BioStor
 | Bees in the collection of the United States National Museum T D.a. Cockerell (1919) Proceedings of the United States National Museum 55: 167-221 |
 | 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 |
 | Die von Spix und Martius 1817-1820 in Brasilien gesammelten und von J. A. M. Perty 1833 bearbeiteten Hymenoptera in der Zoologischen Staatssammlung München (Insecta, Hymenoptera) E Diller (1990) Spixiana 13: 61-81 |
 | 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 |
 | The Cleptoparasitic Bee Tribe Rhathymini (Hymenoptera: Apidae): Description of a New Genus and a Tribal Review Michael S Engel, Charles D Michener and Molly G Rightmyer (2004) Journal of Hymenoptera Research 13: 1-12 |