| 单词 | pupa stage |
| 释义 | > as lemmaspupa stage (Chiefly in sense 1a.) General attributive, as pupa form, pupa stage, pupa state, etc. ΘΚΠ the world > animals > invertebrates > phylum Arthropoda > class Insecta > eggs or young > [noun] > young or development of young > pupa or chrysalis > pupa state pupa state1770 1770Pupa state [see sense 1a]. 1787 G. Adams Ess. Microscope v. 201 As the change into the pupa form approaches, the body is observed often to extend and contract itself. 1789 G. White Let. in Nat. Hist. Selborne 252 All [the crickets] that ever I have seen at that season [sc. March] were in their pupa state. 1826 W. Kirby & W. Spence Introd. Entomol. IV. xxxviii. 47 I have carefully examined the pupa-skin of most of the genera of Libellulina. 1862 All Year Round 13 Sept. 8 It assumes the pupa form, and is enclosed in a hard case, remaining motionless and to all appearance inanimate. 1875 Amer. Naturalist 9 237 In this pupa stage, in certain transparent forms observed by Müller, the intestine of the embryo Holothurian could be observed twisted on itself. a1933 J. A. Thomson Biol. for Everyman (1934) I. xiii. 336 With the pupa-husk the great change or metamorphosis occurs. 1960 D. C. Braungart & R. Buddeke Introd. Animal Biol. (ed. 5) xii. 190 The larva then spins a delicate cocoon about itself and enters the pupa stage. 2007 E. R. Eaton & K. Kaufman Kaufman Field Guide Insects N. Amer. Introd. 9 Insects can tolerate heat, cold, drought, and food scarcity better in the egg, larva, or pupa stage. < as lemmas |
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