BioStor
 | XLIV.—List of Coleoptera collected in Vancouver's Island by Henry and Joseph Matthews, with descriptions of some new species J L Leconte (1869) Annals And Magazine of Natural History 4: 369-385 |
 | A catalogue of the Coleoptera of Colorado H Wickham (1902) Bulletin from the Laboratories of Natural History of the State University of Iowa 5: 217-310 |
 | List of Coleoptera collected in New Mexico by the entomological expeditions of the University of Kansas Snow Francis Huntington (1906) Transactions of the Kansas Academy of Science, Topeka 20: 165-189 |