Fly

Flies are insects of the order Musca domestica, known to live throughout North America, from New California to the Commonwealth.

Gameplay
After the war, flies feed on the nutrients of rotting bodies, such as those of ghouls.

Appearances
Flies appear in Fallout 2, Fallout: New Vegas, Fallout 4 and Fallout 76. They are also mentioned in Fallout 3.