Oecophyllembiinae moths are small leaf mining gracillariid subfamily which is consisting of 34 species in 6 genera on the world, and their wing expanse about only 5-10mm. Since Kumata (1998) redefined subfamily Oecophyllembiinae, and Vari et al. (2002) treated Oecophyllembiinae as a synonym of Phyllocnistinae. Kawahara et al. (2011) analyzed, however, the grouping Oecophyllembiinae together with Phyllocnistinae is supported weakly or not at all, but a sister-group relationship could not be rejected. Also, because of their character distinctions on hind wing venation and the larval thoracic spiracles, we would like to follow Kumata (1998) distinguished Oecophyllembiinae from Phyllocnistinae. In thisstudy, Eumetriochroa hederae Kumata, 1998 feeding on Hedera rhombea SIEB. et ZUCC. (Araliaceae), is reported for the first time from Goheung, Korea. The host plant Hedera rhombea is a species of ivy which is native to coast of East Asia and some islands of East Asia include China, Taiwan, Japan and Korea. Larva makes irregular linear mine on upper side of leaf throughout its whole stage. The mature larva makes an oval pupal chamber within the end of the mine. The figures of the male and female genitalia, mine, pupae in immature stages are provided. The subfamily Oecophyllembiinae Real et Balachowsky (Lepidoptera: Gracillariidae) is newly recorded from Korea for the first time.