On the button
This image began as a closeup of a bachelor’s button, with selective focus on a few parts of the flower. Then a tiny aphid-like insect crawled onto an anther:
As I watched, it crawled up to the top of the anther, perhaps to feed on the pollen. My shutter speed was too slow to catch those poses. Then I noticed two more, perching on other flower parts:
It’s the same flower, with focus moved a few millimeters behind the focal point in first image. That may give you an idea of how little depth of field there is at this magnification (around 2x or so) – the flower parts in the first image are hardly visible.
Now I’ll have to try to identify these tiny insects…