A key to species of Nomada ruficornis species-group (Hymenoptera: Apidae) of South Korea, with descriptions of three new species Author Lim, Kayun Utah State University, Department of Biology, 5305 Old Main Hill, Logan, UT 84322 - 5305, USA. & Insect Biosystematics Laboratory, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151 - 921, Republic of Korea. Author Lee, Seunghwan Insect Biosystematics Laboratory, Research Institute for Agriculture and Life Sciences, Seoul National University, Seoul 151 - 921, Republic of Korea. & Department of Agricultural Biotechnology, Seoul National University, Seoul 151 - 921, Republic of Korea. text Zootaxa 2023 2023-01-11 5228 1 44 60 journal article 224104 10.11646/zootaxa.5228.1.2 e38cfea8-7b9a-47d5-ad4c-9e6fc5fc8d4e 1175-5326 7523971 794F4EC7-DE46-42B5-9C7E-0F164FB51C98 Nomada leucophthalma ( Kirby, 1802 ) Apis leucophthalma Kirby, 1802: 197 . Holotype ♁. TD: BNHM. TL: UK . Nomada leucophthalma : Alexander & Schwarz, 1994: 249 ; Mitai & Tadauchi, 2007: 109–111 ; Won & Kim, 2013: 39–40 . Nomada kuro Tsuneki, 1986: 52 ; Alexander & Schwarz, 1994: 249 . Nomada muinensis Tsuneki, 1986: 53–54 ; Alexander & Schwarz, 1994: 250 .