In May 2018, I found several of these caterpillars on a Candle Bush (Senna alata). They were being guarded by an army of red Weaver Ant (Oecophylla smaragdina). Subsequently, I found more of these caterpillars on the Sarsaparilla Vine (Smilax setosa) nearby. In the Butterfly Circle website, both Candle Bush and Sarsaparilla Vine were not listed as one of the host plants. I also located at last 2 pupae among the vegetation.

Online Reference: | Butterfly Circle |