We got lucky and had a mess of mantises (mantii?) hatch under our row covers in the Spring. We've always had a few of these guys on the property, but this year they were everywhere. They stationed themselves all throughout the garden and have been dutifully chowing down on other bugs all year long. Mantises actually eat pretty much everything they come across—good bugs included—but I think we have enough pests running around to serve as the primary food.