I saw this on the Buddleia outside the Visitors Centre.
My Flickr. Photos link HERE
Hi Nick, It looks to me like Volucella zonaria sometimes known as the hornet mimic hoverfly. I'm not an expert so you might want to wait for further opinions
____________________________________________________________________
Tony
My Flickr Photostream
Ok! Thanks Teejay
Let's hope I'm right, Nick.
Incidentally, although I appreciate your local patch is Minsmere there's nothing to stop you joining in on the Main Forum which is where I mostly post. We see everything that's posted including all the groups.