Nomada opaca, Taxa Only, Exact Match: 2 Treatments

Nomada opaca			E, Russia., 2017, The genus Nomada (Hymenoptera: Apidae) in Siberia, Linzer biologische Beiträge 49 (1), pp. 985-1006 : 996	996
Nomada opaca			Lim, Kayun & Lee, Seunghwan, 2023, A key to species of Nomada ruficornis species-group (Hymenoptera: Apidae) of South Korea, with descriptions of three new species, Zootaxa 5228 (1), pp. 44-60 : 55	55