Millipedes and centipedes look similar but behave very differently. Millipedes are slow, round-bodied scavengers with two pairs of legs per body segment, and they’re harmless to humans. Centipedes are fast, flat-bodied predators with one pair of legs per segment, and they can bite. For Shreveport homeowners, telling them apart helps you respond to the right pest problem the right way.
Spotting a many-legged creature scurrying across your bathroom floor is never a fun moment. But before you react, it helps to know what you’re actually looking at. Is it a millipede or a centipede? The two are often confused, yet they signal different things about your home—and call for different solutions.
Shreveport’s warm, humid climate makes it a comfortable home for both creatures. Heavy rainfall, mild winters, and plenty of moisture-loving vegetation create ideal conditions for these critters to thrive, especially around foundations, mulch beds, and damp basements.
This guide breaks down the key differences between millipedes and centipedes, explains why those differences matter for your household, and shows you how to keep both from turning your home into theirs.
What’s the difference between millipedes and centipedes?
Although they belong to the same broad group (arthropods), millipedes and centipedes are separate classes of animals with distinct anatomy and behavior. The easiest way to remember the difference: millipedes munch on decaying plants, while centipedes hunt other bugs.
Here’s a side-by-side comparison:
|
Feature |
Millipedes |
Centipedes |
|---|---|---|
|
Legs per body segment |
Two pairs |
One pair |
|
Body shape |
Round, tube-like |
Flat |
|
Movement |
Slow |
Fast |
|
Diet |
Decaying plant matter |
Live insects (predators) |
|
Defense |
Curl into a coil, release foul odor |
Bite using venomous claws |
|
Bite risk to humans |
None |
Yes, though rarely serious |
|
Typical color |
Brown, black, reddish |
Yellowish to dark brown |
The leg count is the most reliable giveaway. Despite their names, neither creature actually has a thousand or a hundred legs. Most house-dwelling millipedes have between 40 and 400 legs, while common centipedes have 15 to 30 pairs.
Are millipedes or centipedes dangerous to humans?
Millipedes do not bite. Their main defense is curling into a tight spiral and secreting a smelly fluid that can irritate skin or stain surfaces. Washing your hands after handling one is usually enough to avoid any discomfort.
Centipedes, on the other hand, are active predators armed with venomous claws called forcipules. A centipede bite can cause pain, redness, and swelling similar to a bee sting. For most healthy adults, the reaction is mild and short-lived. However, people with allergies, young children, and pets may experience stronger reactions.
The house centipede common in Louisiana homes is generally considered beneficial because it eats cockroaches, spiders, and other pests. Still, few homeowners want to share their space with one.
Why does the difference matter for your Shreveport home?
Knowing which pest you have tells you something important about your home’s environment.
A millipede problem points to excess moisture. Millipedes feed on damp, decaying organic material. If you’re finding them indoors, it often signals high humidity, water leaks, or moisture buildup near your foundation. They typically wander inside during heavy rain or droughts when their outdoor habitat becomes too wet or too dry.
A centipede problem points to other pests. Because centipedes are predators, their presence usually means there’s a food source nearby—namely other insects. Spotting centipedes can be an early warning sign of a larger infestation of cockroaches, silverfish, or ants.
So the creature you find isn’t just a nuisance. It’s a clue. Treating a centipede issue without addressing the underlying insect population, for example, won’t solve the real problem.
How do you keep millipedes and centipedes out of your home?
Both pests are drawn to moisture and clutter, so many prevention steps overlap. Here are practical measures Shreveport homeowners can take:
- Reduce moisture. Fix leaky pipes, use a dehumidifier in basements, and ensure crawl spaces are well ventilated.
- Seal entry points. Caulk cracks in your foundation, install door sweeps, and repair damaged window screens.
- Manage the yard. Keep mulch, leaf piles, and firewood away from your home’s exterior, since these create cool, damp hiding spots.
- Improve drainage. Make sure gutters and downspouts direct water away from your foundation.
- Declutter. Remove cardboard boxes, newspapers, and other debris where pests like to hide.
- Address other pests. Since centipedes hunt insects, controlling their prey removes their reason to stay.
If you’ve tried these steps and still see activity, it may be time to call a professional. A licensed pest control technician can identify entry points, treat affected areas, and recommend long-term prevention tailored to Shreveport’s climate.
When should you call a pest control professional?
Choose professional help if you’re seeing pests repeatedly, if you’ve spotted signs of a larger insect infestation, or if anyone in your household has allergies or sensitivities to bites. Occasional sightings after a heavy rain are normal and usually manageable on your own. Recurring problems, however, suggest a deeper issue—such as a moisture source or hidden pest population—that’s best diagnosed by an expert.
Protecting your home from many-legged invaders
Millipedes and centipedes may look like cousins, but their differences matter more than you’d think. Millipedes are harmless scavengers that signal moisture problems, while centipedes are biting predators that hint at other pests in your home. By learning to tell them apart, you can respond to the right problem with the right solution.
Start with the basics: control moisture, seal up entry points, and keep your yard tidy. If many-legged visitors keep showing up despite your best efforts, reaching out to a local pest control professional is the smartest next step toward a pest-free home.
Frequently asked questions
Do millipedes or centipedes bite?
Centipedes can bite using venomous claws, causing pain and swelling similar to a bee sting. Millipedes do not bite, though they can release a foul-smelling fluid that may irritate skin.
How can I quickly tell a millipede from a centipede?
Count the legs per body segment. Millipedes have two pairs of legs per segment and a rounded body, while centipedes have one pair per segment and a flat body. Centipedes also move much faster.
Why am I suddenly seeing these pests in my Shreveport home?
Both pests seek shelter indoors during weather extremes. Heavy rain pushes them inside to escape flooding, while dry spells drive them indoors searching for moisture. Shreveport’s humid climate makes sightings especially common.
Are centipedes beneficial?
Yes. House centipedes prey on cockroaches, spiders, and other household pests, which makes them helpful in controlling other insects. That said, most homeowners still prefer to keep them outside.
Can I get rid of them on my own?
Often, yes. Reducing moisture, sealing entry points, and decluttering will deter both pests. If infestations persist or you spot signs of other insects, a pest control professional can address the root cause.
