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Puparium is the biological technical term for the hardened skin of the last larva of an insect , often this term is also used for the pupa shell. The term comes from the Latin pupa . This means doll in German . The term puparium was demonstrably used for the first time in 1815.

Web link

  • Explanation of the term puparium at merriam.webster.com (English), accessed on March 30, 2013