BioStor
 | Synopsis of the Silphidae of the United States, with reference to the genera of other countries (1880) Transactions of The American Entomological Society 8: 219-321 |
 | Papers from the Harriman Alaska Expedition XVIII. Entomological Results (12): Coleoptera. Coleoptera of the Expedition Schwarz Eugene Amandus (1900) Proceedings of the Washington Academy of Sciences 2: 523-537 |
 | 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 prothorax of Coleoptera: (except bostrichiformia - cucujiformia) T F Hlavac (1975) Bulletin of The Museum of Comparative Zoology 147: 137-183 |
 | Fossil Carrion Beetles Of Pleistocene California Usa Asphalt Deposits With A Synopsis Of Holocene California Silphidae Insecta Coleoptera Silphidae S E Miller and S B Peck (1979) Transactions of The San Diego Society of Natural History 19: 85-106 |