Black fly

Black fly

Observation - Black fly. Description: This medium-sized fly shows fairly well in these pics so I wondered if an id might be possible. As an idea of scale, the central disc of the flower is about 15-18mm or so across (i.e. excluding the petals).

This medium-sized fly shows fairly well in these pics so I wondered if an id might be possible. As an idea of scale, the central disc of the flower is about 15-18mm or so across (i.e. excluding the petals).