Eucosmini Meyrick, 1909 is one of the largest groups in subfamily Olethreutinae, with more than 1,650 species of 128 genera. In Korea, 96 species of 26 genera have been recorded by several authors (Park, 1981, Bae, 1992, et al.). In this study, we provide a brief overview and a checklist of Eucosmini, with illustrations of adults and genitalia for examined species.

• Seokhoon Choi(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University) Corresponding author
• Jeong-Nam Kim(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University)
• Hanul Kim(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University)
• Ulziijargal Bayarsaikhan(Bio-Resource and Environmental Center, Incheon National University)
• Yang-Seop Bae(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Bio-Resource and Environmental Center, Incheon National University)