BioStor
 | Descriptions of new species of Bees belonging to the genus Nomia of Latreille Frederick Smith (1875) Transactions of The Royal Entomological Society of London 23: 53-70 |
 | XI. Hymenoptera orientalia, or contributions to a knowledge of the Hymenoptera of the Oriental zoological region. Part VII Peter Cameron (1898) Memoirs and Proceedings of the Manchester Literary and Philosophical Society 42(11): 1-84 |
 | Bees in the collection of the United States National Museum. 2 T D.a. Cockerell (1911) Proceedings of the United States National Museum 40: 241-264 |
 | A revision of the bees of the subgenus Epinomia in the New World (Hymenoptera-Halictidae) (1958) University of Kansas Science Bulletin 38: 1261-1301 |
 | 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 |