Well, I've learned something today. Denis Wilson commented on my last post that I had photographed ladybird larvae, and he's right. What I thought were different insects turns out to be mostly different stages of the ladybird cycle. This is a link to more information about the stages of the Common Spotted Ladybird Harmonia conformis that is on my shrub. And here is another photo as well as one of the 'thrips' or 'aphids' that are covering the shrub, mostly underneath the leaves. Now I have to find out exactly what they are - I've emailed photos to an entomologist friend for help.