Not about beetles, but earlier this year, I got this extremely comprehensive book from Japan about the natural history of Birdwing butterflies, by Hirotaka Matsuka - http://kawamo.co.jp/roppon-ashi/sub177e.htm
I've never before seen such a complete treatment of the subject - the amount of work involved in producing it must have been incredible. It even includes photos of the caterpillars and chrysalises.