ant vs harvestman

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. 

harvestman

noun
  • An order of terrestrial, non-venomous arachnids with often very long legs: Opiliones. 

  • A field-worker who works to gather in the harvest. 

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