Whisperer is correct. They are difficult to tell apart without dissecting a flower and there are some hybrids out there as well some of them unregistered. I have an unregistered hybrid of elegans and dodsonii that looks a bit like this. If it is a species it might be guttulata, but I'm not going to stake my life on that.
I've got another plant blooming with identical flowers. the tag says "Columbia Species"
Here is a better shot The background color is a yellow. The spots are red/burgundy
Last edited by Polarizeme; 03-06-2014 at 01:10 AM..
You might want to contact an orchid taxonomist like James D Ackerman at the University of Puerto Rico to ask if there is a key for identifying the various species of Restrepia.