BioStor
 | Insect types and cotypes. A preliminary list of those in the Francis Huntington Snow Entomological Collections C H Withington (1909) Transactions of the Kansas Academy of Science 22: 327-335 |
 | Catalogue of the types in the Snow Entomological Museum. Part I (Hymenoptera) (1956) Kansas University Science Bulletin 38: 501-531 |