Everything You Ever Wanted To Know About Fireflies

Firefly on a orange flowering plant

Fireflies Are One Of The Joys Of Summer!

Chasing fireflies are on the joys of summer. One of my fondest memory growing up was receiving a letter from Ranger Rick (yes I am dating myself) explaining why Fireflies, or Lightning Bugs, light up. It had always been fun to chase them around the yard at night with my friends. Turns out, I never asked Ranger Rick about Fireflies. My grandfather wanted to know the answer and wrote the question in my name! Nevertheless, the answer was fascinating.

A Little About Fireflies

Fireflies are neither flies or bugs (there really is an insect family called bugs!). They are actually soft winged beetles.

For the common eastern firefly, eggs are laid in moist soil and hatch about a month later. All immature fireflies (or larvae) are called glowworms. They emit light, too, though it is a low intensity glow used to warn predators that they taste bad. The larvae of our eastern firefly develop over two summers, overwintering twice, before pupating and emerging as adults this time of the year. Larvae are predacious on other ground-dwelling critters, including other insect larvae, slugs, and snails. While eastern firefly adults do not feed, other species are predacious on scale crawlers, aphids, and other small, soft-bodied insects.

Fireflies are considered beneficial insects because their larvae feed on animals that can harm our garden plants.

Why Do Fireflies Light Up

Sex! The males flash their light in order to attract females to mate with.  Males of the common eastern firefly (Photinus pyralis) flash every six seconds. Females watch the light “show” from below. If a display from a specific male is particularly attractive, she will flash a response. The male will then go to the female to mate.

The light emitted by a firefly is actually a chemical reaction in the beetle’s abdomen. The light organ or lantern has special cells that contain a chemical called luciferin. An enzyme called luciferase combines oxygen with luciferin in these cells to create light. Scientists actually do not know how fireflies regulate their lights to turn them on and off.

So the next time you are outside enjoying the summer light show, you will know all the facts behind the fireflies.

Note: This blog post has been modified from our content partners at www.rightplantz.com

Remember, Allentuck Landscaping Company is always here to help you design, install, construct and maintain you lawn and landscape. Give us a call!


Allentuck Landscaping Company
 is Your Residential Landscape Company

Phone: 301-515-1900 Email: info@allentucklandscaping.com

At Allentuck Landscaping Company, our mission is to create beautiful environments for people to enjoy. We see landscaping as a way to improve people’s lives.

The Allentuck Landscaping Company team has been delighting homeowners in Maryland, Washington DC and Northern Virginia for over 28 years with our turnkey approach to landscape design, installation, construction and maintenance. Most companies try to serve many types of customers at the same time; homeowners, shopping centers, office buildings and the list goes on. At Allentuck Landscaping Company, we focus on one customer, you, the homeowner. We have a singular focus on bringing you the best landscape practices, the best customer service, and the best value for your home.

Services Provide – Master Landscape Plans, Complete Maintenance Programs, Plantings, Patios, Walkways, Retaining Walls, Water Features, Outdoor Lighting, Outdoor Kitchens, Trellises & Pergolas, Irrigation Systems, Drainage Solutions, Grading & Sodding. Fire Pits & Fire Places, Spring Clean Ups, Decks, Fences

Areas Served – Chevy Chase, Bethesda, Potomac, Rockville, North Potomac, Darnestown, Gaithersburg, Germantown, Damascus, Boyds, Clarksburg, Ijamsville, Urbana, Frederick and Washington DC.

How Do I Fix Bad Drainage in My Yard?

Water should be a blessing for your yard — not a headache. But when every rainstorm leaves behind puddles, soggy spots, or even erosion, it’s a clear sign there’s a bigger issue. Bad drainage in my yard is something no homeowner wants to deal with, but the good news is, it’s fixable. With the right strategies, you can protect your landscape, your home, and your peace of mind. Let’s dive into exactly how to spot the problem, understand what’s causing

READ MORE »

Should You Aerate Your Lawn in the Spring?

Your lawn took a beating this winter. Soggy soil, heavy snow, kids and pets running across frozen turf — it all adds up to compacted soil and tired grass roots. As the weather warms in Montgomery County, many homeowners start asking: Should you aerate your lawn in the spring? The answer isn’t a simple yes or no — it depends on your grass type, the condition of your lawn, and what you’re hoping to achieve. Aeration is one of the

READ MORE »

Keys To An Outstanding Outdoor Kitchen

Outdoor kitchens have come a long way. What used to be a basic grill tucked onto the patio has evolved into a full-blown extension of the home—blending cooking, dining, and entertaining into one unforgettable experience. If you’re dreaming about backyard meals, sunset dinners, or hosting the ultimate summer party, it all starts with one thing: the keys to an outstanding outdoor kitchen. Here’s how to make sure your space isn’t just good—it’s exceptional. Think Like a Chef (and a Host)

READ MORE »

When Is It Safe To Plant Summer Annuals In Montgomery County, MD?

You’ve just walked into the garden center and—bam!—there they are. Bright, bold, blooming summer annuals lined up like candy in a store window. It’s tempting to grab a cart and start planting the moment the first warm day arrives. But hold on. In Montgomery County, MD, timing is everything. Planting too early can lead to disappointment—wilted flowers, stunted growth, or worse, a surprise cold snap that wipes out all your hard work. On the other hand, waiting just a bit

READ MORE »

5 Mulch Mistakes To Avoid (And How To Do It Right)

Mulch is one of the easiest ways to make your yard look polished while doing some serious behind-the-scenes work—like holding moisture in the soil, stopping weeds from popping up, and keeping roots cool. But here’s the catch: mulch mistakes are more common than most homeowners realize. And when mulch is used the wrong way, it can damage the very plants you’re trying to protect. Whether you’ve mulched for years or are just getting started, avoiding these five common errors can

READ MORE »

Lawn Mowing Height: Why It Matters More Than You Think

What Is The Correct Lawn Mowing Height For My Lawn? One of the most common questions we hear from both clients and homeowners is, “What’s the best lawn mowing height?” It’s a great question—and one that’s often misunderstood. Many people believe that mowing the lawn shorter means they’ll have to mow less often and that the lawn will look sharper and cleaner. But the truth is, mowing too short can actually harm your grass and lead to bigger problems down

READ MORE »