This is an enigmatic species in as much as the type location is Singapore.
Holloway states the following features.
1. Satiny white with reflective scales coarse.
2. Fringes narrowly brownish ( Most Arctornis have the fringes grey).
3. Frons reddish & palps tipped ochreous.
4. Legs only faintly spotted. https://www.mothsofborneo.com/part-5...thini_1_73.php