deerfly
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deer·fly
or deer fly (dîr′flī′)n.
Any of various biting tabanid flies of the genus Chrysops, the females of which feed on the blood of mammals. Deerflies are smaller than horseflies and usually have a dark band on the wings.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
deerfly
(ˈdɪəˌflaɪ)n, pl -flies
(Animals) a fly of the order Diptera and the genus Chrysops
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014