At least 16 extant species are described in the genus, with nine from the
Palaearctic realm, one from the
Oriental realm, and five from the
Nearctic realm. Three fossil species have also been described. There are also several undescribed species from the sub-Mediterranean region of Europe and Turkey, and one undescribed species from the
Neotropical realm. One species from the Australasian realm, Microphor hiemalis, has also been described, but it does not appear to be cogeneric and may not belong in the subfamily Microphorinae.[2][3][4]
^Meunier, F. (1908). "Monographie des Empididae de l'ambre de la Baltique et catalogue bibliographique complet sur les dipteres de cette resine". Ann. Sci. Nat. Zool. 7 (9): 81–135.
^Saigusa, T.; Yang, D. (2003). "Empididae (Diptera) from Funiu Mountains, Henan, China (I)". Studia Dipterologica. 9 (2): 519–543.