Large fly at least 3x the size of a honey bee or common hoverfly. ~4cm in length.
No interactions present.
That sounds a bit big for anything i have seen?
What flower was it feeding on?
I would like to look up the flower and compare it with the size of that in order to confirm that it really it 4cm long.
Its a Whopper :-)
Volucella zonaria also called the hornet mimic hoverfly CAN be up to 45 mm if it is the Wing Span that is being referred to
Its a good point you make always cite whether it is Wingspan or Body Length etc however these are immensily difficult to evaluate in the Field It is on the Buddleja Bush
Whats Happening with Nature ??? Visit the Nature Blog
Supporting FEET Conservation work & Biodiversity Recording
Those Buddleja flowers can get to a good 6.5cm so yes is is a large fly. The hornet mimics i know of are Sawflies. I was just a bit surprised!
Lat/Lng: 50.9, -2.7
OS grid ref: ST5517