House Centipede
Scutigera coleoptrata
In commercial settings, the house centipede is a reliable biological indicator of broader pest infestations — specifically of the prey insects it requires to survive and reproduce.
Its discovery in a food handling facility, hotel, or health care setting may cause significant customer or occupant distress, and its presence will constitute a pest-related finding during third-party audits even though the animal itself is a predator rather than a pest of food or structure.
Commercial pest management programmes should treat house centipede sightings as an alert signal requiring investigation into what prey populations are sustaining it. Long-term control depends on resolving the underlying prey pest problem and addressing the moisture conditions that sustain both the centipede and its prey.
Habitat
In commercial facilities, house centipedes are most consistently found in areas that combine moisture, darkness, and prey abundance: basement mechanical rooms, areas beneath commercial dishwashers or food preparation sinks, crawl spaces, loading dock areas, and janitor’s closets.
Their presence in upper-floor areas such as food storage rooms or customer-facing spaces indicates active movement through the building via wall voids, pipe chases, or elevator shafts.
Commercial IPM inspections should treat any room where house centipedes are found as a zone requiring moisture assessment and prey pest investigation, documenting findings in the inspection report.
Active Areas
Windsor
Tecumseh
LaSalle
Amherstburg
Lakeshore
Essex
Kingsville
Leamington
Chatham-Kent
Moderate prevalence in basements and damp areas of homes across Chatham-Kent.
St. Thomas
Moderate prevalence. House centipedes are a common basement discovery in St. Thomas homes.
Seasonality
House centipede activity in commercial facilities is relatively consistent year-round due to the stable temperature and humidity conditions that enclosed buildings provide. Monitoring data typically shows elevated catch in spring and early summer, corresponding to increased prey insect activity.
Commercial programmes should maintain continuous monitoring rather than applying seasonal adjustments.
Any sudden increase in monitoring trap catch should trigger an immediate investigation into changing conditions within the facility — new moisture sources, new prey species, or new entry points.
Spring
Summer
Autumn
Winter
Appearance
For commercial pest identification and audit documentation, the house centipede is 25–50 mm in body length with a 7–8 cm span when legs are extended. Its 15 pairs of long banded legs and swift movement are unmistakable.
Staff should be trained to distinguish it from millipedes (which are slow, cylindrical, and not predatory) and to understand that its presence warrants a pest investigation rather than stand-alone treatment.
Photographs for pest logs should capture both the full body span and close-up details of leg banding if possible. The house centipede should be flagged in inspection reports as an indicator species.
- Exactly 15 pairs of very long, banded legs — the last pair on females is considerably longer than the body
- Two very long antennae at the front and two long rear appendages that resemble additional antennae
- Moves in extremely fast, sudden bursts — among the fastest invertebrates relative to body size
- Active predator of other insects, spiders, and small arthropods — genuinely beneficial in the home
- Found in damp basements, bathrooms, utility rooms, and around floor drains
- Presence in a building is a strong indicator of an underlying population of other pest insects
Behaviour
House centipede behaviour is relevant to commercial pest management in two ways. First, their nocturnal activity means routine daytime facility inspections will significantly under-detect them; deploying sticky traps along wall-floor junctions overnight provides far more accurate population data.
Second, their wide hunting range — they cover substantial distances each night — means that a centipede found in a food preparation area may have its harbouring site in a distant part of the facility.
Systematic investigation of moist harbouring sites throughout the building, not just the room where the centipede was observed, is essential for effective management.
Lifecycle
Mating occurs in spring and summer. Females lay up to 35 eggs individually in soil or moist crevices over a season. Unlike most centipedes, the house centipede undergoes a gradual maturation with multiple nymphal instars over two to three years before reaching full adulthood. Adults may live a further two to three years, giving a total lifespan of up to five to six years. This slow development means populations build gradually but persist for extended periods.
Egg
Egg laying is difficult to detect and is not a primary management focus.
The primary management value of understanding the egg stage is recognising that populations are self-sustaining within the facility year-round and that control strategies must address all life stages.
Nymph
The multi-year nymphal development of the house centipede means that a population discovered in a commercial facility has likely been present and growing for several years.
