blowfly

US /ˈbloʊ.flaɪ/
UK /ˈbloʊ.flaɪ/
"blowfly" picture
1.

a large, hairy fly, typically metallic blue or green, that lays its eggs on meat or carrion.

:
The picnic was ruined by swarms of blowflies.
A single blowfly buzzed annoyingly around the room.