What Do Centipedes Eat?

Centipedes eat insects, spiders, and other small arthropods. Inside a home, a house centipede may hunt cockroaches, silverfish, flies, moths, crickets, beetles, and spiders. Outdoor species feed on insects and other small animals they find beneath leaves, logs, rocks, mulch, and soil.

Finding a centipede indoors can mean that food, moisture, and shelter are available. However, one centipede does not automatically prove that your home has a large infestation of other pests. It may have wandered inside through a gap or followed prey into a humid part of the building.

Frequent sightings deserve closer attention. Reducing centipedes usually requires more than removing the individuals you see. You also need to address moisture, entry points, clutter, and the smaller pests they hunt.

What Is a Centipede’s Main Food?

Centipedes are predators. They do not eat wood, clothing, stored food, or household materials. They survive by catching other small animals.

Their exact diet depends on the species, body size, habitat, and available prey. House centipedes hunt small arthropods that live inside buildings. Larger outdoor centipedes can subdue larger insects and other invertebrates.

Common Prey	Where Centipedes May Find It	What Its Presence May Suggest
Cockroaches	Kitchens, bathrooms, cabinets, and wall voids	Food, water, or entry points are available
Silverfish	Bathrooms, closets, attics, and storage areas	High humidity or damp materials
Flies and moths	Windows, lights, pantries, and drains	An indoor breeding or entry source
Crickets	Garages, utility rooms, and ground-level rooms	Exterior gaps or moist hiding places
Spiders	Corners, basements, garages, and storage areas	Other insects are available as prey
Beetles and larvae	Carpets, stored goods, or outdoor debris	A separate insect issue may be present
Sowbugs and millipedes	Damp ground-level rooms and outdoor mulch	Excess moisture near the structure
Ants and termites	Soil, walls, wood, or structural gaps	A colony may be active nearby

Centipedes may occasionally catch bed bugs, termites, or other household pests, but they should not be treated as a control method. A few predators cannot reliably reach every hiding place, reproductive adult, egg, or developing insect in an established infestation.

How Centipedes Catch and Eat Their Prey

Centipedes are active hunters. They do not build webs or wait inside traps. They use their antennae to explore their surroundings and detect movement, chemicals, and vibrations associated with potential prey.

Once a centipede reaches its target, it grips the animal with its legs. A modified pair of appendages near the head, called forcipules, delivers venom that helps immobilize the prey. The centipede then uses its mouthparts to consume it.

House centipedes are especially fast. Their long legs allow them to move quickly across walls and floors while pursuing insects. They are mainly active at night, which is why homeowners may suddenly see one racing across a bathroom, bedroom, or basement after the lights turn on.

Research-based guidance from Penn State Extension describes house centipedes as predators that feed on many arthropods, including insects that people may otherwise consider pests. Their hunting behavior can be beneficial, but most homeowners still do not want a population living indoors.

Do Centipedes Eat Plants or Human Food?

Centipedes do not normally eat plants, crumbs, pantry foods, or the meals people leave on kitchen counters. They are almost entirely carnivorous.

A centipede seen near food is probably hunting insects attracted to the area rather than eating the food itself. Cockroaches, ants, flies, and stored-product pests may gather around crumbs, spills, grease, pet food, or poorly sealed packages. The centipede follows that prey.

Removing food residue can still help reduce centipede activity indirectly. A cleaner kitchen supports fewer insects, which leaves centipedes with fewer reasons to remain nearby.

Centipedes vs. Millipedes

Centipedes and millipedes are often confused because both have long, segmented bodies and numerous legs. Their diets and behavior are very different.

Feature	Centipede	Millipede
Diet	Predatory; eats insects and other small animals	Primarily feeds on decaying plant material
Legs	One pair per body segment	Usually two pairs per visible body segment
Body shape	Flatter and more flexible	Rounded or cylindrical
Movement	Usually fast	Usually slow
Defense	Uses speed, forcipules, and venom	Often curls into a coil and may release defensive fluids
Indoor meaning	May be hunting insects in a humid area	Usually wandered inside from damp outdoor conditions
Structural damage	Does not damage the home	Does not normally damage the home

Millipedes may enter buildings in noticeable numbers after rain or changes in outdoor moisture. They often die indoors because most rooms are too dry. Centipedes are better hunters and may survive longer if they can find both moisture and prey.

Neither arthropod eats structural wood. Finding one near damaged lumber does not mean it caused the damage.

Where Do Centipedes Live?

Centipedes lose moisture easily, so they seek protected environments that help keep their bodies from drying out. Outdoors, they commonly shelter beneath:

• Fallen leaves
• Mulch
• Stones
• Logs and loose bark
• Flowerpots
• Landscape timbers
• Compost
• Dense ground cover
• Damp soil
• Yard debris

Inside homes, centipedes are often found around bathrooms, laundry rooms, utility spaces, crawl spaces, garages, closets, sinks, and other humid or undisturbed areas.

House centipedes can complete their life cycle indoors when conditions remain suitable. Other species may simply wander inside after heavy rain, landscaping disturbance, or a period of hot or dry weather.

