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 albimaculata sp. nov. ( Figs 10F , 24Q , 35A ) Type material. Holotype ♂ , CHINA, Hainan Province , Jianfengling , Tianchi ( 18.73°N , 108.87°E ), 787 m , 15.vii.2015 , leg. Qingyun Wang , Suran Li and Mengting Chen , genitalia slide no. LGE16024 . Paratypes . CAMBODIA : 3 ♂♂ , Samkos , Alt. 960 m (N 12°12'50.0" E 102°53'57.00"), 8.ii.2014 , leg. Y. S. Bae , Y. D. Ju, Mujie Qi, B. S . Park, S. M . Na, J. W . Kim and D. J. Lee , genitalia slide nos. INU-NK26, INU-NK28, INU-NK29 ( INU ); 1 ♂ , Samkos, Alt. 310 m (N 12°18'16.0" E 103°06'7.00"), 9.ii.2014 , leg. Y. S. Bae , Y. D. Ju, Mujie Qi, B. S . Park, S. M . Na, J. W . Kim and D. J. Lee , genitalia slide no. INU-NK30 ( INU ); 1 ♂ , Samkos , Alt. 934 m (N 12°12'38.8" E 102°53'54.3"), 8.ii.2015 , leg. Y. S. Bae , B. S. Park, S. M . Na, J. W . Kim and D. J. Lee , genitalia slide no. INU-NK20 ( INU ) . Diagnosis. The forewing markings are very similar to those of T. cochlearis , and the differences are stated under the latter species. The male genitalia are diagnosed by the spatulate apex of valva, the broad saccus and the aedeagus with a short triangular projection at basal 2/3. Description. Adult ( Fig. 10F ). Wingspan 9.5–12.0 mm. Head creamy white to light ocher, sometimes tinged with fuscous scales posteriorly. Labial palpus creamy white to light ocher; segment III slightly longer than II, usually tipped black. Antenna creamy white, distal 2/3 of flagellum alternately annulated black and ochre, male cilia shoter than diameter. Thorax creamy white to light ochre, usually with a broad fuscous median streak, tinged with carmine-pink anteriorly. Tegula creamy white to light ochre, inner margin sometimes strongly or slightly suffused with carmine-pink. Forewing ground color whitish ochre, often scattered with carmine-pink; costa with anterior edge black in basal 2/5, dark brown in distal 1/5; apical spot usually very reduced, bordered inwardly by grey scales; dorsum with a very large, semicircular white patch in basal 1/3 and after middle of wing, respectively, each patch surrounded by a narrow rim of carmine-pink scales, the scales often indistinct or absent; other markings dark brown: base often with a minute spot below costa; a costal spot at basal 1/3, sometimes enlarged and elongate; a broad, oblique band arising from near base of dorsum, longitudinally running over two white patches close to costa, curved downward after middle and reaching distal 1/4 of dorsum, interrupted by white scales near lower angle of discal cell, its posterior margin sometimes bordered by carmine-pink scales; two narrow, sometimes indistinct longitudinal streaks from distal 1/4 of wing, confluent with apical spot distally, sometimes bordered by carmine-pink scales; fringe on apex dark brown with a creamy white basal band, on termen carmine-pink with a metallic terminal band, on tornus creamy white, on dorsum grey sometimes tined with pink. Hindwing and fringe dark fuscous. Legs creamy white, slightly suffused with ochre; fore femur, tibia and tarsus black on outer surface; an oblique black streak after middle of mid tibia and near apex of hind tibia, respectively; mid and hind tarsi with an oblique black streak at middle of tarsomere I and base of tarsomeres II and III, respectively. Male sternum VIII ( Fig. 24Q ). Slightly shorter than 1/4 length of abdomen, with lateral margins gradually narrowed, bifurcate from posterior 1/4; inner margin U-shaped between two tines, pointed at apex. Male genitalia ( Fig. 35A ). Uncus tongue-shaped. Gnathos hook moderately long, simple. Tegumen approximately 3 times as long as uncus. Valva narrow, slightly constricted from basal 1/3, then broadened from 2/3, apex spatulate. Anellus lobe approximately 1/4 length of valva, slender and digitate, with base slightly curved inward; apex round, without apical bristle. Juxta broadly convex. Vinculum convex medially. Saccus very broad and short, not exceeding tegumen pedunculus. Aedeagus with basal 1/3 dilated, cylindrical to 2/3, narrowed distally; dorsal margin with a short triangular projection at 2/3; apex rounded. Female unknown. Variation. Three specimens from Cambodia have somewhat darker forewings without pink scales except at the apex . Distribution. China ( Hainan ), Cambodia . Etymology. The species name is derived from Latin albus (white) and maculatus , referring to the white dorsal markings of the forewing.