blind-fly vs horsefly

blind-fly

noun
  • Any of several medium-sized blood-sucking flies, of the family Tabanidae, usually species in the genus Haematopota. 

  • The game of blind man's buff 

horsefly

noun
  • Any of several medium to large flies, of the family Tabanidae, that suck the blood of mammals (not to be confused with Stomoxys calcitrans, the stable fly, or dog fly). 

How often have the words blind-fly and horsefly occurred in a corpus of books? (source: Google Ngram Viewer )