Unidentified fly

Unidentified fly

Observation - Unidentified fly - UK and Ireland. Description: At first I thought this fly was feeding from the leaf, as appeared to have mouthparts embedded. However, looking at the possible fungal infection, perhaps it was not well - didn't fly off when I got close. Have not been able to ID from the books I have, h

At first I thought this fly was feeding from the leaf, as appeared to have mouthparts embedded. However, looking at the possible fungal infection, perhaps it was not well - didn't fly off when I got close. Have not been able to ID from the books I have, however. Any ideas, folks?