Artificial intelligent assistant

pupa-case

ˈpupa-case
  [f. prec. + case n.2 2 b.]
  The horny case or sheath of a pupa or chrysalis.

1826 Kirby & Sp. Entomol. III. xxxi. 241 The wings..remain attached to the puparium or pupa-case. 1841 T. R. Jones Anim. Kingd. xv. 300 The imprisoned dragon-fly splits its pupa-case along the back. 1895 Miall Aquatic Insects 176 The pupa-cases are fixed to the rocks in clusters, which resemble small wasps' nests.

Oxford English Dictionary

yu7NTAkq2jTfdvEzudIdQgChiKuccveC 769306596445f15208efa963a7ff058f