One I recently read was Darwin's Dangerous Idea by Daniel C Dennett (1995).
I had a hard time getting through this book. In fact, I've had it for two years and am only about 2/3 of the way through. Probably because I'm such a crappy philosopher, I keep getting way lost in what he's trying to convey.
As an aside, do you know of any field guides/keys to neotropical Scarabaeoidea? I haven't been able to find a comprehensive one.