Content Updated: January 12, 2026

Key takeaways

  • Giant desert centipedes are the largest centipede species in North America, growing 6–8 inches long with 40–50 legs.
  • They primarily live outdoors in warm, dry environments but may wander indoors in search of moisture, shelter, or prey.
  • Although they are venomous and can deliver a painful pinch, they are not aggressive and prefer to avoid humans.
  • These centipedes can survive between 5 and 10 years and feed on insects, spiders, scorpions, small reptiles, and even small mammals.

Key takeaways

Scolopendra heros, commonly known as the giant desert centipede, is the largest centipede species in North America. Recognized for its impressive size and striking coloration, this species is most often found throughout the southern United States. Learn more about the giant desert centipede below.

Identification

Here are a few key features that can help you identify a giant desert centipede and distinguish it from other centipede species:

  • Size: Typically grow 6 to 8 inches long, which is much larger than common house centipedes
  • Coloration: Distinctive orange or reddish body with a black head and tail
  • Leg count: Like other centipedes, they have one pair of legs per body segment. Giant desert centipedes typically have around 40–50 legs
  • Behavior: Fast, aggressive predators that may raise their head or rear end defensively when threatened

giant desert centipede

Habitat

Giant desert centipedes prefer outdoor habitats but may wander indoors when seeking moisture, shelter, or prey. Outdoors, they can be found:

  • Under rocks, logs, or landscaping timbers
  • In leaf litter or mulch beds
  • Inside cracks in concrete, stone, or foundations
  • Around shaded, damp areas such as irrigation systems or garden edges
  • Beneath outdoor debris or stored items

While less common, they may be found indoors in:

  • Basements or crawl spaces
  • Bathrooms, laundry rooms, or other humid areas
  • Around door gaps, wall voids, or utility entry points
  • Beneath boxes or clutter in garages
  • Near drains, floor gaps, or cool, dark corners

Lifespan

Giant desert centipedes have a surprisingly long lifespan. In the right conditions, they can live 5 to 10 years, sometimes even longer, in captivity or stable outdoor environments. Their long lives are supported by their hardy bodies, efficient hunting abilities, and ability to survive harsh desert conditions.

Despite their size and venom, giant desert centipedes do have natural threats. Their main predators include birds, lizards, small mammals, and large spiders. In addition to predators, environmental conditions can also impact their survival. Extreme cold, prolonged dryness without shelter, habitat loss, and lack of prey can reduce their lifespan.

Diet

Giant desert centipedes are strict carnivores and nocturnal predators. Like other centipede species, they rely on speed and venom to subdue their prey. Their front legs, known as maxillipeds, contain venom glands that allow them to immobilize and kill their prey. Common prey includes:

  • Insects (crickets, beetles, roaches)
  • Other arthropods (spiders, scorpions, and smaller centipedes)
  • Small reptiles (like lizards)
  • Small mammals (such as young mice)
  • Occasionally amphibians

Are giant desert centipedes dangerous?

Giant desert centipedes can be intimidating, but they are generally not considered a major threat. They are not aggressive towards people and prefer to avoid them. However, they can deliver a painful pinch (not a bite) from their venomous front legs. Centipede venom can cause localized pain, swelling, and redness.

Desert centipedes do not transmit diseases to humans or pets. They also do not chew wood, damage structures, or infest household materials. If you see a desert centipede in your house, it may be a sign that there are gaps, cracks, other pest problems, or moisture issues in your home.

Tips for giant desert centipede prevention

Giant desert centipedes rarely enter homes, but they may come inside when searching for moisture, shelter, or prey. Indoors, they’re most attracted to damp areas and cluttered spaces where insects are abundant. Here are a few centipede prevention tips that can help keep your home protected:

  • Use a dehumidifier in bathrooms, laundry rooms, or basements to help reduce humidity levels.
  • Seal cracks and gaps in foundations, exterior walls, and around windows or doors to block entry points.
  • Fix or replace damaged window screens to prevent centipedes and their prey from entering.
  • Reduce clutter in storage areas, closets, garages, and basements where centipedes can hide.
  • Move firewood, rocks, and debris away from the home’s foundation, as these provide outdoor shelter.

If you’re concerned about centipedes entering your home, Terminix is here to help. Our experts can identify what’s attracting these pests to your home and create a tailored centipede control and prevention plan to help keep them out.