Updating the knowledge of the flower flies (Diptera: Syrphidae) from Chile: Illustrated catalog, extinction risk and biological notes Author Barahona-Segovia, Rodrigo M. Author Riera, Pamela pamela.riera1@gmail.com Author Pañinao-Monsálvez, Laura laurapaninao@gmail.com Author Guzmán, Vicente Valdés vicente.mvg@gmail.com Author Henríquez-Piskulich, Patricia phenriquezpi@student.unimelb.edu.au text Zootaxa 2021 2021-04-15 4959 1 1 178 journal article 7241 10.11646/zootaxa.4959.1.1 e9fcfa2b-72cd-4826-a7e5-c33cd37bf00e 1175-5326 4693464 3BAB6920-30AC-410A-995B-BBDA9E2A105D Valdiviomyia valdiviana ( Philippi, 1865 ) Ocyptamus valdivianus Philippi, 1865: 748 Ocyptamus albimanus Bigot, 1884: 325 Valdivia albimanus Shannon & Aubertin, 1933: 149 Type locality and data. “ Valdivia , Chile ” (T, A, MNHNCL ) . Material examined. Los Ríos : 1♂ , no data, Leg. NN ( MNHNCL ) ; 1♀ , Valdivia , ( BMNH ; Mengual et al. 2017; figs 10–11) . References. Philippi, 1865: 748 (desc.); Bigot, 1883: 325 (desc.); Williston, 1886: 314 (cat.); Reed, 1888: 299 (cat.); Kertész, 1910: 165 (cat.); Shannon & Aubertin, 1933: 149 (desc.); Stuardo, 1946: 124 , 126 (cat.); Fluke, 1956: 54, 265 (cat.); Etcheverry, 1963: 91 (cat.); Thompson et al. , 1976: 118 (cat.); González & Coscarón, 2005: 347 (distr.); Thompson & Thompson, 2017: 15 , 19 (rev. & key); Mengual 2017: 436 , fig. 10–11 (key). World distribution. Chile . Chilean distribution. Only recorded from Los Ríos region ( Fig. 103 ). Altitudinal range. This species could mainly occur in coastal ecosystems between 5 and 100 m . a.s.l. Biology and notes. Valdiviomyia valdiviana is associated with native forests. Only two specimens of this species are known to date. Philippi in 1865 described the species Ocyptamus valdivianus based on the male, whereas Bigot (1884) described the female by the name of Ocyptamus albimanus . Both species were treated as separated species for many decades by different authors such as Shannon & Aubertin (1933) and Etcheverry (1963) under the genus Valdivia Vockeroth. Goot (1964) finally synonymized both specimens under the same species and later, Thompson et al. (1976) changed the genus Valdivia to Valdiviomyia . Nothing is known about its biology or ecology. Conservation status. DD; AOO = 2 km 2 and one locality (or subpopulation). Subtribe Tropidiina Genus Syritta Le Peletier & Audinet-Serville, 1828 Syritta Le Peletier & Audinet-Serville, 1828: 808 (as subg. of Xylota Meigen, 1822: 211 ). Type-species, Musca pipiens , Linné, 1758 (as Xylota pipiens Meigen ).