Description of a new species and two new records of the family Cosmopterigidae (Lepidoptera) from Korea Author Kim, So-Yeon So-Yeon Kim, Hanam Techno Valley U 1 Center Building, Hanam 12982, Republic of Korea. Author Sinev, Sergey Yu. Sergey Yu. Sinev, Zoological Institute, Russian Academy of Sciences, 1 Universitetskaya Emb., St Petersburg 199034, Russia. Author Byun, Bong-Kyu 0000-0003-0393-6464 bkbyun@hnu.ac.kr text Zootaxa 2024 2024-08-21 5496 4 588 594 http://dx.doi.org/10.11646/zootaxa.5496.4.8 journal article 10.11646/zootaxa.5496.4.8 1175-5326 13617782 067AD401-EC10-4C7C-8BDC-DEBE0380F942 Macrobathra nomaea Meyrick, 1914 ( Figure 3 , 6, 6a, 7, 7a ) Macrobathra nomaea Meyrick, 1914: 217 . Type locality: Ceylon , Colombo, Peradeniya. Type depository: NHMUK. Material . KOREA : GG, 1#, Mt. Kalbong , 9 vii 2011 , leg. B.W. Lee , genitalia slide no. HNUSEL-6192 ( HNUSEL ) ; 1#, Lake Yuklim , 16 vii 2015 , leg. S.Y. Park , genitalia slide no. HNUSEL-5944 ( KNAE ) ; 1 f#, Lake Yuklim , 6 vii 2017 , leg. Lee , Rho , Shin , Shon & Choi , genitalia slide no. HNUSEL-5943 ( KNAE ) ; 1 m #, Gwangju-si , 21 vi 2018 , leg. B.K. Byun , genitalia slide no. HNUSEL-6497 ( HNUSEL ) ; CN, 1 f#, Mt. Yeonmi , 11 vii 2015 , leg. B.K. Byun , genitalia slide no. HNUSEL-5968 ( HNUSEL ) ; US , 4 f#, Ulju-gun , 25 vii 2018 , leg. B.K. Byun , genitalia slide nos. HNUSEL-5896, 5945, 5966, 5967 ( HNUSEL ) ; 2 f#, Ulju-gun , 25 vii 2018 , leg. D.S. Kim , genitalia slide nos. HNUSEL-6503, 6504 ( HNUSEL ) . Description ( Fig. 3 ). Wingspan 9–11 mm . Head covered with smooth yellowish scales.Antenna blackish brown; scape with scattered yellowish scales; flagellum with yellowish rings. Labial palpus long and curved upwards, yellowish, apex with dark brown scales. Thorax blackish brown. Legs dark brown with white rings. Forewing blackish brown; antemedian lemony cream line wide; three lemony cream dots at 1/2 and 5/6 of costal margin and 2/3 of dorsal margin; cilia whitish brown to dark brown. Hindwing pale fuscous; cilia pale brown. Abdomen shining dark fuscous. Male genitalia ( Fig. 6, 6a ). Brachia elongated triangular, symmetrical and heavily sclerotized. Valvae short, asymmetrical, with few elongated setae; left valva shorter, thicker, and slightly more sclerotized. Vinculum slightly sclerotized. Saccus 2 times the length of the right valva, slender. Aedeagus thick and long, 2/3 the length of saccus. Female genitalia ( Fig. 7, 7a ). Papillae anales long and rounded, setose. Sterigma long and parallel-sided, well sclerotized. Ductus bursae rather wide; ductus seminalis wide and short. Corpus bursae oval, with two symmetrical, hook-shaped and strongly sclerotized signa. Distribution . Korea (new record), China ( Zhang & Li 2023 ), Russia ( Sinev 2019 ), Sri Lanka , India , Nepal , Pakistan . Biology. Bred from refuse lodged in a fork of Tamarindus indica ( Fabaceae ); no doubt the larva fed on the leaves as usual in the genus ( Fletcher 1920 ). Probably can develop on other fabaceous plants as well.