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the development of a nymph into the imago, which in many respects resembles the former; characteristic of more primitive insect orders, such as Heteroptera (true bugs), Orthoptera (locusts, grasshoppers), and Blatterria (roaches).
Synonym(s): heterometabolous metamorphosis
A type of metamorphosis in which the pupal stage is lacking and the adult insect has the same general body plan as the immature form. Also called hemimetabolism.