I've been surfing the net to see if there were more colocasias to get my hands on. I've seen Hilo Beauty show up both as colocasia and alocasia.
Would anyone know which one it really is?
My experience leads me to the conclusion the the "Hilo Beauty" is a Colocasia, not an Alocasia. Morphologically, in every respect that I have examined, this plant matches Colocasia far more than it does Alocasia. The only other possibility I can imagine is that it is a Caladium, or is a possible hybrid between Caladium and Colocasia. If I could see what the inflorescence is like, I could be much more definitive.
Here is a link that might be useful: Aroidia Research