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Being a female, It's not easy to be certain of pendulus without a view of the hind tibia, though the frons pattern maybe looks like pendulus.
My Flickr photos...
Thanks Ian, a very strong wind on the common meant that most insects seen were very much on the move and it was not always possible to get full photographs. I will add another that might help.
Lat/Lng: 50.72031, -1.84628
OS grid ref: SZ109911