1. Brower, L. P, Brower, V. Z., and Cranston, F. P. (1965). Courtship behavior of the queen butterfly, Danaus gilippus berenice (Cramer). Zoologica 50: 1–39.
2. Crane, J. (1955). Imaginal behavior of a Trinidad butterfly, Heliconius erato hydara Hewitson, with special reference to the social use of color. Zoologica 40: 167–196.
3. Hiroki, M., and Kato, Y. (1996). Age-related sexual receptivity change in virgin females of a butterfly, Eurema hecabe. Appl. Entomol. Zool. 31: 455–458.
4. Hiroki, M., Obara, Y., and Kato, Y. (1998). Changes in age-related reproductive tactics in the female of the butterfly, Eurema hecabe. Naturwissenschaften 85: 551–552.
5. Krebs, R. A. (1988). The mating behavior of Papilio glaucus (Papilionidae). J. Res. Lepid. 26 (1–4): 27–31.