pupa (n.)youdaoicibaDictYouDict[pupa 词源字典]
"post-larval stage of an insect," 1773, special use by Linnæus (1758) of Latin pupa "girl, doll, puppet" (see pupil (n.1)) on notion of "undeveloped creature." Related: Pupal; pupiform.[pupa etymology, pupa origin, 英语词源]