BioStor
 | Classification of American Colletinae (Hymenoptera, Apoidea) Charles D Michener (1989) University of Kansas Science Bulletin 53(11): 623-703 |
 | Bees of Rio Grande do Sul, Southern Brazil (Insecta, Hymenoptera, Apoidea) Dieter Wittmann and Magali Hoffman (1990) Iheringia, Sér.Zool. 70: 14-43 |
 | 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 |