Calling all botanists.

Having decided to take 2 days going down, we stopped off at the  site we were on in May. More luck... Because we'd been B4 we didn't have to faff about with plastic card numbers on the phone.
We tried somewhere nearer our route South DUH!
1st try ... " Please call our booking office on 01234567."
SO, we did ... ''Our office hours are ....... please call the site direct on 019876543''
We just HAVE!
''Stuff this for a game of toy soldiers, lets try Lucksall.''
Straight in like a rat up a drain pipe.

En route to the on-site cuppatearia I spotted this in the hedge.

Any ideas watchers?

BTW. I, totally, missed the wee fly type beastie until just now.