We are indebted to the following:

• Abadingo, M., J. M. Calleja, M. R. Lumang, M. Mina, and K. Nono. (2002). Vegetation survey and road map update of the UP Arboretum. Ekolohiya. URL (19 Dec. 2002).
• Baltazar, C. R. 1990. An inventory of Philippine insects. Los Baños: University of the Philippines.
• CESA (Centre for Entomological Studies Ankara). (18 Dec. 1998). Unit II: Classification. Lepidoptera (butterflies, skippers, moths). URL (19 Dec. 2002).
• Ehrlich, P.R., and A. H. Ehrlich.1961. How to know the butterflies. WM. C. Brown Company Publishers. Dubuque, Iowa.
• Harding, P.T., Asher J., and T.J. Yates. 1995. Butterfly monitoring 1: recording the changes. In Ecology and Conservation of Butterflies by A.S. Pullin (ed.), Chapman and Hall, London.
• Igarashi, S. and H. Fukuda. 1997. The Life Histories of Asian Butterflies Vol. 1. Tokai University Press, Tokyo, Japan.
• Klots, A.B. 1951. A field guide to the butterflies. The Riverside Press, Massachusetts.
• Klots, A. B. 1991. Butterflies and Moths (found in the Lexicon Universal Encyclopedia). Lexicon Publications Inc. New York.
• Lamas, C. (30 Jan. 2000). Butterfly Haven Emerges from its Cocoon. Philippine Daily Inquirer.
• Lastufka, M. (2001). Make butterfly frames. URL (08 Jan. 2003).
• Mendoza, J. C. E. 2001. Biology 116.1 Invertebrate Zoology Laboratory Manual. Institute of Biology, University of the Philippines, Diliman. Unpublished.
• Meyer, J. R. (13 June 2001). Lepidoptera. URL (19 Dec. 2002).
• Mwadime, R.N. 1996. Changes in Environmental Conditions: Their Potential as Indicators for Monitoring Household Food Security. URL (31 Jan. 2003).
• Parmesan, C. 1996. Ecological Indicators of Climate Change, U.S. Global Change Research Program. 2nd Monday Seminar Series, Washington DC. URL (31 Jan. 2003).
• Pollard, E. and T.J. Yates. 1993. Monitoring Butterflies for Ecology and Conservation. Chapman and Hall, London.
• Sotalbo, E. D. 2001. Trees, palms, and bamboos of the University of the Philippines Diliman. Quezon City: University of the Philippines Press.
• Sundholm, A. (15 May 1998). Records of Lepidoptera and Coleoptera from the Tanay Area, Rizal Province, Luzon Island, the Philippines, 1989 – 1996. URL (19 Dec. 2002).
• The Institute for the Conservation of World Biodiversity. (N.d). URL (03 Jan. 2003).
• University of the Philippines – Diliman. (N. d.). Honor and excellence: UP Diliman through the years. URL (19 Dec. 2002).
• History. (N. d.). URL (31 Jan.2003)
• Zoom Butterflies. (N. d.). URL (31 Jan.2003)
• Moths of North Dakota. (N. d.). URL (20 Mar. 2003)

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