ant vs aphid

ant

noun
  • Any of various insects in the family Formicidae in the order Hymenoptera, typically living in large colonies composed almost entirely of flightless females. 

  • A Web spider. 

verb
  • To rub insects, especially ants, on one's body, perhaps to control parasites or clean feathers. 

aphid

noun
  • Sapsucking pest insect of the superfamily Aphidoidea; an aphidian. 

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