‘The future is bright’: breeding programme brings world’s heaviest insect back from the brink - The Guardian
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The population of New Zealand’s endemic wētāpunga – believed to be the world’s heaviest insect – is officially “increasing” thanks to a groundbreaking breeding programme that has overseen the release of 11,000 insects into the wild. “The future of wētāpunga is looking bright,” said Dr Chris Green, an honorary researcher at the department of conservation, who documented the success of the project for the New Zealand Journal of Zoology. Green co-authored a report released on 2 October that outlines the success of the breeding programme. “Eleven thousand individuals for release is extraordinary and outstanding.”A female wētāpunga can weigh as much as a mouse. Its body can grow up to 10cm long (nearly 4in) and its leg span can be as wide as 20cm. It is the largest of 70 wētā species and was once found across parts of the North Island before predation from introduced species and habitat loss contributed to their decline. By the 1990s, they were considered “endangered” and are now presumed extinct in the wild on New Zealand’s mainland. The insects reside primarily on a smattering of predator-free islands in Auckland’s Hauraki Gulf and off the coast of Northland.
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