Benson, W. W., Brown, J., K. S., Gilbert, L. E. 1976. Coevolution of plants and herbivores: Passion flower butterflies. Evolution 29:659-680

Edgar, J. A., Culvenor, C. C. J., Pliske, T. E. 1974. Co-evolution of Danaid butterflies with their host plants. Nature (London) 250:646-648

Ehrlich, P. R., Raven, P. H. 1965. Butterflies and plants: A study in coevolution. Evolution 18:586-608

Futuyma, D. J. 1983. Evolutionary interactions among herbivorous insects and plants. In Coevolution, Eds. D. J. Futuyma and M. Slatkin, 207-231. Sunderland, MA: Sinauer Associates.

Gould, F. 1988. Genetics of pairwise and multispecies plant-herbivore coevolution. In Chemical mediation of coevolution , ed. K. C. Spencer. pp. 13-55. New York: Academic Press, Inc., Harcourt Brace Jovanovich, Publishers [Keywords: behavior, physiology, chemical defense, plant-animal interactions]

Rathke, B. J., Poole, R. W. 1975. Coevolutionary race continues: butterfly larval adaptations to plant trichomes. Science (Washington) 187:175-176

Spencer, K. C., ed. 1988. Chemical mediation of coevolution San Diego: Academic Press. 609 pp.