Learn about flies

I've got a female Helina that's keying out confidently to the fratercula/consimilis/vicina couplets in the Fonseca RES key to Muscidae. It's clearly not fratercula, as the hind tibia have no posterodorsals (or scars) and it has only one anteroventral. However, the mid femur have three (slightly postero)ventral near the base, which would seem to rule out consimilis and vicina. I'm therefore at a bit of a loss.

Another one I thought might be easy... will I never learn!   This was on a knapweed in chalk grassland in Bucks on 16/6/21

Any thoughts or pointers please.

Thanks

Two flies that I think should be 'doable' from photos but I need some help please,  both were from damp nutrient poor meadows rich in Dyers Greenweed and a good range of other plants.

Any thoughts welcome

Attached is a photo of a fly taken on 10 June in Trench wood, Worcestershire on Bramble, which we have id'ed to Trixia conspersa. Is that likely to be right? Unfortunately there is no specimen.

Hi, I think that this is a male Argyra maybe diaphona or perplexa? Is it possible to species ID these from photos (at all)?

If so, is it possible to do so with these photos?  Many thanks!

This third brown cranefly was attracted to a moth trap. The photo in (evening) daylight shows its colours more vividly. Is this the same species as I posted previously?

Maybe I'm unfamiliar with this platform but I can't seem to get it to accept and display 4 images, so some will follow as 'replies.

Many thanks again for any comments on these.

I am completely new to looking at Diptera. I'm new to the forum and this is my first post. I am making a start by trying to identify the larger things that visit my garden. This is the third species of Cranefly so far this spring, but by picture matching I can't put a name to this one. I guess the size (15mm from head to wingtip), apparent lack of wing marks, and the generally brown appearance (including a yellowy-brown tint to the wings) must surely narrow down the possibilities considerably.

This photo was sent to me for identifying - can anyone help please?

I think I'm right in putting this pair in Cetema, beyond that I need help. As I understand it the Fennoscandia Frit-flies volume lists four species, three of which have long hairs on the anterior and mid tibiae of the male. I don't see those here which would suggest C. elongata. However, the UK checklist has 6 species in the genera and I don't know whether there is a publicly available key to the genus in the UK.

(Photo only, 11.vii.2020, marshy fields, VC55. Hopefully I'll be able to get a a specimen this year.)

Any help or comments appreciated.