BioStor
 | List of the Coleoptera of southern California with notes on habits and descriptions of new species Fall Henry Clinton (1901) Occasional Papers of the California Academy of Sciences, San Francisco 8: 1-282 |
 | The Coleoptera of New Mexico H C Fall and T D A Cockerell (1907) Transactions of The American Entomological Society 33: 145-272 |
 | Studies of North American weevils W D Pierce (1909) Proceedings of The United States National Museum 37: 325-364 |
 | A list of the beetles of San Diego County, California M O O R E Jan (1937) Occasional Papers of the San Diego Society of Natural History 2: 1-109 |