Greenhouse Millipede

Scientific Name: Oxidus gracilis

Order & Family: Order Polydesmida, Family Paradoxosomatidae

Size: 18.5 to 23 mm (0.7 to 0.9 inches) in length

Greenhouse Millipede

Natural Habitat

Damp environments like leaf litter, mulch, greenhouses, and gardens; often found under stones or wood.

Diet & Feeding

Primarily detritivorous, feeding on decaying organic matter and leaf litter; occasionally feeds on young, living plant roots or stems.

Behavior Patterns

Nocturnal and moisture-seeking; they often mass migrate during periods of heavy rain and curl into a tight spiral when threatened.

Risks & Benefits

Generally harmless to humans but can produce a foul-smelling secretion containing hydrogen cyanide if handled; beneficial to ecosystems as decomposers.

Identified on: 6/3/2026