Dangerous sports club for flies.....

The seed heads for the Aquilegia are still in the garden. We are rubbish gardeners but it seems good for the insects at least. The seed heads are covered in spiders ( which I blipped a few days ago) Today I went to look for more arachnid action and saw this fly showing off in a big way right by the myriad of webs. Do you think there is a 'dangerous sports club" for flies??