Fauna
Invertebrate

Caribbean Giant Centipede

Scolopendra alternans

Also known as Haitian Giant Centipede, Florida Keys Centipede

Caribbean giant centipedes are nocturnal invertebrate predators that stalk forest floors and limestone crevices across the West Indies and South Florida. Equipped with powerful modified front legs known as toxicognaths, they overpower insects, small reptiles, and amphibians before dragging them into dark retreats. Their elongated, segmented bodies allow them to navigate tight burrows with remarkable agility while seeking refuge from daylight.

VenomousNocturnalPredatory
—observations
—countries
—peak records
Not EvaluatedConservation statusIUCN Red List categoriesLCNTVUENCREWEXNot Evaluated — not placed on the risk ladderRed List categories, explained →
Diet & preyInsects, Lizards, Frogs
Predators
  • Birds
  • Snakes
  • Small mammals
ThreatsHabitat loss, coastal development, pesticide application
HabitatsTropical hardwood hammocks, dry forests, coastal scrub, leaf litter
Life span5–10 years
  1. OrderScolopendromorpha
  2. FamilyScolopendridae
  3. GenusScolopendra
  4. SpeciesScolopendra alternans
Range data is not available yet.
Interaction riskVery high
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is very high
Delivers a painful venomous bite with modified pincer legs; observe safely without touching.
Why it is dangerous
Injects venom through strong pincer-like legs that causes severe throbbing pain, local swelling, and skin inflammation.
How to recognize a risky encounter
Recognized by its long flattened body with dark brown to reddish segments and bright yellowish-orange legs.
What to do
Never handle with bare hands; allow the animal to move off freely if uncovered during field exploration.
What to notice
Look for large, dark, multi-segmented centipedes under limestone slabs and decaying wood in hardwood hammocks.
Support conservation
Keep microhabitats intact by returning flipped logs and rocks to their exact original positions.
Responsible observation
  • Night Viewing: Search moist leaf litter or rotting logs after dusk using a red light to minimize stress.
  • Safe Distance: Refrain from turning over surface debris with bare hands where centipedes take shelter.
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