Myolepta (Myolepta) nausicaa (Hull, 1937) Figs 8–9 Nausigaster nausicaa (Hull, 1937: 172) Type locality and data. “ Montevideo, Uruguay ” (T, ♀, USNM). Material examined. Metropolitana: 1♀, Quilicura, 30.XII.1954, Leg. L. Peña (CNC); (sex undeterminated) Tobalaba, II.1955, Leg. L. Peña (CNC). References. Hull, 1937: 172 (desc.); Thompson 1974a: 328 (Myolepta review); Thompson et al., 1976: 46 (cat.). World distribution. Argentina, Uruguay and Chile. Chilean distribution. Only recorded from Metropolitan region (Fig. 10). Altitudinal range. This species has mainly been recorded in Mediterranean valleys (485– 567 m.a.s.l.). Biology and notes. All basic aspects of its biology and ecology remain unknown in Chile. Conservation status. DD; AOO = 4 km 2 and two localities (or subpopulations). Genus Orthonevra Macquart, 1829 Orthonevra Macquart, 1829: 188 (40). Type-species, Chrysogaster elegans Meigen (mon.). Refs. Sedman, 1964 (rev, Keys); Thompson, 1972b: 119–121 (description); Thompson et al., 1976: 90–91 (cat.); Thompson, 1981: 141 (taxonomic notes); Thompson, 1999a: 332. Orthoneura, emend. Cryptineura Bigot, 1859: 308. Type-species, C. hieroglyphca Bigot (mon.) = nitida Wiedemann. Chrysogaster authors (part).

Published as part of Barahona-Segovia, Rodrigo M., Riera, Pamela, Pañinao-Monsálvez, Laura, Guzmán, Vicente Valdés & Henríquez-Piskulich, Patricia, 2021, Updating the knowledge of the flower flies (Diptera: Syrphidae) from Chile: Illustrated catalog, extinction risk and biological notes, pp. 1-178 in Zootaxa 4959 (1) on pages 19-20, DOI: 10.11646/zootaxa.4959.1.1, http://zenodo.org/record/4693464