MORPHOLOGY
External characteristics
Male
Wingspan (mm): 55 - 62 (DBpedia, n.d.).
Forewings: The forewing underside is heavily dusted with grey coloured scale towards the base. The plume scale is elongated, with a broad heart-shaped disc (Yata and Morishita, 1979). Hindwings The hindwing underside has the basal half heavily powdered with dusky yellow scales (Yata and Morishita, 1979).
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 upper side wing surface has a yellowish cream ground-colour. The underside wing surface has an outer series of oval spots and the cell and spot on the hindwing are mostly white coloured. The forewing termen is rounder than in males (Yata and Morishita, 1979).
Subspecies and variation
Five subspecies are described. Each subspecies inhabits separate mountain areas, and they do not overlap (Pequin, 2021). No subspecies (Yata and Morishita, 1979).