Size
Length: 60–90 mm
Lifespan
6–12 months
Diet
Leaves of mānuka, kānuka and other native shrubs.
Habitat
Dense scrub, forest margins and gardens where host plants like mānuka grow.
Range
Throughout North and South Islands in scrub and forest margins.
Endemism
Endemic
Main Threats
Predation by birds and spiders. Habitat loss in urban areas.
Population
Widespread and common in suitable habitats across both main islands.
Conservation Status
Not Threatened
Human Risk
harmless
Handling Note
relies on camouflage, does not bite or sting when handled
Conservation Note
Common endemic stick insect found throughout New Zealand in dense scrub and gardens, maintaining stable populations despite predation by introduced birds.
Assessment
NZTCS Invertebrates (2021)
Te Ao Māori
Stick insects were often viewed with curiosity by early settlers who noted their remarkable mimicry. While lacking specific Māori names in recorded texts they were part of the broader natural world observed in bush environments. Their presence indicated healthy native vegetation.
It is not a stick. It pretends to be one. The Common Tea-Tree Stick Insect relies on stillness rather than speed for survival. When motionless among twigs its green or brown body becomes nearly invisible to predators. This camouflage works until the wind moves the real branches and the insect remains rigid. Then it looks like a mistake. The species inhabits dense scrub and forest edges throughout New Zealand. It favours areas with abundant foliage from preferred host plants. Gardens often support healthy populations if left undisturbed by heavy pesticide use. The insect does not migrate. It stays where the food grows. Its diet consists almost entirely of leaves from native shrubs. Mānuka and kānuka are primary choices. It will also feed on other broadleaf species when necessary. The mouthparts are designed for chewing tough plant material. Digestion is slow. Energy conservation is key. Threats include habitat loss and introduced predators. Birds such as fantails and silvereyes hunt them actively. Spiders capture unwary individuals in webs. Human activity poses a risk through garden maintenance and chemical sprays. Despite these pressures the population remains stable. It reproduces quickly enough to offset losses. Females lay eggs in soil or leaf litter. These eggs can remain dormant for months. Hatching occurs when conditions are favourable. Nymphs resemble small versions of adults. They moult several times before reaching maturity. The life cycle is tied to seasonal growth of host plants. This insect does not sting. It does not bite. It offers no defence beyond hiding. If handled it may drop to the ground and play dead. This reflex is automatic. It buys time for escape. Most observers never notice them unless they move. That is the point.