The Eurytoma appendigaster species-group is a second large group within the genus Eurytoma Illiger found in the Palearctic region. This group comprises 44 species by Zerova, but in Korea, only one species, E. appendigaster (Swederus), has been previously reported. They are well-known for their predation on phytophagous insects, mainly the genus Tetramesa which is belonged to the family Eurytomidae and associated with grasses (Poaceae). In this study, we report seven species of the appendigaster species-group from Korea for the first time. Also, key to Korean species of appendigaster species-group and photos of diagnostic characteristics are provided.

• Duk-Young Park(Laboratory of Insect Biosystematics, Department of Agricultural Biotechnology, Seoul National University) Corresponding author
• Seunghwan Lee(Laboratory of Insect Biosystematics, Department of Agricultural Biotechnology, Seoul National University, Research Institute of Agriculture and Life Sciences, Seoul National University)