The Magic of Texas Lightning Bugs

Small flashes of light moving in the darkness capture our attention on warm summer evenings. The magical twinkling of fireflies instantly brings back fond childhood memories. Many of us grabbed glass jars, poked holes in the lids, and caught them to watch them flash.

Texas is home to approximately 45 distinct species of fireflies. Fireflies and lightning bugs are exactly the same creature. However, they are neither true flies nor bugs. Fireflies are actually beetles belonging to the Lampyridae family.

These unique beetles most commonly appear in East and Central Texas during early summer. They become highly active at dusk and flash for an hour or two. Unfortunately, modern firefly numbers do not compare to the abundance of the past. Researchers blame this dwindling population on habitat loss and light pollution.

Create a Welcoming Habitat to Attract Fireflies

Fortunately, fireflies respond remarkably well to a good habitat. Therefore, if you provide their basic needs, they will quickly return to your yard. They simply require food, shelter, moisture, darkness, and protection from chemicals.

Adult fireflies live for just two to four weeks, focusing entirely on reproduction. They lay eggs in damp environments. Consequently, the larvae spend their long development stage in leaf litter, rotting wood, and under rocks.

You can easily build a thriving habitat with these summer gardening tips:

• Leave Leaf Litter: Pick a shaded corner under a tree and let leaves pile up two to four inches deep.
• Keep Rotting Wood: Let a fallen log rot in place; as a result, it will provide excellent shelter.
• Provide Moisture: Maintain a small depression that holds water during the summer mating season.
• Mow Less Often: Avoid over-mowing your lawn. Frequent mowing disturbs resting adults, dries out the soil, and destroys critical larval cover.
• Plant Native Vegetation: Choose native plants because they support the local insects that fireflies eat. Furthermore, native plants require far less water and fewer chemicals.

Reduce Light Pollution in Your Yard

Light pollution directly interrupts critical firefly flash patterns. Both males and females use their flashing lights to communicate. Specifically, they use light to attract mates, defend territory, and warn off predators.

Artificial nighttime lights easily drown out those essential signals. Therefore, you should always turn off unnecessary exterior and garden lights during firefly season. In addition, install motion sensors so your outdoor lights only turn on when necessary.

A little effort in restoring habitat can help these insects return. Your yard will soon create magical memories for years to come.

For an interesting article on attracting fireflies, click HERE to view what the National Wildlife Foundation has to offer.

About the Author: This article was written by Bonnie Schilly, a Smith County Master Gardener. Smith County Master Gardeners are volunteer educators certified and coordinated by the Texas A&M AgriLife Extension Service.