Help with i/d

Has anyone observed a species with an apparently divided scutellum? This 8mm fly was found indoors yesterday.  I attach three pictures, one showing the genitalia.

Anthony Bainbridge

Comments

Thanks, Howard. I'm coming down to Heteromyza rotundicornis.  The basal antennal segment is indeed rotund, the costal cell is very large, no subcosta evident, head, thorax and abdominal colours seem appropriate.  I'm seeking a copy of the newish key from Ian for confirmation.  Meanwhile, two more pictures.

Anthony