^Mengual, Ximo (2012). "Is the mega-diverse genus Ocyptamus (Diptera, Syrphidae) monophyletic? Evidence from molecular characters including the secondary structure of 28S rRNA". Molecular Phylogenetics and Evolution. 62 (1): 191–205. doi:10.1016/j.ympev.2011.09.014. PMID21985963.