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Animalia >Arthropoda >Insecta >Lepidoptera >Papilionidae >Byasa >

In insects that go through complete metamorphosis, body form changes dramatically from a larval worm, to a pupa, and to an adult.

I reared a lava of the butterfly Atrophaneura alcinous in the laboratory and filmed pupation from pre-pupal to pupal stage, color changes of pupa, and eclosion.
The pupal color becomes blackish as synthesis and deposition of pigments progress. Later the pupal color becomes lighter as a space is formed between the body and the pupal casing.
Upon eclosion, defecation inside of the pupal casing was observed.
Some parts of the picture are shown at high speed to show the changes clearly. (translated by Asoh)

(Data No.momo060920ba01b)

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