

Turn off the Lights
There are about 2,000 different species of fireflies and they all use bioluminescence (the production of light by a living creature) in order to attract mates or for other communication. If they cannot communicate with each other, they will not show up near your home. So, turn off the phones and the porch lights to make a more habitable environment for them.
Create a Lush Environment

Moisture
Fireflies thrive around lakes, rivers, streams, or ponds. They also like moist, grassy meadows and marshes. If you don't live in a typically moist environment, consider putting in a water feature for the little guys.
Provide Cover
Fireflies like to know they're protected. They rest during the day in tall grass or shrubs that provide shelter. If you tend to mow the lawn a lot, you could kill them while they're sleeping.
Plant Flowers

Say No to Insecticides
When you spray your yard to get rid of annoying insects, you also get rid of the ones you like. Pesticides (weed killers) are also believed to have a negative effect on fireflies.
Don't Kill Slugs
Firefly babies feed off slimy bugs like slugs, snails, and worms. They paralyze their prey by injecting an enzyme and then suck out the prey's juices. It sounds gross, but hey, if you want beautiful bugs, sacrifices must be made somewhere.
