Metallic green fly largish fly ~ 1/2" long
No interactions present.
We cannot all be experts in all fields ,I made the ID based on my on limited knowledge ,I do apologise .
if i came across critically, it is a problem with the ambiguous nature of the "i am as sure as i can be" comment which is the highest degree of confidence available on ispot and i take to mean that you believe the identification to have a very high likelihood of being correct. I interpret this as meaning "I am familiar with all salient features and have been able to discern them in this photo". However, it seems that quite different interpretation is place on it by others.
Lat/Lng: 53.41096439093, -0.97254753112793
OS grid ref: SK683909
Hedge lined bridleway with grass & brambles underneath.