chirps loudly on warm summer evenings
- Size
- Length: 2–3 cm
- Lifespan
- 1–2 years
- Diet
- Omnivorous: feeds on plant material, grass, seeds and small insects. Also scavenges on dead animals. Can damage seedling crops and pastures.
- Habitat
- Grasslands, gardens, pastures, crop fields, and under loose bark, logs and stones. The nocturnal musicians of the suburbs, heard chirping loudly on warm summer evenings.
- Range
- Throughout North and South Islands in grasslands, gardens, pastures and urban areas. Most common in lowland agricultural regions with warm summers.
- Endemism
- Introduced
- Main Threats
- None. This introduced species is well-established and widespread. Considered a minor pest in agriculture but faces no conservation threats.
- Population
- Originally from Australia, now widespread throughout New Zealand. While chirping is considered charming by some, they can be pests in seedling crops and invade homes in autumn seeking warmth.
- Conservation Status
- Introduced
- Human Risk
- harmless
- Handling Note
- introduced cricket, nocturnal singer leave undisturbed
- Conservation Note
- Introduced cricket; common urban pest not subject to conservation assessment.
- Te Ao Māori
- As an introduced species, the Black Field Cricket has no specific place in traditional Māori mythology. Unlike the native cicada or wētā. However, the sound of insects at night is a familiar part of the New Zealand soundscape. The name Māhanga (twin) may refer to their paired wings or their tendency to appear in pairs. In the modern context, they are viewed with a mixture of nostalgia for summer nights and mild irritation when their concert moves indoors.
Night defines its song. The black field cricket is the rock star of the garden. Albeit one who insists on performing exclusively at 3am. Male black field crickets produce their signature chirp by rubbing their wings together. A process called stridulation that sounds remarkably like a tiny violin played with enthusiastic incompetence. It is a love song designed to carry across the dark lawn. To the human ear, it sounds like a persistent mechanical fault.
Physically, they are robust, jet-black insects with long antennae and powerful hind legs. Built for leaping away from danger with impressive speed. They are omnivorous scavengers. Happy to munch on seedlings, decaying plant matter or the occasional dead insect. While they can damage young crops, they are also part of the food web. Feeding birds and spiders who appreciate a high-protein midnight snack.
In autumn, as temperatures drop, crickets develop a sudden desire for indoor living. Squeezing through gaps in door frames to establish winter quarters in a warm hallway. They are harmless to humans. No biting, no stinging. But their sheer numbers and relentless singing can try the patience of even the most nature-loving resident.
They are the uninvited housemates who pay no rent but provide a constant, chirping soundtrack to insomnia.
That is the black field cricket. Loud, nocturnal, and everywhere. It carries on. No one told it otherwise.