any of the minute, black gnats of the dipterous family Simuliidae, having aquatic larvae.
- Also called buffalo gnat.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use black fly in a sentence
There was some kind of an animal inside my shirt, and one that made a mosquito, black-fly, or flea seem tame.Tales of lonely trails | Zane Grey
But each bite of the black fly makes a separate and distinct boil, that will not heal and be well in two months.Woodcraft and Camping | George Washington Sears (Nessmuk)
Not one of us had succeeded in seeing the big black fly perching on the dome of the mason bee.The Life of the Fly | J. Henri Fabre
The former has, therefore, to play second fiddle in Ceylon, where he is usually known to Europeans as the black fly-catcher.Jungle Folk | Douglas Dewar
The wand of Herrmann never wrought such a wonder as did this magic touch of the little black fly upon the oak leaf.Eye Spy | William Hamilton Gibson
British Dictionary definitions for blackfly (1 of 2)
a black aphid, Aphis fabae, that infests beans, sugar beet, and other plants: Also called: bean aphid
British Dictionary definitions for black fly (2 of 2)
any small blackish stout-bodied dipterous fly of the family Simuliidae, which sucks the blood of man, mammals, and birds: See also buffalo gnat
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012