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American Giant Millipede

Narceus americanus

MillipedebeginnerHarmlessCommunal OK

No venom, no sting

Millipedes don't bite or sting and have no venom. Many do secrete defensive chemicals when stressed, so wash your hands after handling and keep them away from your eyes and mouth.

Secretes benzoquinones

Stains skin brown for several days and stings badly in the eyes or on broken skin. Wash your hands after handling, don't rub your face, and keep it well away from small children.

About

A great native beginner millipede. Same detritivore care as other giants — deep moist hardwood substrate it can eat, plus calcium. Harmless.

Taxonomy

FamilySpirobolidae
GenusNarceus
Native regionEastern USA
TypeTerrestrial
Temperamentdocile

Size & growth

Adult size4-5 inches
Growth rateslow
Life stagesNo distinct stages
DevelopmentAnamorphic — gains segments with each moult

Millipedes molt underground in a small chamber and can stay buried for weeks. If yours has disappeared into the substrate, leave it be — digging it up mid-molt can kill it.

Climate

Temperature68–78°F
Humidity70–85%

Enclosure

Adult size12x8x8 inches
Substratehardwood leaf litter + rotting wood + coco
Substrate depth4-6 inches
Water dishOptional
Moisture gradientRequired — keep one end damp, one end dry

Feeding

Feeding modeDetritivore (decaying matter)
Food & schedulecontinuous — leaf litter + veg + calcium
Supplemental calciumRequired — cuttlebone or a calcium powder

Times kept: 0 · Unverified community entry