BioStor
 | Studies of North American weevils W D Pierce (1909) Proceedings of The United States National Museum 37: 325-364 |
 | Miscellaneous contributions to the knowledge of the weevils of the families Attelabidae and Brachyrhinidae W D Pierce (1913) Proceedings of The United States National Museum 45: 365-426 |
 | Checklist of the coleopterous insects of Mexico, Cantral America, the West Indies, and South America. Part 5. Richard E Blackwelder (1947) Bulletin of the United States National Museum 185: 765-925 |