SENNA ALATA & MOTTLED EMIGRANT

I planted the Senna alata (synonym: Cassia alata; Family: Fabaceae / Leguminosae) at the same time when I planted the Calotropis gigantea. Imagine my joy when I saw some of the badly eaten leaves because this is a sign of the presence of the caterpillars.


True enough, I found lots and lots of big and small caterpillars of the Mottled Emigrant on the host plants planted all over the place. This is another success story, so what host plants should I add next?