A millipede’s diet consists of damp and decaying wood and plant materials. Millipedes are found outdoors where there is moisture and decaying organic matter, such as trash, grass clippings, mulch, rotting firewood, leaf litter, etc. They may invade the house during extremely wet seasons or extreme drought. Millipedes usually die within a few days of entering a structure unless there is a source of high moisture and a food supply. Millipedes are most active at night. Millipedes are oval, 1-1/2 inches long, segmented with many legs, coiling up when resting or dead. Every millipede has two pairs of legs attached to each apparent body segment. Most millipedes are brown or black, but some species are orange or red.