Identification
House centipedes are long, slender arthropods measuring about 1 to 1.5 inches in length. They have a yellowish-gray body with three dark longitudinal stripes along the back. Their most distinctive feature is their 15 pairs of extremely long, delicate legs, which allow them to move quickly. They have large, compound eyes and long, sensitive antennae.
Lifecycle & Reproduction
House centipedes undergo incomplete metamorphosis, progressing from egg to nymph to adult. Females lay eggs in damp, secluded areas, with each clutch containing 35 to 50 eggs. Nymphs hatch with fewer legs and develop additional pairs with each molt. House centipedes can live for 3 to 6 years.
Habits, Diet & Behavior
House centipedes are nocturnal hunters that actively seek out prey instead of using webs or traps. They feed on insects, spiders, silverfish, and other household pests. Their speed and venomous fangs allow them to subdue prey quickly. They rarely bite humans but may do so if handled aggressively.
Where You’ll Find Them / Typical Locations
House centipedes prefer dark, damp environments, including:
- Basements and crawl spaces
- Bathrooms and laundry rooms
- Under sinks and near plumbing fixtures
- Closets and storage areas
- Inside wall voids and under floorboards
Threats & Danger
House centipedes are not dangerous to humans. Their bites are rare and usually cause minor irritation. They are beneficial as they help control insect populations inside homes. However, their fast movements and long legs can make them unsettling for homeowners.
Prevention
- Reduce indoor humidity levels with dehumidifiers or ventilation
- Seal cracks and gaps around windows, doors, and foundations
- Eliminate clutter in basements and storage areas
- Repair leaks and remove standing water sources
- Minimize insect populations to reduce their food supply
Signs of Infestation
- Sightings of fast-moving centipedes on walls or floors
- Presence of shed exoskeletons in damp areas
- Increased activity in humid rooms such as bathrooms
- Finding centipedes in dark storage spaces or under furniture
- Presence of other pests that attract centipedes
How to Get Rid of It
- Use sticky traps to monitor and capture centipedes
- Apply insecticides or natural repellents in high-activity areas
- Reduce moisture levels to make environments less hospitable
- Remove clutter and potential hiding spots
- Contact a professional pest control service for severe infestations