BioStor
 | Ein neueres Werk über afrikanische Bienen kritisch besprochen Embrik Strand (1912) Archiv für Naturgeschichte 78: 126-144 |
 | XXV. On South African bees, chiefly collected in Natal T D A Cockerell (1920) Annals of the Durban Museum 2: 286-318 |
 | 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 |
 | The classification of halictine bees: tribes and Old World nonparasitic genera with strong venation Charles D Michener (1978) University of Kansas Science Bulletin 51(16): 501-538 |
 | 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 |
 | Pollination of Petaloid Geophytes by Monkey Beetles (Scarabaeidae: Rutelinae: Hopliini) in Southern Africa Peter Goldblatt, Peter Bernhardt and John C Manning (1998) Annals of the Missouri Botanical Garden 85: 215-230 |
 | Pollination of Moraea Species (Iridaceae) with a Staminal Column Peter Goldblatt and Peter Bernhardt (1999) Annals of the Missouri Botanical Garden 86: 47-56 |