The Chrysomelid species of the genus Xanthogaleruca, X. aenescens Fairmaire, 1878 is reportd for the first time from South Korea. The genus Xanthogaleruca Laboissiére, 1934, within subfamily Galerucinae, contains only nine species, and is distributed Palearctic region (Beenen, 2010), but one adventive species, X. luteola (Müller, 1766), is widespread throughout much of Canada, North Africa and the United States. Also known as the elm leaf beetle, it feed on Ulmus (Ulmaceae).
In the present study we report on the genus Xanthogaleruca Laboissiére, 1934 from Korea for the first time, based on X. aenescens Fairmaire, 1878. We provide the habitus photographs, illustrations of diagnostic features and a key to the genus in S. Korea.

• Jinyoung Park(Division of Ecological Assessment, National Institute of Ecology)
• Jin Yeol Cha(Division of Ecological Assessment, National Institute of Ecology)
• Ik Je Choi(Division of Forest Biodiversity, Korea National Arboretum)
• Jong Eun Lee(Department of Biological Science, Andong National University)
• Jong Kyun PARK(Department of Applied Biology, Kyungpook National University)