As best I recall, E.B.Ford in his classic "Butterflies" distinguished between spring Speckled Woods that had overwintered as pupae from those that had overwintered as larvae....not seeing anything to make it an ab. I feel that it is at the brighter end of normal variation for a spring brood female.
I think he used some terminology as Gen1, part 1 and Gen 1 part 2.
Sadly my copy of "Ford" is so tatty (but well loved) that I dare not attempt to open a page to check.
Jack