Appendix
Figure1. http://www.yvonnelieblein.com/the-art-of-ask-piration/
Figure 2. http://www.learn-malayalam.com/FireFlies-in-Kerala.html
Figure 3. http://iris.biosci.ohio-state.edu/projects/ffiles/biolum.html
Figure 4. http://finance.groups.yahoo.com/group/lessko888/message/26
Figure 5. http://ase.tufts.edu/biology/firefly/
Figure 6. http://beautiful-pictures-world.blogspot.com.au/2012/01/sexual-communication-male-fireflies.html#.UFkgl1GMWSp