Types of Centipedes: Identification, Bites, and Home Control

Introduction to Centipedes

Centipedes are a diverse group of elongated, multi-legged arthropods belonging to the class Chilopoda. They have a vast distribution around the world, inhabiting various environments from forests to homes. While the name “centipede” means “hundred feet,” no centipede actually has exactly 100 legs; their leg count varies among species, typically an odd number of pairs. Centipedes play an important role in ecosystems as predatory invertebrates, feeding on insects and other small animals.

Understanding the different types of centipedes, their characteristics, and behaviors can help homeowners identify these creatures and decide when control measures are necessary. This article covers the most common centipede types you may encounter both indoors and outdoors, focusing on their appearance, habits, and significance.

What Are Centipedes?

Centipedes are part of the subphylum Myriapoda, distinguished from millipedes by having only one pair of legs per body segment and more predatory habits. They possess elongated bodies with many segments and a pair of legs per segment. These arthropods have venomous claws called forcipules located just behind the head, which they use to subdue prey.

• Number of Legs: Centipedes have varying numbers of legs by species, always an odd number of pairs—ranging from 15 to nearly 191 pairs.
• Movement: Most are agile and adapted for fast movement to catch prey, unlike the slower, detritus-feeding millipedes.
• Habitats: They prefer moist environments such as leaf litter, under rocks, logs, and inside homes in damp areas.

Common Types of Centipedes

Various centipede species belong mainly to five orders: Scutigeromorpha, Scolopendromorpha, Lithobiomorpha, Geophilomorpha, and Craterostigmomorpha. Each order has distinct traits and behaviors.

1. House Centipede (Scutigera coleoptrata)

The house centipede is the type most commonly found inside homes in Europe, North America, and parts of Australia. Easily recognizable by its long, slender body and exceptionally long legs, it ranges about 1 inch in length. Its leg pairs are delicate and striped, giving it a fast, spider-like appearance.

• Appearance: Yellowish-grey body with up to 15 pairs of very long legs.
• Behavior: Nocturnal hunter that feeds on insects and spiders, making it a beneficial pest controller indoors.
• Lifespan & Reproduction: Can live several years and lay eggs in hidden crevices.
• Nuisance: Although able to bite, they are generally harmless and bites are rare and not serious.

2. Stone Centipedes (Lithobiomorpha)

Stone centipedes are smaller, typically about 1 inch long. They live outdoors under stones, logs, and leaf litter and have more robust, shorter legs compared to house centipedes. They often have 15 pairs of legs and are fast movers.

• Appearance: Flattened body, typically brownish or reddish with darker markings.
• Habitat: Moist soil and rocky areas; they avoid bright light.
• Role: Predators of insects, helping control garden pests.

3. Soil Centipedes (Geophilomorpha)

These centipedes are very slender and worm-like, often blind or with reduced eyes. They can have numerous leg pairs, sometimes exceeding 30 pairs, and are adapted for burrowing in soil.

• Appearance: Long, narrow body with many leg segments; usually pale yellow or brown.
• Behavior: Mostly subterranean, feeding on small soil invertebrates.
• Importance: They aerate soils as they move and help maintain soil ecosystems.

4. Tropical Giant Centipedes (Scolopendromorpha)

This group contains the largest centipedes in the world, including the infamous Scolopendra gigantea, which can grow up to 11 inches long. These centipedes have powerful venom and hunt larger prey, including lizards, birds, and small mammals.

• Appearance: Robust body with 21 or 23 pairs of legs, often brightly colored.
• Behavior: Aggressive predators with painful bites; usually nocturnal.
• Distribution: Found mostly in tropical and subtropical regions.

Identifying Features of Centipedes

Do Centipedes Bite Humans?

Centipedes have venomous claws they use to capture prey and can bite humans if handled or disturbed. Bites from common household species are usually not dangerous but can be painful, causing localized swelling and irritation. Tropical giant centipedes may deliver more severe bites needing medical attention. Generally, centipedes are not aggressive unless provoked.

How to Control and Prevent Centipedes in Your Home

Because centipedes prey on insects, they can be beneficial. However, if they become abundant indoors, some control measures may be desired.

• Reduce Moisture: Fix leaks and reduce damp areas where centipedes thrive.
• Remove Shelter: Clean up piles of leaves, rocks, and wood near the foundation.
• Seal Entry Points: Close cracks and crevices in walls, floors, and windows.
• Reduce Insect Prey: Manage other household insects to limit centipedes’ food supply.
• Pesticides: Use labeled insecticides with care when infestation is severe.

FAQs About Centipedes

Q: Are centipedes harmful to humans?

A: Most centipedes are not dangerous to humans. Their bites can be painful and cause minor irritation but rarely result in severe reactions.

Q: Why do centipedes come inside houses?

A: Centipedes enter homes searching for food and moisture, often during wetter months or when outdoor conditions are unfavorable.

Q: How can I identify if a centipede is a house centipede?

A: House centipedes have long, thin legs that look like fine hairs, a pale body with dark stripes, and move rapidly with a distinctive gait.

Q: Do centipedes help control pests?

A: Yes, centipedes are beneficial predators that feed on many household pests such as spiders, flies, and cockroaches.

Q: Can centipedes live without moisture?

A: Most centipedes require humid environments since they are prone to drying out. They are often found in damp, sheltered locations.