This butterfly appears to be a Clipper (Parthenos sylvia), a species commonly found in tropical forests of South and Southeast Asia. The Clipper butterfly is known for its striking wing patterns, featuring a mix of brown, white, and black markings with a slightly scalloped edge. The translucent white patches on its wings, along with the symmetrical patterns, are distinctive characteristics of this species. Clipper butterflies are fast and erratic flyers, often seen in gardens and forests where they feed on nectar from flowering plants. Let me know if you’d like more details!