You are welcome, Nelson.
I just wanted to confirm my id (E. hypermnestra) with some one who carried out extensive collection and studied butterflies on SEA islands, because Vane-Wright & R. de Jong (2003) have not listed this species in their publication, and D' Abrera (1985) mentioned the distribution of E. hypermnestra throughout the Oriental region except Philippines and Sulawesi subregion. I carefully look at your photo it does'n't fit into any species listed by Vane-Wright & R. de Jong as well as D' Abrera. it has the typical features (wing shape, venation, underside colour and pattern) of E. hypermnestra. May be this species migrated to Sulawesi after the Project Wallace to Dumoga-Bone National Park.
Teo T P