The family Gracillariidae belonging to Gracillarioidea comprises more than 2,000 described species of 75 genera in the world (Davis & Robinson, 1999). The members of the family are mostly small-sized moths, which can be distinguished by a short (2-10mm in length) and lanceolated narrow wing with prominent cilia. The larvae of the family have been known as leaf-miner and hypermetamorphic development in larval stages. In Korea, it has been recorded 39 species of 11 genera by several researchers (Nakayama & Okamoto, 1940; Ko, 1969; Park, 1975; Park et al. 1977; Kumata & Park, 1978; Park, 1983; Kumata et al., 1983; Park & Han, 1986). Recently, Sohn (2007) reported 6 species without descriptions and detail information for the species. However, it is necessary to investigate and review the Korean Gracillarid moths, due to their lack knowledge from Korea to date, comparing with Japanese fauna, which contains 225 known species from Japan (http://www. jpmoth.org/). In this study, three species, Cloptilia heringi Kuroko, Phyllonryeter cavella (Zeller), and P. tritorrhecta (Meyrick), of the family Gracillariidae aree reported for the first time from Korea.

The family Heliozelidae belonging to Incurvarioidea, which is relatively primitive group, includes very small-sized moths with forewing length of 3-9mm, comprising 12 genera and about 106 species in the world (Heppner, 1991). It has a worldwide distribution mainly in the Nearctic and Australian regions. In Asia, thirteen species belonging to three genera of the family were reported from Japan, but almost it has not been known from Korea. Just one species, Antispila purpulella Kuroko, was recorded by Lee & Byun (2007). The family are leaf-miners through the larval stage and include several pests of fruit trees, such as grapes and apple. Larvae of Coptodisca splendoriferella (Clemens, 1859) mine into twigs of apple trees in America (Needham et al., 1928). In Japan, Antispila uenoi Kuroko, 1987 is known as a pest of grapes (Ueno, 1987). At least 13 plant families including Vitaceae, Cornaceae and Fagaceae have been reported as host plants of Heliozelidae (Davis, 1999). In this study, two unknown species, Heliozela castanella Kuroko, and H. limbata Lee et al., of the family Heliozelidae was reported based on the material collected from Prov. Gyeongnam and Gyeonggi.