Saunders' case moth or the large bagworm (Metura elongatus) is a moth of the Psychidae family. It is known from the eastern half of Australia, including Tasmania.
The wingspan is about 30 mm for males. Adult males have black wings, an orange hairy head and a black and orange banded abdomen. Female adults have no wings and remain in the larval case. They are white with a brown head and reach a length of about 30 mm.