DCHP-1 Online
bulldog 
n. any one of several species of horsefly, especially Chrysops.
See also: bulldog fly
- 1792 (1934) A kind of fly about the size of a bee and not much unlike them in colour but flat and resemble the gad fly of England in this country called bull dogs are the most numerous and troublesome I ever knew them and their bite is as sudden as the sting of a bee.
- 1892 The large bull-dogs . . . drove the horses about to madness.
- 1961 But in summer, we do have black flies and bulldogs (horse-flies) which get into our clothes and take bites the size of a pinhead.
- 1792 (1934) A kind of fly about the size of a bee and not much unlike them in colour but flat and resemble the gad fly of England in this country called bull dogs are the most numerous and troublesome I ever knew them and their bite is as sudden as the sting of a bee.