Valdiviomyia valdiviana ( Philippi, 1865 )

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, Zootaxa 4959 (1), pp. 1-178 : 72

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 ).

Figures

FIGURE 103. Distribution map of Valdiviomyia camrasi (Sedman, 1965) (blue circles); Valdiviomyia darwini (Shannon, 1927) (red circles); Valdiviomyia edwardsi (Shannon & Aubertin, 1933) (black circles); Valdiviomyia gigantea Thompson, 2017 (Brown circles); Valdiviomyia nigra (Shannon, 1927) (pink circles); Valdiviomyia ruficauda (Shannon, 1927) (yellow circles); Valdiviomyia shannoni Thompson 2017 (green circles); Valdiviomyia valdiviana (Philippi, 1865) (black triangle) in Chile.