The genus Nipponopsyche Yazaki is reported from Korea with an unrecorded species, N. fuscescens Yazaki for the first time. Adult, larva, pupa and genitalia of the species are redescribed with SEM illustrations, and DNA barcode for precise identification of the species is also provided.

• Seung Jin Roh(Division of Forest Biodiversity, Korea National Arboretum)
• Bong-Kyu Byun(Department of Biological Science and Biotechnology, Hannam University)
• Da-Som Kim(Department of Biological Science and Biotechnology, Hannam University, Research and Promotion Division, National Science Museum)
• Bo-Sun Park(Organic Agriculture Division, National Institute of Agricultural Sciences)
• Subin Choi(Division of Forest Biodiversity, Korea National Arboretum)
• Il-Kwon Kim(Division of Forest Biodiversity, Korea National Arboretum)