It isn't P. lysizona or Eusemocosma pruinose, the two common yellow headed ones. I'll compare it with P. impletella specimens (usually from high altitude) It's such a clear photo!
I can't precisely match it to ANIC P. iphigenes specimens but it is very close and the species pattern is a little variable, Fresher specimens have a light yellow head. All ANIC specimens are from over 1000m, from Brindabellas across Snowies to Victorian Alps. I think this specimen is best regarded as a lower altitude variant of P. iphigenes.