This was taken about a year ago in my back garden when we had had a few warm weeks.
I didn't realise it, but if you look closely at a dandelion flower you will see two types of insects, an ultra small insect which I believe is called a "thrip" and a tiny spider who preys on these thrips.
These spiders will stay absolutely still for many minutes until the thrip happens to go too close and then WHAM!
In a fraction of a second the spider grabs it!
This was one of about 100 I took and about the only one which is reasonable.
I used a Canon EOS 350d with the supplied lens and a +10 Dioptre close up lens.
You can just see one of the little insects it preys on at the right hand side about a quarter of the way up.
The little dots aren't blemishes on the pic but tiny grains of pollen.