BioStor
 | Names applied to the eucerine bees of North America T D A Cockerell (1912) Proceedings of The United States National Museum 43: 261-273 |
 | Descriptions and records of bees, lxxxi (1918) Annals of Natural History London 2: 418-425 |
 | 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 |
 | Light Trap Screening For Collecting Small Soft Bodied Insects J W Stewart and T L Payne (1971) Entomological News 82: 309-312 |
 | The Squash And Gourd Bees, Peponapis Azteca Hurd And Linsley And Xenoglossa Gabbii Crawfordi Cockerell In Chihuahua, Mexico J K Bouseman (1977) Proceedings of The Entomological Society of Washington 79: 488-489 |
 | Morning Glory Bees And Ipomoea pandurata Complex D F Austin (1978) Proceedings of The Entomological Society of Washington 80: 397-402 |
 | The proboscis of the long-tongued bees: a comparative study M L Winston (1979) University of Kansas Science Bulletin 51: 631-667 |
 | Clave para los géneros de abejas de Chile (Hymenoptera: Apoidea) E Chiappa, M Rojas G-L and H Toro G (1990) Rev. Chilena Ent. 18: 67-81 |
 | Studies of the phylogeny and classification of long-tongued bees (Hymenoptera: Apoidea) (1993) University of Kansas Science Bulletin 55: 123-162 |
 | 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 |