Intersection of vein R1 with vein C, distance between apices of veins R1 and R2+3 and apices of veins R2+3 and R4+5+M1 and setosity of anterior ventral half of vein C before crossvein h. A Matsumyia sp. B Sphecomyia weismani C Criorhina bubulcus (Walker, 1849).

  Part of: Moran KM, Skevington JH (2019) Revision of world Sphecomyia Latreille (Diptera, Syrphidae). ZooKeys 836: 15-79.