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 adustaspinae Lim & Lee , sp. n. Figures 1−3 , 10 . Diagnosis. Recognized by HTS; dark brown, five to six in number, irregularly distributed, unequal length and wide in female; light brown, four to five in number, thin and intermixed with white hair in male. Male terminalia as in Fig. 3A–F ; basoventral lobe present.