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.

• Sol-Moon Na(Yeongnam Regional Office, Animal and Plant Quarantine Agency, Busan, 48943, Republic of Korea)
• Gyu-Won Kang(Yeongnam Regional Office, Animal and Plant Quarantine Agency, Busan, 48943, Republic of Korea)
• Kang-Moon Na(Yeongnam Regional Office, Animal and Plant Quarantine Agency, Busan, 48943, Republic of Korea)
• Young-Mi Park(Jungbu Regional Office, Animal and Plant Quarantine Agency, Incheon, 22133, Republic of Korea)
• Young-Min Shin(Jungbu Regional Office, Animal and Plant Quarantine Agency, Incheon, 22133, Republic of Korea)
• Jaekwang Jwa(Jeju Regional Office, Animal and Plant Quarantine Agency, Jeju, 63219, Republic of Korea)
• Minyoung Kim(Incheon International Airport Regional Office, Animal and Plant Quarantine Agency, Incheon, 22382, Republic of Korea)
• Min Jee Kim(Honam Regional Office, Animal and Plant Quarantine Agency, Gunsan, 54096, Republic of Korea)