Why are Insects Attracted to Light?
Some insects are attracted to light because it is a safe place for them. It is also speculated that insects see it as a navigational aid. Flying north, they would want to keep the light of the sun or moon to their right, as may be the reason they fly in circles around a porch light. Look here for more information: http://www.wisegeek.com/why-are-insects-…
