Orchids: Miltonopsis? ID assistance requested, 1 by drdon

drdon wrote:
This was a rat-eaten specimen given to me by my local retail nurseryman. It was in my greenhouse no more than two weeks and put on this spike. I am told I'm giving it too much light so as soon as these flowers are spent I'll shift it to an area of the greenhouse with a little more shade. I like the white flowers, and am sure it's a rather common hybrid, but no tag, no name given. I would certainly like to know the name of it if someone knows it. Miltonopsis mysteriosa sounds good, but a true name would be more interesting.

Thanks for any help.

Don