#psocopterous_insect  small soft-bodied insect with chewing mouthparts and either no wings or two pairs
  supertype:  #insect  small air-breathing arthropod
  member of:  #order_Psocoptera
  subtype:  #psocid  small winged insect living on the bark and leaves of trees and feeding on e.g. fungi and decaying plant matter
     subtype:  #barklouse__bark_louse  any of several insects living on the bark of plants
  subtype:  #booklouse__Liposcelis_divinatorius  minute wingless psocopterous insects injurious to books and papers
     subtype:  #common_booklouse__Trogium_pulsatorium  a variety of booklouse

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