Jeju Island has been facing to threat of high-risk invasive pests from tropical areas. To protect domestic agriculture from those invasive pests, APQA has conducted a regular monitoring program on Jeju Island. We collected especially phototactic heteroceran pests by light bucket trap and identified them using their superficial appearances, and also mitochondria COI gene. As a result, a total of 24 families, 136 genera, 193 species, and 819 individuals were collected from around Jeju Island in 2023. Among them, two unidentified epidopteran pests, Palpita sp. (Crambidae) and Xyrosaris sp. (Yponomeutidae) were collected. In the present study, we report two unidentified micro-lepidopteran pests using superficial characteristics and mitochondria COI gene.

Xyrosaris Meyrick, 1907 is a small genus of the family Yponomeutidae, established by Meyrick (1907) for its type species Xyrosaris dyropa Meyrick, 1907. A total of nine species were recognized in the world. Most of species of the genus have been described by Meyrick at the early 20th century. Up to date, X. lichneuta Meyrick, 1918 has been reported from Korea. In the present study, we review the genus Xyrosaris from Korea, with two new species: X. sp.1 and X. sp.2. Key to species, illustrations of adult, male and female genitalia, diagnosis and short description are provided.

The genus Yponomeuta Latreille belongs to the family Yponomeutidae, with over 75 described species worldwide. This genus is distributed mainly in the Palaearctic Region, comprising 42 species. In Korea, a total of 16 species have been reported from Korea. This genus is reported by Park (1983), with seven species in Illustrated Flora & Fauna of Korea Vol. 27. Bae & Byun (2003) reported four newly recorded species of this genus: Yponomeuta kanaiella, Y. montanatus, Y. sociatus, and Y. yanagawanus. Byun (2009) listed a Korean Micro-Lepidoptera, recording 12 Yponomeuta species, with a newly recorded species Y. solitariellus. Sohn et al. (2010) and Lee & Park (2016) added two species: Y. anatolicus and Y. cinefacta. In the present study, we reported three newly recorded species of Yponomeuta, including adults and genital photographs, host plants, distribution and short descriptions.

Two species of the genus Argyresthia Hübner are reported for the first time from Korea: A. albicomella Moriuti, A. alpha Friese & Moriuti. Up to now, unknown information of male genitalia of A. albicomella is firstly described herein. Illustration of adults and genitalia are provided.

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 subfamily Yponomeutinae Stephens belongs to the family Yponomeutidae, with over 270 described species in theworld. Among them, about 120 species are distributed in Palearctic Region. In Korea, a total of twenty five species havebeen reported from Korea. First recording of this subfamily species is reported Park (1983), with 6 genera 11 speciesin Illustrated Flora & Fauna of Korea, Vol, 27. Bae & Byun (2003) reported four known species of this group: Yponomeutakanaiella, Y. montanatus, Y. sociatus, and Y. yanagawanus.In the present study, we provided a checklist of the subfamily Yponomeutinae with a newly recorded genus, includingadult and genital photographs in each genus.

The genus Argyresthia Hübner, 1826, belongs to the family Argyresthiidae, with over 150 described species worldwide. Among them, over 70 species are distributed in Palearctic Region. In Korea, a total of four species have been reported from Korea. In 1968, the apple fruit moth, Argyresthia conjugella Zeller is reported by The Zoological Society of Korea. Sohn (2007) reported three known species of this genus: Argyresthia ivella Haworth, A. laevigatella, Herrich-Schäffer and A. magna Moriuti. In the present study, five species of the genus Argyresthia are reported from Korea for the first time, including adult, male and female genitalia photographs and short description.

The genus Micrerethista Meyrick, 1938 belong to the subfamily Harmacloninae, comprises 11 described species for the world. Adult are usually very small to medium in size (wingspan, 4-16mm). The principal apomorphy of this genus, the denticulate projection of the aedeagus, easily distinguishes it from most Harmacloninae. In this study, we dealt with the genus Micrerethista is newly recorded from Korea for the first time, with one species. Illustrations of adult and genitalia are presented.

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.

Two species of genus Monopis (M. pavlovskii, M. congestella) from detritus were found in raptorial bird cage. We used feather-traps that include detritus of raptorial bird, each two traps deployed at Mt.Gyeyang in Incheon and Mt.Cheonchuk in Uljin, respectively. Larvae of tineid feed on keratin sources in the detritus of the raptorial bird cage such as pellets, furs, and feathers. Biological information regarding M. pavlovskii and M. congestella and photographs of their immature stage are provided. It is likely that detritus of raptorial bird cage provide a suitable habitat for keratophagous tineids in nature because of a wide variety of keratin in the raptorial bird cage.

Tsushima Island (Daemado) belonging to Japan is an island located between South Korea and Japan, so this island is very important geographically. Tsushima is divided into two main islands on North (Kami Jima), South (Shimo Jima). The highest mountain of south Island is Yatateyama (649m) and Mitakeyama in north Island (487m). Almost area is mountainous and forested. We collected for three years from 2012 to 2014. First Collecting site is Miuda beach (28m. 34°40'34.39"N, 129°27'51.35"E), second is Ayumodoshi (65.7m. 34°09’ 06.70”N, 129°12’ 31.1” E), third is Mt. Eboshi (11.7m. 34°22’35.5” N, 129°18’ 33.6” E). The moths were collected by the light trap including one Mercury vapor lamp and two UV lamps with white screen. A total of 17 species, 12genera of Crambinae were identified. The materials examined are deposited in Incheon National University.