Saw this in my studio yesterday. Larger than a wasp with huge eyes and a horn at the front and yellow and black striped body.
No interactions present.
Looks like it could well be Tabanus sudeticus, but would need a size measurement and clear view of the abdomen to confirm.
Entomologist and biological recorder
I guess I have never had the opportunity to photograph one up close before but I always thought of them as smaller than this. This seemed and sounded like a monster to me but that could be because it was in my studio and not out in the field.
The size was approximately 2 - 2.5 cms with a low buzz like a large bumble bee.
Little so and so's. Pestered me throughout my summer fieldwork and given me a fair few bites. I don't really advocate killing anything but they are a pain.
Lat/Lng: 51.7, -4.1
OS grid ref: SN5903