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Unformatted text preview: 5 The outline of the butterflys external structures can now be seen in the pupa. The pupa will stay dormant over winter; then the cuticle will split and the butterfly will emerge Caterpillars head . The jaws are outside the mouth and move sideways, biting off chunks of leaf jaw The prolegs and claspers have a series of tiny hooks which enable the caterpillar to grip the leaf. The prolegs are not present in the butterfly. The 3 pairs of true legs persist (in a different form) in the butterfly Prolegs True legs silk girdle Pupa legs and antenna wing cuticle splitting eye D.G. Mackean...
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- Fall '11