Horseflies of the Tabanus immanis species group from Korea are revised taxonomically. A total of six species are arranged herein. Among them, T. vibex is new to science, and T. toshiokai is newly recorded. A key, annotated domestic records, and collection data are also provided.

• Suh, Sang-Jae(Department of Horticulture, Sangju Nat. University)
• Choi, Kwang-Shik(Dept. of Agricultural Biology, Kyungpook Nat. University)
• Kwon, Yong-Jung(Dept. of Agricultural Biology, Kyungpook Nat. University)