Fear the mitey
I grow several different types of elephant ears, Colocasia mainly. Some of them have a little problem with spider mites, and some don't. Our summer has been so dry for the most part, the mites have had it easy this year (they like low humidity, which is why they thrive indoors in winter in cold climates). This one variety of 'Pink China' Colocasia is especially bad:
That's not some fantastic new variegation on the leaves, it's damage from those little pests! The leaves should be solid green. Yikes.