BioStor
 | 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 |
 | Zur Bienenfauna von Abessinien (1916) Deutsche Entomologische Zeitschrift 1915: 265-298 |
 | Notes sur quelques Apides de Congo belge Embrik Strand (1921) Revue zoologique africaine 8: 87-106 |
 | 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 |
 | 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 |