BioStor
 | V.—Contributions from the New Mexico Biological Station. —XIII. On the bees of the family Nomadidæ of Ashmead T D A Cockerell and Emerson Atkins (1902) Annals And Magazine of Natural History 10: 40-46 |
 | Bees in the collection of the U. S. National Museum. 1 T D A Cockerell (1911) Proceedings of The United States National Museum 39: 635-658 |
 | Names applied to bees of the genus Nomada, found in North America T D A Cockerell (1911) Proceedings of The United States National Museum 41: 225-243 |
 | Descriptions and records of bees. XLVII T D.a. Cockerell (1912) Annals and Magazine of Natural History 10: 484-494 |
 | The type species of the genera and subgenera of bees Grace A Sandhouse (1943) Proceedings of the United States National Museum 92(3156): 519-619 |
 | Bees from Central America, Principally Honduras T D A Cockerell (1949) Proceedings of The United States National Museum 98: 429-490 |
 | Host relationships, ethology and systematics of pseudomethoca ashmead (Hymenoptera : Mutillidae, Andrenidae, Halictidae and Anthophoridae) K V Krombein (1992) Proceedings of the Entomological Society of Washington 94: 91-106 |
 | Species-groups and cladistic analysis of the cleptoparastic [sic] bee genus Nomada (Hymenoptera: Apoidea) (1994) University of Kansas Science Bulletin 55: 175-236 |
 | Genus-group names of bees and supplemental family-group names Charles D Michener (1997) Scientific Papers Natural History Museum University of Kansas 1: 1-81 |