Both parents of this cross are forms of the Pasian HL form of N.truncata...I'm sure you've heard of it.
now im curious as well...do you have a source to cite exo? because i havent seen any information stating that 1) queen/king parents were pasian and 2) they are of highlander origin. all that i DO know about the parents is that they represented a rare possible subspecies of truncata, and the chances of them syncing like this was a very rare event, which enables the immediate persistence of the possible subspecies.