Which country faces periodic millipede swarms?

Parafontaria laminata armigera, a species of millipedes, is infamous for swarming tracks in thick-forested mountains of Japan. These poisonous creatures are endemic to Japan. They swarm train tracks only once a decade. Since 1920, Japanese train drivers are forced to halt until these invertebrates cleared the tracks. According to a new study, the millipedes are living in an approximate 8-year life cycle, whereby a brood will travel to a new habitat to eat food, lay eggs and die. Eight years later, a new broods will travel again, leading once-in-a-decade swarms.