The jewel beetle, Trachy dilaticeps Gebhardt, 1928 has been known to occur in Japan, China, Taiwan, and Vietnam hitherto. This species is typically distributed in Oriental region. In the case of Palaearctic region, it has only been documented in Japan (Kyushu). In this study, we report T. dilaticeps for the first time from Korea, along with its diagnostic characters. Ecological and distributional information is also provided herein.