Ever found a centipede scurrying across your basement floor and wondered what it's actually doing there?
I've spent years observing these fascinating arthropods in both wild and indoor environments. What I've learned might surprise you.
Centipedes are exclusively carnivorous predators that feed on insects, spiders, worms, slugs, and other small arthropods. Larger species can also capture and eat small vertebrates including frogs, lizards, and mice. Using their venom-injecting forcipules, centipedes hunt primarily at night, playing an important ecological role as natural pest control.
Let me walk you through everything you need to know about centipede diets.
Are Centipedes Carnivorous?
Centipedes are strictly carnivorous predators.
They never eat plants or vegetables.
Every centipede species requires meat-based protein to survive.
Carnivorous: An organism that eats primarily or exclusively meat. Centipedes are obligate carnivores, meaning they must consume other animals to survive.
In my research of centipede feeding habits, I've found they're surprisingly efficient hunters.
A single house centipede can consume multiple prey items per night.
They're nature's pest control agents.
Prey Categories by Size
| Prey Category | Examples | Centipede Size Required |
|---|---|---|
| Small Insects | Flies, mosquitoes, fruit flies, gnats | All species |
| Medium Insects | Crickets, cockroaches, silverfish, beetles | Medium to large |
| Arachnids | Spiders, mites, small scorpions | Medium to large |
| Soft-bodied Prey | Worms, slugs, snails | All species |
| Other Arthropods | Millipedes, other centipedes | Large species |
| Small Vertebrates | Frogs, lizards, baby mice, small snakes | Giant tropical species only |
How Centipedes Hunt and Capture Prey?
Centipedes hunt using a fascinating multi-step process.
- Detection: Long antennae detect vibrations and chemical signals from nearby prey
- Approach: Quick movement brings the centipede within striking distance
- Capture: Forcipules (modified front legs) grab and hold the prey
- Venom Injection: Toxic venom paralyzes the prey and begins digestion
- Consumption: The centipede feeds while the prey is immobilized
Forcipules: Specialized modified front legs found only on centipedes. These hollow claws contain venom glands and are used to inject toxins into prey. Unlike fangs, forcipules are actually legs.
The venom serves dual purposes.
First, it immobilizes prey instantly.
Second, it begins breaking down tissues externally before consumption.
I've witnessed centipedes capture prey much larger than themselves.
Their hunting efficiency is remarkable.
A house centipede can catch a cockroach in under a second.
Nocturnal Hunting Patterns
Centipedes are primarily nocturnal hunters.
They hide during daylight hours in dark, moist places.
Nighttime brings peak hunting activity.
This explains why you typically see centipedes at night.
Their excellent vibration sensitivity helps them locate prey in complete darkness.
As a fellow observer of nature, I find their adaptations incredible.
Complete List of What Centipedes Eat
Let me break down the complete centipede diet by prey category.
Insects (Primary Food Source)
Insects make up the majority of most centipede diets.
- Flies and mosquitoes: Easy catches for all centipede species
- Cockroaches: Favorite prey for house centipedes
- Crickets: Nutritious meals for medium-sized centipedes
- Beetles: Consumed when soft-bodied species are available
- Silverfish: Common household prey
- Earwigs: Taken despite their defensive pincers
- Ants: Some species avoid ants due to formic acid
In my experience observing house centipedes, cockroaches and silverfish are their preferred meals.
They're particularly effective at catching fast-moving insects.
Arachnids
Centipedes readily eat spiders and their relatives.
Spiders provide good nutritional value.
Small scorpions fall prey to larger centipede species.
Mites are consumed by smaller centipedes.
Worms and Soft-bodied Prey
Earthworms are easy targets for soil-dwelling centipedes.
Slugs and snails provide moisture along with nutrition.
These soft prey require less venom to subdue.
Other Arthropods
Centipedes sometimes eat millipedes.
They also eat each other when size differences allow.
Larger species routinely consume smaller centipedes.
Small Vertebrates (Giant Species Only)
Only the largest tropical centipedes eat vertebrates.
Species like Scolopendra gigantea can capture small vertebrates.
Prey includes frogs, lizards, small snakes, and baby mice.
This only happens with species over 8 inches long.
I've seen footage of giant centipedes taking down prey 10 times their weight.
It's both terrifying and fascinating.
Diet Variations by Centipede Species
Different centipede species have different dietary preferences.
| Species | Common Name | Typical Diet | Max Size |
|---|---|---|---|
| Scutigera coleoptrata | House Centipede | Spiders, roaches, silverfish, flies | 1.5 inches |
| Scolopendra heros | Giant Desert Centipede | Insects, small lizards, mice | 8 inches |
| Lithobiomorpha spp. | Stone Centipede | Soil insects, worms, small arthropods | 2 inches |
| Geophilomorpha spp. | Soil Centipede | Earthworms, soil larvae | 3 inches |
| Scolopendra gigantea | Giant Centipede | Insects, frogs, lizards, mice | 12 inches |
What Do House Centipedes Eat?
House centipedes are the most common species in homes.
They eat household pests like cockroaches, spiders, and silverfish.
This makes them beneficial despite their frightening appearance.
In my years of pest management observation, I've learned house centipedes are allies.
They control populations of actual pest insects.
What Do Giant Centipedes Eat?
Giant centipedes have much more varied diets.
Large species can eat vertebrate prey.
Their venom is more potent than smaller species.
