louse vs midge

louse

noun
  • A small parasitic wingless insect of the order Psocodea. 

verb
  • To remove lice from; to delouse. 

midge

noun
  • any of various small two-winged flies, for example, from the family Chironomidae or non-biting midges, the family Chaoboridae or phantom midges, and the family Ceratopogonidae or biting midges, all belonging to the order Diptera 

  • any bait or lure designed to resemble a midge 

How often have the words louse and midge occurred in a corpus of books? (source: Google Ngram Viewer )