Do your cats eat bugs?

Our Boots does not eat bugs but does take great pleasure in killing them. He can not stand having a house fly or moth, in the house. He leaps at the windows, climbing from sill to sill, in search of the buzzz fly or bee, or fluttering moth.
Needless to say in his quest to hunt down and kill bugs he has knocked down my mom's plants and nick-nacks from window sills and the china cupboards. Once he catches the insect he plays his cat and mouse game with them until they die from repeatedly getting jumped on.