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from The Century Dictionary and Cyclopedia

  • In Latreille's classification of insects, one of two prime divisions of Orthoptera (the other being Saltatoria), distinguished by their mode of progression, and by having tubular instead of vesicular tracheæ.
  • A suborder of Orthoptera, containing only the Blattidæ or cockroaches; the Dictyoptera of Leach.


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