Until now, in case of Palaearctic region, only one species, Nesendaeus monochrous in this genus was recorded from China. but the biology and life cycle are not clearly known, yet. This species collected from the bud of Glochidion chodoense in Korea for the first time and closely related to Heterochyromera imerodeus Kojima & Morimoto which was recorded only in Japan,. But Nesendaeus monochrous is easily distinguishable from H. imerodeus by the relatively longer elytra with bisinuately round apices. Heterochyromera imerodeus Kojima & Morimoto can be found from Eurya emarginata and Glochidion obovatum in Japan. So, this two species are closely related each other and need more taxonomic study about the generic synonymy or changing the generic position.

• Sangwook Park(Research Institute of Forest Insect Diversity, South Korea) Corresponding author
• Gyu Young Han(Korea National Arboretum, South Korea)
• Jun Min Seo(Korea National Arboretum, South Korea)
• Il-Kwon Kim(Korea National Arboretum, South Korea)
• Ja-Jeong Ku(National Institute of Forest Science, South Korea)
• A Yong Kim(Korea National Arboretum, South Korea)