Dicranomyia (Erostrata) jejuensis sp. nov. A habitus, male (paratype) B head, female (paratype) C wing, male (paratype) D male seventh sternite, ventral view E male terminalia, dorsal view F aedeagal complex, dorsal view G paramere, lateral view H female terminalia, lateral view I tip of hypovalva, lateral view. Abbreviations: ad – aedeagus; cc – cercus; fl – flagellum; gc – gonocoxite; gf – genital fork; gs – gonostylus; hv – hypovalva; pd – pedicel; pl – palpus; pm – paramere; sc – scape; tb – tubercle; t9 – ninth tergite; vlg – ventromesal lobe of gonocoxite. Scale bars: 2 mm (A, C); 0.5 mm (B, D, E, H); 0.1 mm (F, G, I).