The Giant Desert Centipede (Scolopendra heros) is reddish-orange body with yellow-green legs; dark head and tail segment and typically measures 4–8 inches. The Giant Desert Centipede (Scolopendra heros) is the largest centipede species in North America, reaching up to 8 inches in length. It is found throughout Arizona, New Mexico, Texas, and northern Mexico, thriving in des.

Yes — the Giant Desert Centipede is considered high-risk and its bite can cause significant pain and medical symptoms. Bite produces intense, burning pain and significant localized swelling. Venom can cause nausea, headache, and in rare cases allergic reactions requiring medical attention. Not typically life-threatening to healthy adults, but bites to children or allergic individuals warrant prompt medical evaluation. Do not handle.

In Arizona, giant desert centipedes are most often found in these situations: Large (4–8 inch) reddish-orange and yellow-green centipede found under rocks, logs, or debris. Nocturnal — most sightings occur at night or when disturbing outdoor harborage. Occasionally enters garages, sheds, and ground-floor rooms. More common after monsoon rains.

The Giant Desert Centipede is most active during: Spring through fall; peak activity during and after monsoon season (July–September). Arizona's warm desert climate can extend activity compared to cooler states, and monsoon season (July–September) often drives centipedes indoors as moisture levels rise.

Remove rock piles, wood stacks, and debris from around the home's perimeter. Seal gaps under doors, around pipes, and in foundation walls. Install door sweeps on garage and exterior doors. Reduce outdoor lighting that attracts prey insects. Keep vegetation trimmed back from the structure.

Perimeter barrier treatments targeting harborage areas under rocks, landscape timbers, and debris. Entry point sealing is critical. Pest Control Bros inspects the full property to identify harborage zones and applies targeted residual treatments that eliminate both centipedes and the prey insects drawing them close to the home.

Often, yes. Centipedes are predators — they follow their food supply. Finding giant desert centipedes indoors frequently suggests an underlying population of the insects and arthropods they hunt: cockroaches, silverfish, spiders, ants, or other small invertebrates. Pest Control Bros will inspect for both the centipedes and the prey species driving them indoors, addressing the root cause rather than just the symptom.