Ariadne merlone, commonly known as the common sailor, is a butterfly belonging to the Nymphalidae family. With a wingspan of about 50 to 65 millimeters, this species is recognized for its striking appearance. The forewings are predominantly orange-brown with dark black borders and distinct black spots, creating a bold contrast. The hindwings are lighter, often featuring a pale orange or yellowish hue with black margins, enhancing its visual appeal.

This butterfly is primarily found in tropical and subtropical regions of Asia, including parts of India and Southeast Asia. It typically inhabits forested areas, grasslands, and open woodlands, where it can be seen basking on leaves or visiting flowers for nectar.

The life cycle of Ariadne merlone includes distinct egg, larval, and pupal stages. The caterpillars are often found feeding on host plants from the families Passifloraceae and Malvaceae. They exhibit cryptic coloration, blending seamlessly with their surroundings to evade predators.