Millipedes can grow anywhere from ¾ inch to more than 4 inches in length.
Millipedes are brown or black and have two pair of legs on each body segment unlike centipedes, which have one pair per segment.
Millipedes are slow crawling, round bodied pests that are harmless to humans. They do exude an unpleasant smelling secretion, which is made up of a combination of irritating chemicals that can cause skin rashes and may be toxic to small animals. Millipedes lose body fluids as they die, causing staining on indoor surfaces. Some millipedes live as long as eight years. Millipedes can live indoors in crawl spaces and basements or wherever moisture is present.
Millipedes are vegetarians and feed on decaying organic matter and live plants.
Millipedes lay their eggs in spring in the soil in batches of 20 to 300 eggs. Their populations can become quite large, reaching into the thousands when they have adequate food and plenty of moisture.
Millipedes protect themselves by rolling into a tight coil when disturbed, protecting their vulnerable ventral parts. When their living conditions deteriorate, they migrate to new areas, sometimes in large numbers.