These bugs are only on one plant. It could be because they only like that one plant or because its next to an eggplant and there is walking through space next to it. Either way I need to know if these are helpful or harmful bugs? I don't know how long they've been on there. Over a month ago I saw these on this plant and squished them all till there were no more. Now theya re back. Oddly enough with all my other plants they aren't on any others. Any idea what these guys are?
http://imgur.com/a/HSbVx
http://imgur.com/a/HSbVx