Giant Black Millipede – crawls through the deep leaf litter

crawls through the deep leaf litter

Size: Body: 5–10 cm
Lifespan: 5–10 years
Diet: Detritivore: feeds on decaying plant matter, rotting wood and leaf litter. Important decomposer that breaks down tough organic material and recycles nutrients back into forest floor.
Habitat: Damp, dark basement of the forest. Obsessed with high humidity, living deep within rotting logs, under heavy stones and buried in thick layers of decomposing leaf litter. Require intact, humid microclimates.
Range: Throughout North and South Islands in native forests, particularly in areas with deep leaf litter and abundant rotting logs. Most common in lowland forested regions with high rainfall.
Endemism: Endemic
Main Threats: Habitat loss from forest clearance and removal of dead wood. Forest thinning which reduces humidity and dries out leaf litter. Predation from rats, pigs and introduced birds which turn over logs.
Population: Generally secure, but highly sensitive to drying out. If forest canopy thinned and floor loses moisture, these species are first to vanish. Require intact, humid microclimates to survive.
Conservation Status: Not Threatened
Human Risk: harmless
Handling Note: native millipede, detritivore role leave undisturbed
Conservation Note: Endemic millipede; not assessed by NZTCS as invertebrates are generally outside the scope of current threat classifications.
Te Ao Māori: In Māori tradition, millipedes and centipedes are often grouped under terms like Māwheke. They are seen as the quiet, rhythmic workers of the earth. Creatures that belong to the realm of Papatūānuku (the Earth Mother). Because they move with such a synchronised, wave-like motion, they are sometimes used as a metaphor for a group of people moving together in perfect coordination.

The armoured freight train of the New Zealand bush. A many-legged recycler. While the name suggests a thousand legs, most species carry between 40 and 400. Unlike centipedes which have one pair of legs per segment and are fast, venomous hunters, the millipede has two pairs of legs per segment. It is a slow-moving, peaceful vegetarian. They are built for pushing. Their rounded, cylindrical bodies and powerful legs allow them to bulldoze their way through heavy soil and decaying wood like a subterranean tractor. A train that runs on compost. They are the ultimate recyclers. A millipede's entire existence is dedicated to the long crunch. They eat decaying leaves, rotting wood and fungi. Processing vast amounts of organic matter and returning nutrients to the soil. They are incredibly long-lived for invertebrates. Some individuals reach ten years of age. They do not bite. They do not sting. Their only real defence is to curl into a tight, armoured spiral. Protecting their soft underside with their hard, calcified exoskeleton. If picked up, a distinct smell might be noticed. When threatened, many New Zealand millipedes secrete a pungent liquid from ozopores along their sides. This chemical cocktail can smell like iodine, almonds or chlorine. It is a chemical shield designed to make them taste terrible to birds and rodents. To a human, it is just a sign that the train would like to be left alone to continue its work. The forest floor is dark. The millipede pushes through the leaf litter. Hundreds of legs moving in waves. It does not know it is a recycler. It does not know it is armoured. It just wants to eat dead leaves.