I don't know about the hybrid, but the folks on ebay I used to buy from are selling digbyana's and here is what they say:
"This orchid is the 'B' in many Blc. orchids, although now it is more accurately called Rhyncholaelia digbyana.
These do well in clay pots, or mounted on cork or grapewood. They like bright morning light and of course like most cattleyas they like to get completely dry between waterings. A mature plant will have large, four- to-six-inch flowers that often are nicely fragrant."
No clue if that is any help, but thought I'd share. Good luck!