Intersection of vein R1 with vein C (white), distance between apices of veins R1 and R2+3 and apices of veins R2+3 and R4+5 (blue), distal vein R4+5 (pink) and setosity of proximal ventral half of vein C (red). A Romaleosyrphus bigoti sp. nov. B Sphecomyia weismani (Moran) C Criorhina bubulcus (Walker).

  Part of: Moran KM, Skevington JH (2021) ´╗┐Taxonomic revision of Romaleosyrphus Bigot (Diptera, Syrphidae), including descriptions of seven new species. ZooKeys 1075: 1-32.