blackfly
black fly
buffalo gnat

One thing I will surely be home in time for: black fly season.

"The black flies start when the leaves come out," he said.

One man had a beard of black flies on his face.

And down to the rocks come the black flies to eat anything they can find.

I was even surprised by the clouds of black flies.

One negative is the prevalence of black flies in the summer.

It is transmitted through the bite of a black fly.

Hundreds of black flies were plastered all over his body.

The air temperature was in the 50's and there were almost no black flies or mosquitoes.

The heat within was more sickening than outside, and black flies covered everything, one's face included.