Chalcidodoma pluto is an immense bee recently rediscovered in Indonesia. I think there was an article on in Bee World within the last 3 or 4 years. My Bee World's are packed pending a move to a new building here. I can not recall the island from which the bee came, but Ambon area comes to mind. Also, if memory serves it is a megachilid. Cheers, Peter.