The genus Coptotriche belongs to leafmining family Tischeriidae, comprising about 60 species in the world. They live in inside leaves during immature stage; larvae feed on tissue of the leaf, producing mining trace. The pupa also spend in the mine, and emerge to become a adult from the mine.
In Korea, two species, C. angusticollella and C. heinemanni, are reported and are known as pest about Rosa multiflora and Rubus crataegifolius respectively.
In the present study, we review three species of genus Coptotriche in Korea with a new species. Brief descriptions and illustrations of the adults, male and female genitalia, larvae, pupae, and host plants are provided.

• Hyeong-Kyu Kim(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, Korea)
• Ulziijargal Bayarsaikhan(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, Korea)
• Sol-Moon Na(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, Korea)
• Dong-June Lee(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, Korea)
• Jae-Ho Ko(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, Korea)
• Tak-Gi Lee(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, Korea)
• Yeong-Bin Cha(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, Korea)
• Chang-Moon Jang(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, Korea)
• Yang-Seop Bae(Division of Life Sciences, College of Life Sciences and Bioengineering, Incheon National University, Incheon, Korea, Bio-Resource and Environmental Center, Incheon National University)