Mr Jack writes:
Even more intriguing to me is Mullerian mimicry, where other bad tasting beetles will evolve to look similar to existing ones.
Well, isn't that kinda the same as Batesian? I mean, if you look like a bad tasting bug, you are much less likely to get eaten, even if you don't taste bad. Now, if you do taste bad, yet look completely different, there's no way to tell you taste bad, except after being eaten. So, it's better to look like each other, whether bad tasting or not.