Practically all species have some variations in the size of the ocelli.
Despite what Pisuth stated, there are dsf of Y. watsoni.
Y. watsoni watsoni was described by Moore , type location Burma (Myanmar).
From Moore's book.
Fig 4 wsf.
Fig 4a, b, c, dsf male & female.
https://archive.org/stream/lepidopte.../n188/mode/1up
Pisuth's image looks like dsf with its small ocelli & strong fasciae (bandings).
TL Seow: Cheers.