I have both litoralis and inconspicua and they look identical to me. (Maybe my plants are - haha) I guess under serious investigation they have enough differences to qualify for their own names. Boy are they awesome. They bloom all the time and the buds are so cute and sweet all Ron Burgundy and rose. They have this funny fragrance that is 90% kind of heady sweet perfume and 10% buttery caramel. I kind of like it the way so many Hoyas give you a bizarre twist like that. Food and perfume (and maybe a bit of moss and spice and cleaning supplies) in the same noseful.
I have a lot of buds on plants that haven't bloomed yet for me, so hopefully May will be a spectacular month.