Approx. 75mm in length.
No interactions present.
A Picture-Winged Fly, of which there are a great many. If you're lucky, one of the invertebrates geniuses will be able to get it at least to genus.
It's always good to report which plant you find these flies on, as they are plant-specific. Any idea what this one was on?
My Flickr photos...
No - unfortunately not. I was working at my laptop and it flew into the house from the garden. I have a lot of Yellow Irises in flower around my pond at the moment otherwise could be anything. The garden backs onto open rough meadow too.
Thanks for the suggestion though - my first posting on ispot!
I should have mentioned that this is the wing pattern for a female. The male's wing (fig. 234) looks quite different:
do you have nettles in your garden?
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Lat/Lng: 53.931, -1.101
OS grid ref: SE591486