fruit fly

US /ˈfruːt flaɪ/
UK /ˈfruːt flaɪ/
"fruit fly" picture
1.

a small fly, especially Drosophila melanogaster, which feeds on decaying fruit and is used extensively in genetic research.

:
The rotting bananas attracted a swarm of fruit flies.
Scientists often use fruit flies for genetic experiments due to their short life cycle.