gastrostactus (Wiedemann), 1830: 123 (Syrphus). Type locality: " Brazil ". HT M (AMNH). Distr.: Colombia (Antioquia (Alejandria), Caldas, Cundinamarca, Meta, Risaralda), Brazil, Costa Rica, Venezuela. Refs.: Hull, 1943 f: 65, fig. 2 (alula); 1949 c: 226, figs. 163–164 (abdomens); 258, figs. 299–300 (wings); Thompson et al. 1976: 19 (cat.). Material examined. COLOMBIA: Antioquia: Alejandria, 6.401714 °, - 75.058838 °, 1200m, 1 male, 8.xi.07, Leg. A.L. Montoya, Vsr. Fish (CEUA).Published as part of Montoya, Augusto L., 2016, FAMILY SYRPHIDAE, pp. 457-537 in Zootaxa 4122 (1) on page 471, DOI: 10.11646/zootaxa.4122.1.39, http://zenodo.org/record/25932