This allows them to take down larger prey.
What Do Baby Centipedes Eat vs Adults?
Baby centipedes have different dietary needs than adults.
They start by eating tiny prey after their first molt.
Size-appropriate prey includes fruit flies, springtails, and tiny worm segments.
As they grow through successive molts, their prey size increases.
A baby house centipede might eat fruit flies initially.
Within months, it progresses to larger insects.
I've observed this progression in captive-raised centipedes.
The growth rate depends entirely on food availability.
Molting and Diet Changes
Centipedes stop eating before molting.
They hide and become inactive during this vulnerable period.
After molting, they resume eating immediately.
Each molt brings the ability to handle larger prey.
How Often Do Centipedes Eat?
Feeding frequency varies by several factors.
Temperature affects metabolism significantly.
Warmer conditions increase feeding needs.
Adult centipedes typically eat every 2-3 days.
Growing juveniles may eat daily.
Larger species can go longer between meals.
In captivity, I've fed adult centipedes twice weekly successfully.
What Do Centipedes Drink?
Centipedes obtain moisture primarily from their prey.
They don't typically drink standing water.
However, they may drink water droplets in humid environments.
This is why they're attracted to damp areas.
Bathrooms, basements, and crawl spaces provide ideal conditions.
Are Centipedes Good to Have Around?
Centipedes provide significant ecological benefits.
They control insect populations naturally.
A single centipede can eat dozens of pest insects weekly.
In gardens, they reduce harmful insect populations.
Indoors, they control cockroaches, silverfish, and spiders.
I've seen basements with centipedes have noticeably fewer other pests.
Benefits vs. Risks
| Benefits | Risks |
|---|---|
| Natural pest control | Occasional painful bite |
| Reduces need for chemical pesticides | Frightening appearance |
| Controls roaches, spiders, silverfish | May indicate moisture problems |
| Harmless to plants and structures | Allergic reactions rare but possible |
Pro Tip: If you see centipedes, focus on reducing moisture and clutter rather than eliminating them directly. They're helping control other pest populations.
What Attracts Centipedes to Your Home?
Several factors attract centipedes indoors.
- Moisture: Damp basements, bathrooms, and crawl spaces
- Prey availability: Presence of other insects
- Clutter: Piles of debris provide hiding spots
- Darkness: Undisturbed areas with minimal light
- Cracks and crevices: Entry points through foundations
Reducing moisture is the most effective deterrent.
I've seen dehumidifiers dramatically reduce centipede activity.
Myths vs. Facts About Centipede Diets
Common Myth: Centipedes eat plants and vegetables.
Reality: Centipedes are exclusively carnivorous. They never eat plant matter.
Common Myth: Centipedes bite humans for food.
Reality: Centipedes only bite humans in self-defense. We're too large to be prey.
Common Myth: Centipedes eat bed bugs.
Reality: While possible, centipedes rarely eat bed bugs because bed bugs typically hide where centipedes can't reach.
Frequently Asked Questions
What do centipedes eat in the house?
House centipedes primarily eat spiders, cockroaches, silverfish, flies, and other small insects found indoors. They are attracted to homes where these prey items are abundant and moisture is present.
Do centipedes eat plants?
No, centipedes never eat plants. They are exclusively carnivorous predators that only consume other animals. You do not need to worry about centipedes damaging your garden or houseplants.
What do centipedes drink?
Centipedes obtain most of their moisture from the prey they eat. They may also drink water droplets in damp environments but do not typically drink from standing water sources. This is why they are attracted to moist, humid areas.
Do centipedes eat spiders?
Yes, centipedes readily eat spiders. Spiders are a common food source for house centipedes and many other species. Centipedes often compete with spiders for the same prey, and they will eat spiders when given the opportunity.
Do centipedes eat roaches?
Yes, cockroaches are one of the preferred food sources for house centipedes. A single house centipede can consume multiple cockroaches per week, making them a natural form of pest control in homes with cockroach problems.
Do centipedes eat bed bugs?
While centipedes could theoretically eat bed bugs, it rarely happens in practice. Bed bugs typically hide in mattresses and furniture where centipedes cannot reach them. Centipedes are not an effective solution for bed bug control.
What do baby centipedes eat?
Baby centipedes eat tiny prey appropriate for their size, including fruit flies, springtails, pinhead crickets, and small worm segments. As they grow and molt, they progress to larger prey items. Juvenile centipedes typically need to eat more frequently than adults.
How often do centipedes eat?
Adult centipedes typically eat every 2-3 days, while growing juveniles may eat daily. Feeding frequency depends on temperature, prey availability, and the centipede's size. Larger species can go longer between meals than smaller ones.
Are centipedes carnivorous?
Yes, all centipedes are obligate carnivores. They must eat meat to survive and never consume plant matter. Their entire digestive system is adapted for processing other animals, from insects to small vertebrates depending on species size.
Do centipedes eat each other?
Yes, larger centipedes will eat smaller centipedes when given the opportunity. This cannibalistic behavior is common in the arthropod world and helps regulate centipede populations in nature. It is one reason why adult and baby centipedes are often found in different locations.
Final Thoughts
After years of studying these fascinating creatures, I've gained significant respect for centipedes.
They're efficient predators that play crucial ecological roles.
Understanding their diet helps us appreciate their value.
Whether in the wild or in your home, centipedes are doing important work controlling pest populations.
