Nomada carolinae Cockerell, 1903:602, ♀.North Carolina (Acad. Nat. Sci. Phila.); Muma, 1952Muma, M.H. 1952. Insect types in the collections of the University of Nebraska State Museum. Bulletin of the University of Nebraska State Museum 3 (8):1-35.:20, Allotype ♂ (University of Nebraska State Museum). Synonymized with Nomada ovata (Robertson, 1903) by Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:351. - Cockerell, 1911Cockerell, T.D.A. 1911. Bees in the collection of the U. S. National Museum. 1. Proceedings of the United States National Museum 39:635-658. (distribution); Cockerell, 1912Cockerell, T.D.A. 1912. Names applied to bees of the genus Nomada, found in North America. Proceedings of the United States National Museum 41:225-243. (distribution); Swenk, 1912Swenk, M.H. 1912. Studies of North American bees. I. Family Nomadidae. University Studies of the University of Nebraska 12 (1):1-113. (distribution); Cockerell, 1921Cockerell, T.D.A. 1921. Western bees obtained by the American Museum expeditions. American Museum Novitates 24:1-15. (distribution); Alexander & Schwarz, 1994Alexander, B.A. & M. Schwarz 1994. A Catalog of the Species of Nomada (Hymenoptera: Apoidea) of the World. The University of Kansas Science Bulletin 55 (7):239-270.:250 ( listed as synonym of Nomada ovata (Robertson, 1903)).
Gnathias ovatus Robertson, 1903:175 - As Nomada ovata: - Cockerell, 1912Cockerell, T.D.A. 1912. Names applied to bees of the genus Nomada, found in North America. Proceedings of the United States National Museum 41:225-243. (distribution); Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557. (distribution); Pascarella, 2006Pascarella, J.B. 2006. The bees of Florida. . (distribution).
Gnathias ovatus plenus Robertson, 1903:175 - Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:351 ( listed as synonym of Nomada ovata (Robertson, 1903)); Alexander & Schwarz, 1994Alexander, B.A. & M. Schwarz 1994. A Catalog of the Species of Nomada (Hymenoptera: Apoidea) of the World. The University of Kansas Science Bulletin 55 (7):239-270.:250 ( listed as synonym of Nomada ovata (Robertson, 1903)).
Gnathias ovatus octomaculatus Robertson, 1903:175 - Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:351 ( listed as synonym of Nomada ovata (Robertson, 1903)); Alexander & Schwarz, 1994Alexander, B.A. & M. Schwarz 1994. A Catalog of the Species of Nomada (Hymenoptera: Apoidea) of the World. The University of Kansas Science Bulletin 55 (7):239-270.:250 ( listed as synonym of Nomada ovata (Robertson, 1903)).
Gnathias ovatus sexmaculatus Robertson, 1903:175 - Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:351 ( listed as synonym of Nomada ovata (Robertson, 1903)); Alexander & Schwarz, 1994Alexander, B.A. & M. Schwarz 1994. A Catalog of the Species of Nomada (Hymenoptera: Apoidea) of the World. The University of Kansas Science Bulletin 55 (7):239-270.:250 ( listed as synonym of Nomada ovata (Robertson, 1903)).
Gnathias ovatus quadrimaculatus Robertson, 1903:175 - Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:351 ( listed as synonym of Nomada ovata (Robertson, 1903)); Alexander & Schwarz, 1994Alexander, B.A. & M. Schwarz 1994. A Catalog of the Species of Nomada (Hymenoptera: Apoidea) of the World. The University of Kansas Science Bulletin 55 (7):239-270.:250 ( listed as synonym of Nomada ovata (Robertson, 1903)).
Gnathias ovatus binotatus Robertson, 1903:175 - Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:351 ( listed as synonym of Nomada ovata (Robertson, 1903)); Alexander & Schwarz, 1994Alexander, B.A. & M. Schwarz 1994. A Catalog of the Species of Nomada (Hymenoptera: Apoidea) of the World. The University of Kansas Science Bulletin 55 (7):239-270.:250 ( listed as synonym of Nomada ovata (Robertson, 1903)).
Gnathias ovatus unicolor Robertson, 1903:175 - Mitchell, 1962Mitchell, T.B. 1962. Bees of the Eastern United States. Volume II. Technical bulletin (North Carolina Agricultural Experiment Station) 152:1-557.:351 ( listed as synonym of Nomada ovata (Robertson, 1903)); Alexander & Schwarz, 1994Alexander, B.A. & M. Schwarz 1994. A Catalog of the Species of Nomada (Hymenoptera: Apoidea) of the World. The University of Kansas Science Bulletin 55 (7):239-270.:250 ( listed as synonym of Nomada ovata (Robertson, 1903)).