Romaleosyrphus 3rd trochanter tubercle A Romaleosyrphus arctophiloides B Romaleosyrphus villosus.

 
 
  Part of: Moran KM, Skevington JH (2021) Taxonomic revision of Romaleosyrphus Bigot (Diptera, Syrphidae), including descriptions of seven new species. ZooKeys 1075: 1-32. https://doi.org/10.3897/zookeys.1075.55862