Description Distribution HABITAT BEHAVIOUR Dark grey/Black in colour, 20-45 millimeters long. Smooth & Cylindrical in appearance.   Widespread in Victoria, Tasmania, South Australia, NSW, Western Australia.  Woodlands, Grasslands and suburban gardens.  Introduced invasive species, often assembling in plague numbers. Breeding season between March and early winter.   Autumn Pests – Invasion of the Portuguese Millipedes Portuguese Millipedes were introduced into Australia in the 1950’s … Continue reading Autumn Pests – Invasion of the Portuguese Millipede