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World's Heaviest Insect Makes Massive Comeback as 11,000 Giant Wētāpunga Return to the Wild
M
Moneycontrol•08-10-2026, 17:34
World's Heaviest Insect Makes Massive Comeback as 11,000 Giant Wētāpunga Return to the Wild
- •The wētāpunga, known as the world's heaviest insect weighing up to 71 grams, was nearly driven to extinction by habitat loss and introduced predators by the 1990s.
- •A successful captive-breeding programme led by Butterfly Creek and Auckland Zoo helped scale up the production of the giant insects for conservation efforts.
- •Conservationists have released over 11,000 wētāpunga across eight predator-free islands and two fenced mainland sanctuaries through 45 translocations.
- •Researchers have confirmed that the released insects are successfully reproducing naturally in the wild, establishing multiple generations on islands like Motuora and Tiritiri Matangi.
- •Scientists hope the successful conservation techniques used for the wētāpunga can be applied to save other threatened New Zealand insect species.
Key Questions Answered
The wētāpunga, also known as the Little Barrier giant wētā, is the world's heaviest insect and can weigh up to 71 grams, which is roughly the weight of a small bird.
The giant insect was pushed towards extinction and restricted solely to Little Barrier Island by the 1990s due to habitat loss and introduced predators like rats, stoats, and cats.
Conservationists established captive-breeding programmes at Butterfly Creek and Auckland Zoo, raising young nymphs on fresh foliage, leaf litter, and additional protein. They subsequently released over 11,000 wētāpunga through 45 translocations into eight predator-free islands and two fenced mainland sanctuaries.
