Austroscaeva patagoniensis ( Kassebeer, 1999 )

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 : 124

Austroscaeva patagoniensis ( Kassebeer, 1999)

Fig. 173

Scaeva patagoniensis Kassebeer 1999: 101

Type locality and data. “Las Trancas, Ñuble” (HT, ♀, CFK) .

Literature distribution. Coquimbo: 1♂, 5 miles N of Laguna Dam , 2438 m., 06.xii.1950, Leg. R. & M. Bacher ( CAS; Mengual et al. 2018a); Ñuble : 1♂, Las Trancas , 13.XII.1993, Leg. Ugarte ( CFK) ; 1♂, Termas de Chillán , 10.XII.1951, Leg. L. E. Peña ( CNC) .

References. Kassebeer, 1999: 101, fig. 1 (abdomen) (desc. & key); Mengual et al., 2018a: 161 (desc. & phylogeny).

World distribution. Argentina and Chile.

Chilean distribution. From Coquimbo to Ñuble region ( Fig. 175 ) .

Altitudinal range. From precordillera to highland ecosystems (1,517–2,438 m.a.s.l.).

Biology and notes. All basic aspects of its biology and ecology remain unknown in Chile. Recent records have been reported by citizen scientists in the Magallanes region.

Conservation status. EN under B1ab (iii) + B2ab (iii) using EOO = 4,084 km 2, AOO = 12 km 2 and three localities (or subpopulations)

Figures

FIGURE 175. Distribution map of Austroscaeva species in Chile: Austroscaeva melanostoma (Macquart, 1842) (blue circles); Austroscaeva occidentalis (Shannon, 1927) (red circles); Austroscaeva patagoniensis (Kassebeer, 1999) (black circles) and Austroscaeva penai (Marnef in Dušek & Láska, 1985) (green circles).

FIGURES 173–174. Austroscaeva patagoniensis (Kassebeer, 1999): (173) female, Punta Arenas (photo by José Díaz Tavie). Austroscaeva penai (Marnef in Dušek & Láska, 1985): (174) dorsal view (photo by Patricia Henríquez). Scale bar = 1.2 mm