Explore the space between the imperceptible and apparent from a number of intervals of light and shadow that are drawing figures produced by the flight of some insects attracted by a light source. During the night, the insects are served in the moonlight and stars to navigate their migratory flights. But to find another source of light, as it can be a light bulb, experiment a series of changes in their behavior. No one knows for sure the origin of this everyday phenomenon, called phototaxis. However it is believed that the most likely is that these cold-blooded insects, seeking the heat produced by the light.