belongs to family Nymphalidae, subfamily Danainae, milkweed butterflies
distribution: Sumatra, Kalimantan, Java, Bali, Nusa Tenggara, Sulawesi, also in India, Sri Lanka, and Myanmar.
host plants: Apocynaceae (Asclepias, Pergularia, Raphistemma)
This species is usually found in areas near forests.