References

Branham, M. 2005. How and why do fireflies light up? http://www.scientificaamerican.com/article.cfm?id=how-and-why-do-fireflies/>.           Accessed 4 November 2013.

Cratsley, C.K. 2004. Flash Signals, Nuptial Gifts and Female Preference in Photinus  Fireflies. Integrative & Comparative Biology 3:238-241.

Enisner, T., Goetz, M.A., Hill, D.E., Smedly, S.R., and Meinwald, Jerrold, 1997 Firefly ‘‘femmes fatales’’
 acquires defensive steroids (lucibufagins)from their firefly prey. URL<http://www.pnas.org/content/94/18/9723.full.pdf>. Accessed     September 20th 2013

Hadley, Debbie, 2013. URL< http://insects.about.com/od/beetles/p/Life-Cycle-Of-Fireflies-And-             Lightning-Bugs.htm >. Accessed October 18th 2013

Klug, T. 2001. Uses of Bioluminescence (Final). URL:
oluminescenceFina.html> Accessed 24 November 2013.

Lewis, S.M, C.K. Cratsley and J.A. Rooney. 2004. Nuptial Gifts and Sexual Selection in
 Photinus Fireflies. Integrative & Comparative Biology 3:234-237.

Luk, S.P.L., Marshall, S.A., and Branham, M. 2011. Canadian Journal of Arthropod Identification. URL<                 http://www.biology.ualberta.ca/bsc/ejournal/lmb_16/lmb_16.pdf   >. Accessed Sept 20th 2013

Lynch, T. 2010. Exploring Nature's Wonders Upon A Summer's Eve.
URL: Accessed 24 November 2013.

McKenzie, Jenny, 2001. University of Michigan Zoology.
URL<http://animaldiversity.ummz.umich.edu/accounts/Photinus_pyralis/>. Accessed October 10th 2013.

Museum of Science Boston, 2013. URL< https://legacy.mos.org/fireflywatch/identifying_gender>.  Accessed November 20th 2013.
Pfeiffer, B. 2009. Facts About Fireflies URL: fireflies.html.> Accessed 24
November 2013.

Srour, M. 2012. Fireflies (Coleoptera: Lampyridae). Accessed 4 November 2013.

Stranger-Hall, K.F, J.E. Lloyd and D.M. Hillis. 2007. Phylogeny of North American fireflies (Coleoptera: Lampyridae): Implications for the evolution of light signals. Molecular Phylogenetics and Evolution 45: 33-49.

Townseni, A. 1904. The History of the Light Organs of Photinus  margenellus.

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