Class
Insecta (Insects)
Polyphylla crinita. Photo: (c) Ken-ichi Ueda, some rights reserved (CC BY)
Insects or Insecta (from Latin insectum, a calque of Greek ἔντομον , “cut into sections”) are by far the largest group of hexapod invertebrates within the arthropod phylum. Definitions and circumscriptions vary; in one approach insects comprise a class within the Phylum Arthropoda. As the term is used here, it is synonymous with Ectognatha.
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