According to https://en.wikipedia.org/wiki/Common_green_bottle_fly https://en.wikipedia.org/wiki/Common_green_bottle_fly Their complete lifecycle typically ran

According to https://en.wikipedia.org/wiki/Common_green_bottle_fly https://en.wikipedia.org/wiki/Common_green_bottle_fly Their complete lifecycle typically ranges from 2 to 3 weeks... So they have taken one third to one half of that. So swat?