Which parent creates this in Cattleya hybrids?

[Roberta]

Your #2 still doesn't look even close to what it is supposed to be. The shape of the lip, the red lines in the throat, the yellow on the lipI still think it is mis-labeled. I don't know what it is, but don't see any way that it could be (glauca x digbyana) x digbyana. Not just the color but the form makes it highly unlikely.