Landcare Research - Manaaki Whenua

Landcare-Research -Manaaki Whenua

Wëtä weighing 71 grams!

Giant Wëtä. Image - M Coleman

Giant Wëtä. Image - M Coleman

A female of the Little Barrier Island giant wëtä, Deinacrida heteracantha, has been weighed as 71 grams: the heaviest weight reliably reported for any insect in the world.
  • She had been reared in captivity and didn't lay her eggs when they were ready; instead the eggs were retained in her abdomen.
  • The average weight of an adult without eggs is about 19 grams, and the normal weight of a female with eggs is about 43 grams.
  • Some beetles are more likely to be heavier, like the goliath beetle, but they have not been reliably weighed.