What is the world's largest type of butterfly?

The world's largest butterfly is the Queen Alexandra's Birdwing (Ornithoptera alexandrae), which is native to Papua New Guinea. It has a wingspan of up to 30 cm (12 in) and can weigh up to 12 grams (0.4 oz). The male and female of the species look quite different, with the male having brightly colored wings and the female having more muted colors.

Unfortunately, this magnificent butterfly is endangered due to habitat destruction and over-collection by collectors. In fact, it is one of the most endangered butterflies in the world, and efforts are being made to protect its remaining habitat and ensure its survival.