1. D. L. Hancock, "Smithersia." 2, "Classification of the Papilionidae (Lepidoptera): a phylogenetic approach." 1 (1983)
2. G. S. Robinson, P. R. Ackery, I. J. Kitching, et al. "HOSTS - A Database of the World's Lepidopteran Hostplants." (2010)
3. A. M. Shapiro and T. D. Manolis "Field Guide to Butterflies of the San Francisco Bay and Sacramento Valley Regions." 345 (2007)
4. H. S. Caterino and F. A. H. Sperling "Molecular Phylogenetics and Evolution." 11, "Papilio phylogeny based on mitochondrial cyctochrome oxidase I and II gene." 122 (1998)
5. J. A. Comstock, "Butterflies of California." 334 (1927)