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 candidipalpa sp. nov. ( Figs 8H , 24C , 32E , 50A ) Type material. Holotype ♂ , CHINA, Hebei Province , Xinglong County , Mt. Wuling , Shuangyuanfeng ( 40.61°N , 117.45°E ), 800 m , 28.vii.2011 , leg. Houhun Li and Yanpeng Cai , genitalia slide no. LGE15041 . Paratypes . CHINA : Hebei Province : 2 ♂♂ , 1 ♀ , other data as holotype except 27–30.vii.2011 , genitalia slide nos. LGE 15042m , LGE 15043m , LGE15044f; Gansu Province : 1 ♂ , Dangchuan Forest Farm ( 34.34°N , 106.16°E ), 1331 m , Tianshui City , 30.vii.2006 , leg. Xinpu Wang and Xiangfeng Shi , genitalia slide no. LGE18559; Hubei Province : 1 ♂ , 1 ♀ , Shuangping ( 31.57°N , 109.87°E ), 1201 m , Zhuxi County , 5, 6.vii.2017 , leg. Wanding Qi et al ., genitalia slide nos. LGE 17068m , LGE17075f; Liaoning Province : 1 ♂ , Mt. Baiyun , Haicheng City , 12.vii.2010 , leg. Jiayu Liu and Yanpeng Cai , genitalia slide no. LGE18558; Tianjin Municipality : 1 ♂ , Heishuihe , 600 m , Mt. Baxian , 1.vii.2010 , leg. Mingrui Zhang and Shurong Liu , genitalia slide no. LGE18586; 1 ♂ , ditto, 24.vii.2010 , leg. Yinghui Sun and Shurong Liu , genitalia slide no. LGE18587; Zhejiang Province : 1 ♀ , Jiufucun ( 30.09°N , 118.93°E ), 520 m , Mt. Longtang , 27.viii.2014 , leg. Aihui Yin , Qingyun Wang and Suran Li , genitalia slide no. LGE18471. KOREA : 1 ♂ , Mt. Jirisan , Jeollanam-do , 23.vii.1985 , leg. K. T. Park , genitalia slide no. CIS-8052; 1 ♀ , Sogeumgang , Gangwon-do , 8.viii.1988 , leg. K. T. Park ; 1 ♂ , Kwangreung , Gyeonggi-do , 17.vi.1994 , leg. B. K. Byun & H. P. Jeong ; 3 ♂♂ , Is. Yeongheung-do , Ongjin-gun , Incheon Metropolitan City , 14.vii.2003 , leg. Lee , Kim & Song , genitalia slide no. LGE22112; 2 ♂♂ , Jidong 1-ri ( 36°34'03"N 128°03'44"E , 271 m ), Nongam-myeon , Mungyeong-si , Gyeongsangbuk-do , 29.vi.2008 , leg. Yeong-mi Park (all Korean materials are deposited in NIBR ). Diagnosis. This species is closely related to T. pontifera and the differences between two species are stated under the latter species. Compared to other species in this group, T. candidipalpa usually has a somewhat larger forewing with lighter ground color. The white labial palpus and the distally narrowed valva are diagnostic characters for this species. Description. Adult ( Fig. 8H ). Wingspan 8.5−12.0 mm. Head white. Labial palpus white and slender, segment III as long as II. Antenna with scape white, flagellum brown and dorsal surface strongly mixed with white, male cilia shorter than diameter. Thorax white, often with a very slender, light brown median line. Tegula white. Forewing ground color white to dirty-white, often slightly mixed with cream in distal half, apical spot large and round, its anterior and posterior margins bordered with white, the white scales sometimes forming two small spots, markings dark brown: a broad band along costa from base to distal 1/4, curved downward and narrowed beyond middle; a costal streak from between distal 1/3 and 1/4, gradually narrowed and running obliquely toward apical spot; beyond this a triangular costal patch before apical spot, separated from former streak by a narrow white streak; a short streak running from tornus to apical spot, confluent with costal streak before apical spot; a slender streak from basal 1/3 of dorsum, often interrupted by white scales on dorsum, running obliquely to basal 2/3 across wing, almost reaching end of costal band anteriorly; a slender streak from distal 1/4 of dorsum, running along fold toward base, then curved opposite direction at distal 1/3, confluent with costal and tornal streaks near apical spot; fringe on costa and termen dark fuscous with base white, somewhat metallic. Hindwing dark fuscous except subapex white and apex black; fringe fuscous, apical area white with a terminal dark fuscous band. Legs white; fore femur, tibia and tarsus dark fuscous on outer surface; mid and hind tibiae with an oblique black streak beyond middle on outer surface, respectively; mid tarsus with first tarsomere shortly fuscous at middle; hind tarsus with first tarsomere broadly fuscous at middle, second tarsomere fuscous in basal half, remaining tarsomeres strongly mixed with fuscous overall. Male sternum VIII ( Fig. 24C ). Approximately 1/6 length of abdomen, subtriangular, with lateral margins broadly convex, slightly concave before posterior apex; posterior apex rounded. Male genitalia ( Fig. 32E ). Uncus rounded, with long setae along apical margin. Gnathos hook long and simple. Tegumen approximately 4 times as long as uncus. Valva straight, with base narrow, then slightly broadened in basal 1/2, gradually narrowed in distal 1/2, rounded at apex. Anellus lobe clavate, basal 1/2 strikingly constricted, distal 1/2 bulbous; apical bristle 1/4 to 1/3 length of valva. Juxta slightly convex medially, with long sparse setae. Vinculum simple. Saccus elongate subtriangular, sometimes broader than width of valva. Aedeagus with basal 2/5 dilated, uniformly elongate distally, apex truncate or weakly pointed. Female genitalia ( Fig. 50A ). Papillae anales moderately sclerotized. Apophyses anteriores 3/5 length of apophyses posteriores. Tergum VIII broadly concave on anterior and posterior margins. Sternum VIII longer than tergum VIII, posterior 1/2 with an oblong sclerotization above ostium bursae, anterior margin strongly elongated. Ostium bursae opening at middle of sternum VIII. Ductus bursae short, with base narrow, abruptly broadened at inception of ductus seminalis, then gradually broadening toward corpus bursae. Corpus bursae elongate elliptical; signum small and rounded, situated at posterior 1/4 or 1/3, bulged inward, with minute denticles. Distribution. China ( Gansu , Hebei , Hubei , Liaoning , Tianjin , Zhejiang ), Korea . Etymology. The species name is derived from Latin, candidus (white) and palpi , referring to the white palpi. Remarks. This species was reported from Korea for the first time by Koo et al . (2020) as Thiotricha sp. Also, it is Thiotricha sp. 5 in Lee et al . (2021) for the phylogenetic study of Thiotrichinae . The genetic sequences are available from GenBank.