Plants covered in aphids! Not as daft as it sounds as both adults and larvae feed on aphids and don't visit flowers per say as they are not interested in nectar or pollen.

To be honest, I wish I knew the answer as I have still a small infestation of red spider mite on my Sollya heterophylla.
We have found quite a few inside the reed like stems of the shrimp plant as we cut back last years growth this weekend.
I'll be watching for constructive answers with interest as well.

Oh funny!!!!! ha ha ha. Actually I saw one today with a couple of bees

Meanie perhaps when it gets warmer we will see some!! I know you can buy them if you have a greenhouse. But I don't have one of those!

as fractal said only their food will attract them. they are carnivores and feed on all members of the aphid family.

i find loads on my anthemis punctata....

Thanks Sandra I will add them to my list

globe artichokes get lots of aphids and they dont seam to hurt the plant.