Key to the adults of Eudarcia in Korea 1. Dark brown transverse stripes present on the forewing (Figs. 5–7)......................................................... 2 — Forewing without dark brown transverse stripes (Fig. 8); forked veins absent in the forewing (Fig. 24); uncus of male genitalia very bilobed (Fig. 16); ductus seminalis of female genitalia well developed (Fig. 20).............................. E. cornea Roh & Byun sp. nov. 2. Phallus of male genitalia without cornuti (Fig. 12); venation of forewing: Rs1 and Rs2 fused; Rs3 and Rs4 forked at base of 2/5 Rs3 (Fig. 22); antrum weakly developed in the female genitalia (Fig. 18).......................... E. gwangneungensis Roh & Byun sp. nov. — Male genitalia with cornuti in the phallus (Figs. 10, 14); venation of forewing: Rs1 and Rs2 forked at 1/4 of the base; Rs3 and Rs4 forked at anterior margin of distal corner of discal cell (Figs. 21, 23); antrum of female genitalia well developed (Figs. 17, 19).............. 3 3. Male genitalia (Figs. 13, 14): valva furcate with digitiform and apical part of ampulla right-angled; uncus partly elongated and hooked; saccus blunt shaped; ductus bursae longer than corpus bursae in the female genitalia (Fig. 19)..... E. longiphalla Roh & Byun sp. nov. — Male genitalia (Figs. 9, 10): valva not furcated and apical part of ampulla blunt shaped; uncus part deeply concave and bilobed; saccus elongated downward and very slender; ductus bursae of female genitalia shorter than corpus bursae (Fig. 17)......................................................................................................... E. orbiculidomus (Sakai & Saigusa)

Published as part of Roh, Seung Jin & Byun, Bong-Kyu, 2019, The Meessiidae (Lepidoptera: Tineoidea) of Korea, pp. 65-75 in Florida Entomologist 102 (1) on page 67, DOI: 10.1653/024.102.0110, http://zenodo.org/record/11522349