Nice colouring. Do the flowers last a long time? The texture seems to suggest that they would. (I thought that boxalli had spots on the dorsal, obviously again I was incorrectly informed)
This flower and the first posted photo looks very much like
my villosum v. boxalii f atratum to me. I don't know where the thread with the photo is located, but a comparison might shed some light on the ID. I never have luck locating an old thread.