MORPHOLOGY
External characteristics
Male
Wingspan (mm): 55-82 (Pequin, 2021).
Forewings: The forewing underside has a clearly defined discal sub-median patch, a shorter yellow coloured basal patch and a generally white coloured discal spot (Pequin, 2021). Hindwings The hindwing underside has a yellow coloured cell patch (Pequin, 2021).
Female
The females generally have a different underside wing surface than the males, by being darker with broader margins on both wings (D'Abrera, 1982). The forewing termen are slightly rounder in females than in males. Further, the yellow coloured tornal area is wider (Yata and Morishita, 1979).
Subspecies and variation
Twelve subspecies are described (Pequin, 2021).