botfly

US /ˈbɑːt.flaɪ/
UK /ˈbɑːt.flaɪ/
"botfly" picture
1.

a large, hairy fly, the larvae of which are parasites of mammals, including humans, and typically develop in the skin or nasal passages.

:
The veterinarian identified the lump on the dog as a botfly larva.
Hikers in tropical regions should be aware of the risk of botfly infestations.