louse vs minibeast

louse

noun

  • A small parasitic wingless insect of the order Psocodea. 

verb

  • To remove lice from; to delouse. 

minibeast

noun

  • A little beast or creature; an insect/bug etc. 

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