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The last picture does look to have a more swollen hind femur and may well be a Syritta.
My Flickr photos...
Although femora is marginally swollen, looking at other images the Syritta is significantly swollen. Both species seem to have the same confusing attribute of swollen femora.
I think your original ID is correct.
Thanks for help.
Lat/Lng: 53.64086, -2.82498
OS grid ref: SD455163
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