bloodsucker vs cleg

bloodsucker

noun
  • Any parasite. 

  • An animal that drinks the blood of others, especially by sucking blood through a puncture wound; a hemovore. 

  • The changeable lizard (Calotes versicolor). 

  • One who attempts to take as much from others as possible; a leech. 

  • A vampire. 

cleg

noun
  • A blood-sucking fly of the family Tabanidae; a gadfly, a horsefly. 

  • A light breeze. 

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