A traditional classification in zoology, but is invalid. The correct classification is Neoptera. Although Exopterygota is still used by some as a subdivision within the Neoptera, for the moment ITIS is not implementing this.

Traditionally, Exopterygota was a division (17 orders) of the class Insecta characterized by incomplete metamorphosis and resemblance of the juvenile and the adult.


  • Encyclopedia Britannica Micropedia ©1984
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