Fireflies are a sure sign of summer, but how much do you really know about them? There are over 2,000 firefly species and each species has its own unique light pattern!
Their signature light comes from a chemical process called bioluminescence, a reaction that occurs when chemicals in their body are exposed to oxygen. To create a flash pattern, the bug regulates the oxygen flow through its body to turn their taillight on and off. Males usually flash while in the air but females only flash when landed.
Lightning bugs tend to like warm, moist habitats so you can expect to see more lightning bugs on humid evenings, especially if you’re near a pond or marsh.
However, there’s been a large decrease in firefly spottings in past summers; scientists think that light pollution could be to blame. Light pollution from headlights, street lights and porch lights can confuse fireflies, interfering with communication and mating.
Turning off your outside lights at night is an easy way to attract lightning bugs to your yard and promote population growth. Other techniques include building a water feature, using only natural fertilizers on your lawn, and leaving tall patches of grass for the bugs to rest in during the day.
