^Osten Sacken, Karl Robert (1882). "Diptera from the Philippine Islands brought home by Dr. Carl Semper, and described by C.R. Osten Sacken". Berliner Entomologische Zeitschrift. 26: 83–252.
^Knutson, Lloyd V.; Thompson, F. Christian; Vockeroth, J. Richard (1975). "Family Syrphidae". A Catalog of the Diptera of the Oriental Region Suborder Brachycera through Division Aschiza, Suborder Cyclorrhapha. 2: 307–374.