teng , Ga-Eun Lee and Tao Wang ; 2 ♂♂ , Qinlangdang Conservation Station ( 27.69°N , 98.27°E ), 380 m , Gaoligongshan Nature Reserves , Nujiang , 29.v.2017 , leg. Kaijian Teng et al ., genitalia slide no. LGE17250; VIETNAM : 1 ♂ , Tam Dao National Park , 750 m , 15.viii.2005 , leg. K. T. Park , M. Y. Kim & M. Y. Chae , genitalia slide no. LGE22104 ( KNA ). Diagnosis. In superficial appearance, T. lata resembles very closely T. emarginata , but the suffusion of fuscous scales on dorsum is darker and the fore coxa is strongly suffused with dark fuscous in T. lata . Moreover, the two species can be separated more easily by the hind tibia in that of T. lata is fuscous along the dorsal margin whereas that of T. emarginata is uniformly colored. The male antennal ciliation of T. lata is slightly longer than that of T. emarginata . In the abdominal segments of both sexes of T. lata , the tergum I is notable as it is melanized at middle in a circle or a subtriangle. The male sternum VIII is much shorter and the posterior apex does not bear long tines compared to the related species. The male genitalia are distinguished from its allies by the basal projection of the uncus and the valva gradually narrowed distally. The female genitalia are similar to those of T. emarginata and T. pediformis , but the anterior margin of sternum VIII is more broadly sclerotized in T. lata compared to the latter two species. Description. Adult ( Figs 19A, B ). Wingspan 7.5−11.5 mm . Head glossy white or creamy white. Labial palpus creamy white, with segment I very short; segment III as long as II, fuscous ventrally and apically. Antenna with scape creamy white; flagellum dark fuscous except basal 1/3 or 1/4 of dorsal surface white, male cilia twice as long as diameter. Thorax glossy creamy white except posterior half strongly mixed with dark fuscous at middle, a fuscous median line often present. Tegula creamy white. Forewing glossy creamy white to yellowish white, anterior edge of costa black, markings dark fuscous to black: a wedge-shaped costal streak from between distal 1/4 and 1/3 of wing, attenuated distally, obliquely running toward apex and nearly reaching apical spot, followed by and confluent with a shorter costal streak extended from distal 1/5; beyond this light brown scales along costa, often forming a triangular patch reaching apex; below this sometimes with an indistinct fuscous spot; apical spot round, bordered inwardly by creamy white scales, sometimes shortly extending along termen; a broad, dark fuscous suffusion along dorsum from near base to 1/2 or 2/3, sometimes distinctly dark as a band, followed by an inwardly directed Vshaped marking, the upper fork of this nearly reaching apical spot and often confluent with costal streaks, the lower fork much shorter and running along fold; a short longitudinal streak near tornus, running in parallel with the lower fork of former marking but not reaching it; fringe on apical area creamy white with subterminal and terminal black bands, produced downwards and bifurcate; fringe on termen grey except base white, near apex with a row of coarse metallic fuscous ciliation; fringe on dorsum grey. Hindwing grey to dark grey except subapex white and apex black; fringe grey except apical area creamy white with a terminal black band. Legs creamy white; fore coxa dark fuscous to black in anterior 2/3; fore femur, tibia and tarsus black on outer surface; mid and hind tibiae with a short dark fuscous streak near apex, respectively, hind tibia dark fuscous along dorsal margin; mid and hind tarsi with first tarsomere broadly dark fuscous at middle, II–III tarsomeres dark fuscous in basal half. Abdominal segments ( Figs 27C , 28A ). In both male and female, tergum I melanized at middle in circle or in subtriangular. In male, sternum VIII approximately 1/10 length of abdomen; lateral margins gradually narrowing from base to posterior 1/5, then almost uniformly elongate to apex; posterior apex emarginate medially; tergum VIII subtrapezoidal, with a pair of mediolateral arms arising from anterior margin of tergum III and connected to tegumen pedunculus, lateral margin with a pair of long coremata, near posterior margin with large petal-like scales mediolaterally. Male genitalia ( Figs 42E , 43G ). Uncus broad, mitre-shaped, ventral surface with a short projection near base. Gnathos hook long and slender. Tegumen twice as long as uncus. Valva very broad, gradually narrowing from basal 1/3 or 1/2 to apex, rounded apically. Anellus lobe extremely small, oval, nearly invisible. Juxta strongly convex medially, hummock-like. Vinculum simple, narrowed. Saccus very short, slender, not exceeding tegumen pedunculus. Aedeagus with basal 2/5 dilated, slightly narrowed and straight distally, near apex slightly twisted, bearing short projections on dorsal and ventral margins, round at apex. Female genitalia ( Fig. 59D ). Papillae anales weakly sclerotized. Apophyses anteriores approximately half length of apophyses posteriores. Sternum VIII longer than tergum VIII, weakly sclerotized medially, anterior margin produced in U-shape. Ostium bursae opening at middle of sternum VIII. Ductus bursae short, with a triangular colliculum near base, anterior half slightly broadened, ductus seminalis arising from posterior 2/5 or 1/2. Corpus bursae ovate, as long or slightly shorter than ductus bursae; signum rounded, consisting of minute denticles, placed near entrance of ductus bursae or at posterior 1/3. Variations. Some specimens from Yunnan are yellower than the specimens from other regions. FIGURE 19. Adults of Thiotricha spp. A , T. lata sp. nov. , ♂, holotype; B, ditto, ♂, paratype; C, T. emarginata sp. nov. , ♂, holotype; D, T. pediformis sp. nov. , ♂, holotype; E, T. curviciliaris sp. nov. , ♂, holotype; F, ditto, enlarged view of costal ciliation; G, T. recticiliaris sp. nov. , ♂, holotype; H, ditto, enlarged view of costal ciliation. Distribution. China ( Chongqing , Guangxi , Guizhou , Hainan , Jiangxi , Taiwan , Xizang, Yunnan), Vietnam . Etymology. The species name is from Latin, latus (broad), referring to the broad valva. Remarks. The species name was suggested by Jialiang Zhang who previously studied Chinese Thiotricha in NKU.