In this particular case, I do not know. With some cases of mimicry, the mimic is a parasite of some sort on the model, and so the two will commonly be found together; for example certain species of Bombyliidae that use bees as hosts, or the bombyliid Systropus that associates with Ammophila wasps (but not parasitic on them, it apparently attacks Limacodid caterpillars). In this case, the two species have no such life-history link. They do, however, seem to share a taste for overripe bananas....