Look for variations of color, ranging from yellows to greens. Observe the fireflies under the magnifying lens for a few minutes to see if you can follow their blinking patterns. Explanation A firefly, also called a lightning bug, is really a type of beetle that uses light to attract its mate. Fireflies have a special organ under the body that causes the light to turn on and off. When they light, they give a signal to their mates.
Fireflies start signaling at dusk and continue until late in the evening.
They can be seen from midsummer to early autumn. Look through the other end into the milky water and into the flashlight. Keep adding a little more milk until the flashlight looks red, like a sunset. The sky is blue for the same reason that sunsets are red. Think of the flashlight as representing the sun, and the milky water, the atmosphere complete with small particles.