puparium
/pjuːˈpeərɪəm/noun
(pl. puparia /-rɪə/)
1- Entomology the hardened last larval skin which encloses the pupa in some insects, especially higher diptera【昆】蛹壳。
1.1
- a pupa enclosed in such a skin（裹在蛹壳里的）围蛹。
词源
early 19th cent.: modern Latin, from PUPA, on the pattern of words such as herbarium.