MORPHOLOGY
External characteristics
Male
Forewing length (mm): > 40 (Yata and Morishita, 1979). Wingspan (mm): 70 - 75 (DBpedia, n.d.).
Forewings: The forewing apex is strongly produced and the cilia is white. The underside wing surface is heavily dusted with black toward the base and the veins are darkened. The folds are blackened in the cells. The plume scale has a broad neck and a narrower bottom (Yata and Morishita, 1979). Hindwings The hindwing underside has a outer series of red coloured spots (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; Yata and Morishita, 1979).
Subspecies and variation
Four subspecies are described (Pequin, 2021).