What I have been trying to figure out, unsuccessfully, is what is going on here.
This is curious. First, there were two or three of the green planthoppers and about a dozen of the black ones on the tree trunk (a natural habitat for such things). But what are the black ones? The only other citations of these black ones I can find list them as "unidentified." And, since these types of insects can secrete a wax from their rears, is the black one attempting to acquire some wax or is this just an accidental position. I once read something about cockroaches stealing wax this way, but can't find that reference right now either. So just an interesting mystery photo for now.
Keith Christenson - Wildlife Biologist