Chloropid fly

Chloropid fly

Observation - Chloropid fly - UK and Ireland. Description: Many of these tiny 3mm flies out today. I think this is Thaumatomyia notata the Yellow swarming fly, which often overwinters in roof spaces, but am not sure how to be 100% certain as there are some similar species.

Many of these tiny 3mm flies out today. I think this is Thaumatomyia notata the Yellow swarming fly, which often overwinters in roof spaces, but am not sure how to be 100% certain as there are some similar species.