BioStor
 | Synonymical notes on North-American Coleoptera J Leconte (1870) The Annals and Magazine of Natural History, London 6: 394-404 |
 | List of Coleoptera collected in Colorado in june, july and august, 1876 by the Kansas University scientific expedition Snow Francis Huntington (1877) Transactions of the Kansas Academy of Science, Topeka 5: 15-20 |
 | The entomology of the Mid-Alpine zone of Custer County Colorado Cockerell T.d.a. (1893) Transactions of the American Entomological Society 20: 305-370 |
 | The Coleoptera of New Mexico H C Fall and T D A Cockerell (1907) Transactions of The American Entomological Society 33: 145-272 |