Yeah I've seen them too. Not in my bow wood because I debark after I harvest, but I have seen them in my fire wood. I found one about a month ago I should have taken a picture of, it was really big and fat, I would say easily it was 3/8" in diameter and was 3" long. He had obviuosly been feasting for a while. I don't recall it being a flathead though. It was a borer of some type and needless to say he cut a large swath in that osage log. Danny