Ok, I got one for you Jim - my about-to-open Catt is (I hope) C. gaskelliana X coerulea2. As hand-written on the tag from Rafael's so it's most likely one of their own crosses.
This would mean it is a cross of two species, right? C. gaskelliana and C. coerulea but what's with the 2 ? Is there more than one species called coerulea? I know it means blue so guess that's a possibility. Or maybe Rafael had several plants of C. coerulea and wanted to keep track of which plant was the parent?