insect vs lost soul

insect

noun
  • A contemptible or powerless person. 

  • An arthropod (in the Insecta class) characterized by six legs, up to four wings, and a chitinous exoskeleton. 

  • Any small arthropod similar to an insect, including spiders, centipedes, millipedes, etc. 

lost soul

noun
  • One who is forlorn, who lacks direction, purpose, or motivation in life. 

  • A soul that is destined to go to hell; a person possessing such a soul. 

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