Not sure of sub-species
No interactions present.
I'm not aware of any sub-species (I'm sure someone will put me right) but it's got a pale notched spur so I believe your ID is correct.
Chris Brooks - www.dragonfly-images.co.uk
My Flickr site - www.flickr.com/photos/ceb1298
Lat/Lng: 52.64511, -3.01951
OS grid ref: SJ311057