The genus Ypsolopha Latreille, 1796, belongs to the family Ypsolophidae, small to medium sized moth, with more than 160 described species around world.
Japanese species, Ypsolopha fujimotoi Moriuti, 1964 is reported from Korea for the first time. Additionally, we compare two smilar species, Ypsolopha fujimotoi and Y. longa.
In the present study, we provided two Ypsolophid species, including adult photographs, genitalia pictures and descriptions. Voucher specimens are deposited in the Animal Diversity Laboratory, College of Life Sciences, Incheon National University, Korea.

• Sol-Moon Na(Division of Life Sciences, Incheon National University)
• Bo-Sun Park(Division of Life Sciences, Incheon National University)
• Dong-June Lee(Division of Life Sciences, Incheon National University)
• Yang-Seop Bae(Division of Life Sciences, Incheon National University, Bio-Resource and Enviromental Center, College of Life Sciences and Bioengineering, Incheon National University)