
Community identification
Flat-backed Millipede
Polydesmida (Order)
- Order & Family
- Order Polydesmida; family varies by specific species (e.g., Paradoxosomatidae or Polydesmidae)
- Size
- Typically 10 mm to 50 mm (0.4 to 2 inches) in length depending on the species.
Natural Habitat
Damp environments, including leaf litter, mulch, gardens, under rocks or logs, and near building foundations.
Diet & Feeding
Detritivores; they primarily consume decaying organic matter, rotting wood, and damp leaves.
Behavior Patterns
Slow-moving and nocturnal. They are known for their flattened body segments and lack of eyes. Many species can produce defensive secretions when threatened.
Risks & Benefits
Benefits: Essential decomposers that recycle nutrients back into the soil. Risks: Harmless to humans, though some may secrete a pungent liquid (sometimes containing cyanide in trace amounts) that can irritate skin or eyes if handled roughly.