In the present study, a species of the subfamily Ypsolophinae, Ypsolopha leuconotella (Snellen, 1884), is reported for the first time from Korea. The diagnosis, description, distribution, adult and genitalia photographs are provided. Species checklist of Korea Ypsolopha are provided.

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.

The genus Ypsolopha Latreille, 1796, belongs to the family Ypsolophidae, with about 160 described species worldwide. Among them, over 70 species are distributed in East Asia. In Korea, a taxonomic study of this genus have been carried out by several reseachers: Park (1983), Jeong et al (1995), Byun & Park (2001), Byun & Bae (2001), Sohn et al. (2010), Park et al. (2015), and Na et al. (2016). Up to now, 18 species have been recorded from Korea. In the present study, we provided a checklist of the genus Ypsolopha, including adult photographs.

Ypsolopha속 (나비목:Ypsolophidae)의 2종, Ypsolopha vittella (Linnaeus, 1758)와 Ypsolopha nigrofasciata (Yang, 1977)를 우리나라에서 는 처음으로 보고한다. 이 두 종의 진단형질, 기재, 분포, 기주식물, 성충사진 및 암컷 생식기 사진을 제시하였다.

The genus Ypsolopha Latreille has been recorded total 22 species from Japan. Of them, Ypsolopha distinctata Moriuti had discovered in 1977, as endemic species until now. This species show a number of variation in color and markings. Also, it treated as Ypsolopha parenthesella (Linnaes) in 1964, even both species have genital similarity. Since first recording of this species, it has not any report in detail. From 2012 to 2015, we had carried project, ‘Securing of micro-moth specimen nearby Korean Peninsula’ supporting by Korea National Arboretum. All examined specimens collected from Tsushima Island, Japan. In the present study, we reviewed Ypsolopha distinctata Moriuti, and provide adult and both gender of genitalia pictures.

The genus Ypsolopha Latreille 1796, belongs to the family Ypsolophidae, small to medium sized micro-moth, with more than 140 described species around the world. More than 70% of the species are described from the Palearctic and Oriental Regions (Jin et al., 2013). Major taxonomic study of Ypsolopha carried out by following scholars. In the end of 18th to early of 20th century, Fabricius (1798), Hübner (1826), Agassiz (1846), Walshingham (1881, 1889), Busck(1903, 1906) and Meyrick (1914-1937). Furthermore, Moriuti (1964, 1977) studied total 17 Japanese Ypsolopha species and he divided 3 groups which based on fore- and hind- wing venations and shape of labial palpus. The first systematic study of the genus Ypsolopha carried out by K. T. Park (1983), discovered with four species, Ypsolopha blandella (Christoph), Y. yasudai Moriuti, Y. strigosa (Butler), Y. acuminata (Butler) in ‘Illustrated Flora & Fauna of Korea vol. 27 Insecta (Ⅸ)’ and ‘Check List of Insects from Korea’. After than, Ypsolopha longa Moriuti was discovered by Jeong et al.(1995). In 2001, Byun and Park, they described new species, Ypsolopha nigrimaculata Byun and Park. At the same time, Byun and Bae reported 3 newly recorded species; Y. cristata Moriuti, Y. japonica Moriuti, Y. parenthesella (Linnaeus). Up to date, 14 species have been recorded from Korea by Sohn (2010, 2011) with Y. amoenella (Christoph), Y. asperella (Linnaeus), Y. contractella (Caradja) and Y. acerella (Ponomarenko and Sohn). In the present study, we identified 14 species belonging to the genus, with some unidentified species. The materials examined come from the collection of Incheon National University.

The genus Ypsolopha is the most largest group belonging to Ypsolophidae which consist of over 140 described species worldwide. About 110 species are distributed in the Palearctic and Oriental Regions, 30 species in the Nearctic Region, the rest are scattred in other regions. This genus can be distinguished easily by apparent characters. Ypsolopha species has difference of morphological characters: wing venation, labial palpi and genitalia. However, because of their genital similarity between each species, this genus is monophyletic taxon(Moriuti, 1964). In 1964, S. Moriuti suggested that 4 groups of Japanese Ypsolopha can be subdivided into 4 groups: vittellus-, paranthesellus-, strigosus- and acuminatus-group. But he reorganized Ypsolopha in the Fauna Japonica, Yponomeutidae S. LAT (1977) and intergrate paranthesellus- group into vittellus-group. In the present study, we overviewed some morphological characteristics of Ypsolopha.

Yponomeutoidea are one of the largest superfamily of microlepidoptera, comprising over 1,800 species worldwide. The composition of the superfamily was clarified by Kyrki (1984), who suggested that the monophyly of the group (based on Yponomeuta) was supported by presence of pleural robes on abdominal segment of A8 of the male. First record of Yponomeutoidea from Korea has performed by K.T. Park in 1983, and then more than 50 species have been recorded up to date. In the present study, we reviewed of the species of Yponomeutoidea from Korea, with Ypsolopha sp.

The Korean species of the genus Ypsolopha Latreille are reviewed. A total of 10 species is recognzed. mong them, three species, Y. cristatus Moriuti, Y. japonicus Moriuti, and Y. parenthesellus(Linnaeus) are recorded for the first time from Korea. Collecting data and biological informations for the species are given, and external characteristics and genital structures for he newly known species are redescribed and illustrated.