deer fly

noun

1. any of several tabanid flies of the genus Chrysops, the female of which is a vector of tularemia in deer, livestock, and humans.

Word History and Origins

Origin of deer fly¹

An Americanism dating back to 1850–55

Example Sentences

Health authorities say it’s believed the illness was the result of a bite from an infected deer fly.

From Washington Times

A notable and occasional exception is one species of deer fly, Chrysops discalis, which can spread tularemia, also known as rabbit fever.

From New York Times

It can also be transmitted to humans through deer fly and tick bites and by eating or drinking contaminated food or water.

From Washington Times

There was deer fly season, mosquito season, greenhead fly season.

From Washington Times

Thus the beavers grow more scarce, and deer fly farther back; yet after I have reserved skins for my mantle and the clothing of my wife, I will exchange the rest.

From Project Gutenberg