Here in Southern California, my suburban garden has been severely stunted by this beetle in the past. I like that idea of the bone sauce. I've read that those pheromone traps don't work when they're full of bugs. Maybe the dead bug compost wouldn't work exactly like the bone sauce. However, if you treat the fresh dead bugs like the animal bones in Sepp's recipe or just spread them around your plants, perhaps that would have a similar effect. I'm intrigued by the idea of eating them. I also don't have chickens or ducks, but my friend's stepfather does. Maybe you can pander off your surplus of dead bugs.