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 globularis sp. nov. ( Figs 17E , 26O , 41C , 57F ) Type material. Holotype ♂ , CHINA, Yunnan Province , Pu’er City , Taiyanghe Nature Reserves , Yuyingtang , 1450 m , 21.iv.2015 , leg. Kaijian Teng , genitalia slide no. LGE18356 . Paratypes . CHINA : Yunnan Province : 3 ♀♀ , Baoshan ( 24.82°N , 98.78°E ), 2009 m , 17−20.vii.2015 , leg. Kaijian Teng and Xia Bai ; 2 ♀♀ , Xiaoheishan Nature Reserves ( 24.52°N , 98.84°E ), 1974 m , Longling County , 28, 30.vii.2015 , leg. Kaijian Teng and Xia Bai , genitalia slide no. LGE18355 ; Xizang Autonomous Region : 1 ♀ , Yadong Village ( 29.33°N , 95.34°E ), 833 m , Motuo County , 16.viii.2017 , leg. Mujie Qi and Xiaofei Yang , genitalia slide no. LGE18354; 1 ♀ , Yadong Village ( 29.33°N , 95.34°E ), 833 m , Motuo County , 2.viii.2018 , leg. Mujie Qi. Diagnosis. The new species can be confused with T. xizangensis in having a dark fuscous forewing simply marked with pink streaks distally, but the forewing span is larger and the markings are somewhat vivid in the former. The male genitalia of T. globularis are also similar to those of T. xizangensis , but differ from it by having a narrowed apex of valva and a markedly dilated base of the aedeagus. In the female genitalia, the ductus bursae is shorter and the corpus bursae is larger compared to those of T. xizangensis . Description. Adult ( Fig. 17E ). Wingspan 10.0−12.0 mm. Head dark brown to dark fuscous, usually mixed with light ochre anteriorly. Labial palpus dark fuscous, usually mixed with light ochre on dorsal surface, sometimes slightly tinged with pink; male segment II with hair pencil not exceeding apex of segment III; segment III as long as II, stout in male. Antenna dark brown to dark fuscous, male cilia very short. Thorax and tegula dark brown to dark fuscous. Forewing ground color dark brown to dark fuscous, apical area sometimes slightly mixed with brown, two somewhat reduced, black costal strigulae before apical spot, tinged with pink scales; apical spot moderate, usually surrounded by pink scales, apex falcate; other markings pink, more vivid in female: a slender costal streak from distal 1/2 or 2/3 of wing, obliquely extending to distal 1/3 or 1/4 of subcosta; beyond this, an outwardly oblique costal streak running from distal 1/4 toward tornus, bordered outwardly by black scales; two short streaks from upper and lower angle of discal cell, respectively, running toward apex, converging distad and nearly confluent with second costal streak before apex, sometimes indistinct; tornal streak short, running toward apical spot; fold sometimes marked with pink scales basally and distally; fringe on apical area dark fuscous to black, with a creamy medial band; fringe on termen with long fuscous scales and short metallic fuscous scales, usually mixed with pink basally; fringe on dorsum dark fuscous. Hindwing and fringe dark fuscous. Legs fuscous, usually mixed with grey and light ochre; mid and hind tarsi with each tarsomere cream apically. Male sternum VIII ( Fig. 26O ). 1/5 length of abdomen, lateral margins concave and narrowing toward posterior apex; posterior 1/3 bifid, each tine tapering toward pointed apex. Male genitalia ( Fig. 41C ). Uncus tongue-shaped, setose along round apical margin. Gnathos hook simple, long. Tegumen approximately 2.5 times as long as uncus. Valva with basal half curved inward and distal half curved outward, nearly same width from base to apex, apex narrowed on costa. Anellus lobe obovate, nearly as broad as valva, its costa setose; apical bristle 1/2 length of anellus lobe, hooked. Juxta simple, broadly concave. Vinculum slightly produced medially on posterior margin. Saccus short and broad, slightly exceeding tegumen pedunculus, blunt at apex. Aedeagus with basal half spherical, strongly narrowed beyond middle and slightly upcurved distally, blunt at apex; distal 1/3 with a tooth dorsally. Female genitalia ( Fig. 57F ). Papillae anales moderately sclerotized. Apophyses anteriores 2/3 length of apophyses posteriores. Tergum VIII short and concave posteriorly; sternum VIII twice as long as tergum VIII, strongly produced anteriorly. Ostium bursae large and rounded. Ductus bursae slender, with ductus seminalis arising from posterior 1/6. Corpus bursae obovate or round, 1/2 or 2/3 length of ductus bursae; signum round, at posterior 1/4 or 1/2, bulged inward, with minute denticles. Variations. The single male ( holotype ) has a darker forewing with reduced markings compared to females. Distribution. China ( Yunnan , Xizang ). Etymology. The species name is derived from Latin, globulus (small globe) and the suffix - aris , referring to the spherical basal half of the aedeagus.