In April 2019, an image supposedly showing a Japanese Giant Emperor Moth was passed around social media: Although this photograph has often been presented as if it documented a large species of ...

The giant wood moth’s large thorax — about the width of a finger — is what helps make it the heaviest moth, Dr. Shockley said. A female can carry up to 20,000 eggs in her abdomen.

Female Giant Wood Moths have a wingspan of about 25 centimetres (9.8 inches) and can weigh up to 30g (just over an ounce), making them the heaviest moth in the world as well as one of the biggest ...