Quick resolution through a single treatment is unrealistic; sustained integrated management addressing moisture, prey populations, and harbouring sites is required to achieve long-term suppression.
Adult
Adults in commercial facilities are active year-round, with activity elevated during warmer months when prey availability increases.
Adults are the stage most likely to be found in unexpected locations — food preparation areas, customer-facing spaces, or upper floors — due to their wide nightly hunting range. All adult sightings should be documented and trigger investigation of moisture and prey conditions in the surrounding area.
Signs You May Have a Problem
- Centipede sightings reported by staff in basement mechanical rooms, janitor's closets, under commercial dishwashers, or near floor drains
- Centipede bodies or shed legs found in overnight sticky monitoring traps deployed along wall-floor junctions
- Centipede sightings in unexpected upper-floor locations — food preparation areas or customer-facing spaces — indicating movement via wall voids or pipe chases
- Co-existing silverfish or cockroach populations confirmed in the facility, which are the primary prey species sustaining centipede colonies
- Persistent moisture conditions in affected areas such as condensation on cold pipes, active floor drain issues, or known roof leak history
- Customer or guest complaints following centipede encounters in a hospitality, food service, or health care setting
Risks & Concerns
Commercial risks from house centipede presence are primarily reputational and audit-related. In food service, hospitality, or health care settings, customer or patient encounters with house centipedes can result in complaints, negative reviews, and regulatory scrutiny.
During third-party food safety audits, centipede evidence in food zones is a recordable finding regardless of the species’ non-destructive nature.
Operationally, the house centipede’s primary significance is as an indicator: facilities should use each sighting as a trigger for a documented investigation into moisture management and prey pest populations, with findings and corrective actions recorded in the pest management programme file.
Prevention
- Incorporate house centipede monitoring into the facility's regular pest management programme as an indicator species requiring investigation rather than stand-alone treatment
- Conduct a comprehensive moisture audit of the facility, addressing all drainage, condensation, and leak issues identified
- Implement control programmes for all prey insect species present in the facility, as these are the primary driver of centipede populations
- Install door sweeps on all ground-level utility room doors to restrict movement between areas
- Ensure floor drain covers are in place and drains are maintained to prevent harbouring within drain systems
- Reduce interior clutter, stored materials at floor level, and any conditions that provide daytime harbouring sites for centipedes
DIY Control
- Deploy commercial sticky monitoring traps along perimeter walls in all high-risk areas and review trap catches at each scheduled inspection
- Apply residual insecticide in labelled harbouring sites (floor-wall crevices, pipe chases) in non-food zones
- Document all sightings and trap catches in the pest log with location and count to track trends and identify harbouring hotspots
- Initiate parallel treatment of prey insect populations identified during investigation
Professional Control
- Integrated pest management programme addressing house centipede as an indicator species within a broader moisture and prey pest management framework
- Professional inspection with thermal imaging to identify moisture zones and centipede aggregation sites within wall and floor assemblies
- Targeted application of residual insecticides in non-food harbouring sites by licensed applicators, with appropriate documentation for audit records
- Staff training on centipede identification, reporting procedures, and the significance of centipede sightings as indicator events
Frequently Asked Questions
Are house centipedes dangerous?
House centipedes do not pose a meaningful health risk to staff or customers. Their presence is primarily a nuisance and visual concern.
Does finding house centipedes mean I have other pest problems?
House centipede presence in a commercial building can be a useful indicator that other pest activity is occurring in the same area. Use centipede sightings as a trigger for a broader pest inspection.
Will killing house centipedes increase other pest populations?
The ecological benefit of house centipedes is not a practical reason to tolerate them in commercial settings. Address the underlying prey pest population and reduce harborage conditions.
How do I reduce house centipede numbers?
Moisture control and harborage reduction are the most effective long-term measures. Professional treatment of basement and crawlspace areas with residual insecticide can reduce centipede numbers significantly.
Do house centipedes bite?
Staff should be advised not to pick up house centipedes with bare hands. No other precautions are typically needed.
Why do house centipedes have so many legs?
This is a common curiosity question. House centipedes are predatory arthropods, not insects, and their leg count reflects their arthropod biology.