BioStor
 | Classification of the bees, or the superfamily Apoidea (1899) Transactions of The American Entomological Society 26: 49-100 |
 | 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 |
 | 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 |