I think it is Bc Kosh Wallace (not Wallis).
I went to a big store and got one in a bag. I wanted to get the Bl Yellow Bird [which is almost like a primary hybrid, I prefer to get species], but then I decided for the Bc KW, which seems to be a very complex hybrid. But the one I got had buds and seems to be a lot more vigorous and fast growing than the Bl.Y.B. I wanted to get both but i need to watch my spending and my space available. Maybe the Bc Kosh Wallace needs less light and blooms smaller than the other one. What is your experience? Also I would like to find out the complete genealogy of teh Cattleya Caudebec parent that seems a very complex hybrid. I can go back a couple of steps but would like to find all the way to the parent species.