As a reference, I have attached info on Y. confusa and Y. watsoni from Pisuth's book. The subspecies watsoni which is found in Chiangmai has very small ocelli on the HW, is the size vairable?
Dr Seow, in Pisuth's book, he mentioned that 'this species has been revised and raised up from subspecies of intermedia to a species', so should it be Chersonesia rahrioides instead of Chersonesia intermedia rahrioides?