More fly IDs from my field in Kent

[SteveF48]

I do most of my photography in the field my wife rents for her horse and pony. Virtually every day I see something new. I'm turning into something an insect twitcher. So far I've seen about 100 different insects and spiders in and around the hedge at the north edge of the field. It's only about 50 metres long.
Here are yesterday and this morning's flies for ID.
This small creature was seen on a stinging nettle leaf, I estimate it's about 5mm long.

I think that these next two images are of the same species, though probably not the same flies - they were taken a day apart. I know some animals take a long time to mate, but 24 hours? They are probably around 8-10mm long.


I think this fly is amazing, it's about the same size as the previous ones and was close to them on the same hosepipe. That doesn't really help does it? I don't think that hosepipe is a recognised wildlife habitat is it?

Finally I think that this hoverfly is a Helophilus, possibly helophilus trivittatus, but can anyone confirm that please?

[oxycera]

#1 Syritta pipiens
#2 Sarcophaga sp.
#3 Dung Fly (I think, off the top my head)
#4 Helophilus (would need time to check it)

[Laurence Clemons]

Yes, number 3 is the Yellow Dung Fly Scathophaga stercoraria.