The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

• "Butterflies and the Plants that Attract Them" (On-line). Accessed April 17, 2000 at http://www.zilker-garden.org/abf/abfplnt.html.
• Douglas, M. 1986. The Lives of Butterflies. Ann Arbor: The University of Michigan Press.
• Ehrlich, P., A. Ehrlich. 1961. How to Know the Butterflies. Dubuque, Iowa: Wm. C. Brown Company Publishers.
• Holland, W. 1907. The Butterfly Book. New York: Doubleday, Page, & Company.
• Majka, C. "Monarchs, Viceroys, and Queens: Who's the real pretender to the throne?" (On-line). Accessed April 17, 2000 at http://www.chebucto.ns.ca/Environment/NHR/monarch.html.
• New, T. 1991. Butterfly Conservation. South Melbourne, Australia: Oxford University Press.
• Parenti, U. 1977. The World of Butterlies & Moths: Their Life-cycle, Habits, and Ecology. New York: G.P. Putnam's Sons.
• Pelham, Jonathan P. 2008. A catalogue of the butterflies of the United States and Canada with a complete bibliography of the descriptive and systematic literature. Journal of Research on the Lepidoptera, vol. 40. xiv + 658
• Pyle, R. 1999. Chasing Monarchs: Migrating with the Butterflies of Passage. New York, New York: Houghton Mifflin Company.
• Struttmann, J. "Butterflies of North America: Butterflies of Texas: Queen (Danaus gilippus)" (On-line). Accessed April 17, 2000 at http://www.npwrc.usgs.gov/resource/distr/lepid/bflyusa/tx/91.htm.