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black fly

any of the minute, black gnats of the dipterous family Simuliidae, having aquatic larvae.
Also called buffalo gnat.
Origin of black fly
First recorded in 1600-10 Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for black fly
Historical Examples
  • The black fly is even a more formidable pest than the mosquito.

    Our Common Insects Alpheus Spring Packard
  • Either the remedy suggested for the black fly is a remedy, or it isn't.

    The Lure of the Pen

    Flora Klickmann
  • Descending the Bartlett Mountain, we made our first acquaintance with the renowned 'black fly' of the Adirondacs.

  • If the trip is to extend into a black fly or mosquito region, protection against the insects should be provided.

    Packing and Portaging Dillon Wallace
  • The bite of the black fly is often severe, the creature leaving a large clot of blood to mark the scene of its surgical triumphs.

    Our Common Insects Alpheus Spring Packard
  • In cloudy weather, unlike the mosquito, the black fly disappears, only flying when the sun shines.

    Our Common Insects Alpheus Spring Packard
  • A black fly ribbed with silver tinsel, black wing with white tips, black hackle, and a yellow head and tail.

  • A black fly, with silver and black hackle, and teal wings mixed with blue peacock neck.

  • A minute black fly, with a roundish body and white wings, (Culex equinus).

    Lachesis Lapponica Carl von Linn
  • 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)
British Dictionary definitions for black fly

black fly

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
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black fly in Medicine

black fly n.
Any of various small dark humpbacked flies of whom the females are aggressive biters and serve as vectors in the transmission of onchocerciasis.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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