Lithobates fisheri and L.chiricahuensis are not the same species. What was thought to be L.chiricahuensis was actually at least two species (a fact already known beforehand), with L.fisheri along the western Mogollon Rim of Arizona, and L.chiricahuensis in the eastern Mogollon Rim and in the Madrean Sky Islands of southern Arizona into Mexico. L.subaquavocalis may yet be validated as a further species in this complex.
While I would acknowledge that a color aberration might well lack certain species-specific traits, I doubt very much that this is H.wolterstorffi. The missing traits are particular ones for ALL western Chinese members of this species group, but not for the eastern species. At a glance, I can't confirm which of the eastern species this is, but it's not a western one. I would also say that color aberrations of salamanders aren't all that rare, as their nocturnal and often fossorial tendencies along with frequent skin toxins [at least in salamandrids] make bright colors, including abnormal ones, either insignificant or even advantageous for survival. An albino frog is more apt to be lunch than a red newt [that said, I have found albino tadpoles of Pseudacris maculata and an albino Ambystoma krausei, as well as a melanistic Thamnophis sirtalis parietalis].
On the other hand, I am also not prepared to write off the survival of H.wolterstorffi. I've seen mention of an additional locality of this species; many 'missing' amphibians have been rediscovered recently at or near their type localities [including the Atsumi firebellied newt at a new locality]; and Yunnan in the vicinity of Kunming is topographically complex and includes at least three described species of newt in fairly close proximity, one of those being part of a more widespread complex of multiple species. I find it likely that there are both more species with small isolated ranges in the area, as well as more localities for some of those.