Florida’s humidity and long periods of warm weather can support centipedes and many of the insects they hunt. Shaded landscaping, wet mulch, plumbing leaks, and air-conditioning condensation may create favorable conditions near a home.

Does Seeing Centipedes Mean You Have Other Pests?

Seeing several house centipedes can suggest that other arthropods are available as prey. It does not identify which pest is present or confirm the size of its population.

Consider where and how often the centipedes appear.

What You Notice	Possible Explanation	Recommended Next Step
One centipede near an exterior door	It may have wandered inside	Remove it and inspect the door seal
Repeated sightings in a bathroom	Moisture and small insects may be present	Check plumbing, ventilation, and nearby gaps
Centipedes in several rooms	Prey or suitable shelter may be widespread	Inspect the home for other pest activity
Activity around boxes or storage	Clutter is providing undisturbed hiding areas	Organize storage and vacuum thoroughly
Centipedes near drains	Humidity or drain-associated insects may be present	Inspect for leaks and drain pest activity
Many centipedes after heavy rain	Outdoor conditions may have displaced them	Check foundation gaps and exterior moisture

Do not assume that centipedes are eliminating a cockroach, bed bug, or termite infestation for you. Their presence should prompt inspection rather than reassurance that the problem will solve itself.

Are Centipedes Dangerous?

Centipedes are venomous, not poisonous. They use venom to overpower their prey. A poisonous animal causes harm when it is touched or consumed, while a venomous animal delivers venom through a bite or sting.

House centipedes generally avoid people and prefer to escape when disturbed. Bites are uncommon and are more likely when someone handles, traps, or accidentally presses a centipede against the skin.

A bite from a larger centipede may cause temporary pain, redness, or swelling. Reactions vary by species and by the person who was bitten. Wash the area with soap and water and avoid scratching it.

Seek medical help for severe pain, spreading swelling, signs of infection, difficulty breathing, dizziness, or another concerning reaction. Do not handle an unidentified centipede with bare hands.

Centipedes do not spread diseases through feeding in the way mosquitoes, fleas, or ticks can. Their main impact indoors is the alarm they cause and the possibility that moisture or other pest populations are supporting them.

How to Reduce Centipede Activity Indoors

Removing a visible centipede provides immediate relief, but it does not change the conditions that brought it into the home. Long-term prevention focuses on moisture, prey, shelter, and access.

Reduce Moisture

Repair leaking pipes, faucets, appliances, and air-conditioning lines. Improve ventilation in bathrooms and laundry areas. Use a dehumidifier in persistently damp rooms when appropriate.

Check gutters and downspouts outside. Water should drain away from the foundation rather than collecting beside the structure.

Control the Insects They Eat

Inspect the home for cockroaches, silverfish, ants, flies, crickets, spiders, and other small arthropods. Pest control should address the actual source rather than relying on centipedes to hunt a few individuals.

Keep food sealed, clean spills, empty trash regularly, and avoid leaving pet food available overnight. These actions reduce the insects that centipedes may follow.

Remove Hiding Places

Reduce clutter in garages, closets, crawl spaces, and storage rooms. Store belongings in sealed plastic containers rather than damp cardboard boxes.

Vacuum along baseboards, beneath furniture, and around stored items. Sticky monitors can help reveal where centipedes and other crawling pests are most active.

Seal Entry Points

Inspect door sweeps, window screens, utility openings, foundation cracks, and gaps around pipes. Repair or seal suitable openings after determining whether pests are actively using them.

Move mulch, leaf litter, stacked wood, and dense vegetation away from the foundation when practical. Avoid keeping the soil beside the house continuously wet.

Why Spraying One Centipede May Not Solve the Problem

A direct spray may kill the centipede you see, but it does not correct high humidity, close entry points, or remove the insects supporting it. Broad applications without proper identification may also treat areas unrelated to the source.

The Environmental Protection Agency’s integrated pest management principles recommend identifying and monitoring pests, improving preventive conditions, and choosing targeted controls based on the level of activity. This approach is more useful than treating every sighting as an isolated problem.

Professional treatment may be appropriate when centipedes continue appearing despite moisture correction and exclusion. An inspection can also determine whether the activity is connected to cockroaches, silverfish, ants, spiders, or another underlying pest problem.

The Bottom Line

What do centipedes eat? They prey on insects, spiders, and other small arthropods. House centipedes may hunt cockroaches, silverfish, flies, moths, crickets, beetles, and spiders in humid parts of a home.

Their presence can be useful as a clue, but one centipede does not automatically mean you have a serious infestation. Frequent sightings are more meaningful because they may indicate ongoing moisture, available prey, or several entry points.

Reduce humidity, clean and organize protected areas, seal exterior gaps, and address the pests centipedes are feeding on. If centipedes keep appearing in your Florida home, Native Pest Management can inspect the property, identify contributing conditions, and recommend targeted treatment. Contact Native Pest Management to schedule an inspection or request a free quote.