I do not know of any factory or after market bug screens.
I made one for my 11 terrain that goes in front of the rad using the same materials that you would use to make a house window screen.
It does take a bit of work to get it in front of the rad.
I found it best to remove the front bumper cover.
Dealer was kind enough to supply info on removal.
I did not to put a screen over top of the grill just so that it would not rub and mark up the grill.