Hemixylota varipes Shannon & Aubertin, 1933

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 : 59

Hemixylota varipes Shannon & Aubertin, 1933

Hemixylota varipes Shannon & Aubertin, 1933: 147

Type locality and data. “Ensenada. Argentina ” (T, ♀, BMNH) .

Material examined: Los Lagos: 1♀, Volcán Villarrica, 29.XII.1982, Leg. A. Newton & M. Thayer ( CNC); Casa Pangue ( Shannon & Aubertin, 1933) , 1♀, same locality, 10.XII.1926, Leg. F. & M. Edwards ( CNC) .

References. Shannon & Aubertin, 1933: 148 (desc.), fig. 30 (face, lateral); Stuardo, 1946: 126 (cat.); Hull, 1949b: 375 (desc.); Fluke, 1957: 112 (desc.); Etcheverry, 1963: 50 (cat.); Thompson, 1972b: 172–173, fig. 71 (male genitalia), 71a (aedeagus and apodeme), 71e (ejaculatory apodeme), 71s (sternum), 71t (tergum) ( Milesiinae rev.); Thompson et al., 1976: 121 (cat.); Thompson, 1999a: 334 (key).

World distribution. Argentina and Chile.

Chilean distribution. Only recorded from Los Lagos region.

Altitudinal range. From inland valleys to highland ecosystems (590– 2,500 m.a.s.l.).

Biology and notes. Hemixylota varipes is associated with the Valdivian evergreen forest, which has been replaced by urbanization, croplands and plantation forestry. All basic aspects of its biology and ecology remain unknown.

Conservation status. EN under B2ab (iii) using using AOO = 12 km 2 and three localities (or subpopulations); EOO = 9,716 km 2.

Genus Stilbosoma Philippi, 1865

Stilbosoma Philippi, 1865: 736 . Type-species Stilbosoma rubiceps Philippi, 1865 (sub. des., Shannon 1926).