Macrostomus perpulchrus is a species of dance flies, in the fly family Empididae.
References
^Bezzi, M. (1909). "Beitrage zur Kenntnis der sudamerikanischen Dipterenfauna Fam. Empididae". Nova Acta Physico-medica Academiae Caesareae Leopoldino-Carolinae Naturae Curiosum. 91: 297–406.