Tropidia (Tropidia) rubricornis 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 : 76-77

Tropidia (Tropidia) rubricornis Philippi, 1865

Tropidia rubricornis Philippi, 1865: 744

Type locality and data. “ Colchagua Prov. , Chile ” (T, ♂, MNHNCL) .

Material examined. Arica y Parinacota: 1♂, Desembocadura río Lluta , 4.IV.1974, Leg. H. Vasquéz (UTA) ; Lluta, Rosario , 10.II.1948 ( Etcheverry 1952) ; 1♀, Lluta , km 41, 18.XI.1968, Leg. G. Díaz P. (UTA) ; 1♀, Camarones , 17.I.1974, Leg. J. Acuña (UTA) ; Tarapacá: 1♀, Guatacondo, 2150 m, 11.XII.1967, Leg. L.E. Peña ( MEUC) ; Metropolitana:(sex undetermined) Caleu, Lo Marín , 03.XI.1989, Leg.M.Cerda ( MNHNCL) ; O’Higgins: 1♂, Pangal , 03.I.1964, Leg. H. Toro ( IEUMCE) ; Ñuble : (sex undetermined) Las Trancas, Leg. S. Roitman ( MNHNCL) .

References. Philippi, 1865: 744 (desc.); Williston, 1886: 321 (cat.); Reed, 1888: 298 (cat.); Kertész, 1910: 282 (cat.); Shannon, 1926: 50 (material not examined); Shannon & Aubertin, 1933: 153 (desc. & key); Stuardo, 1946: 127 (cat.); Etcheverry, 1952: 308 (cat.); Fluke, 1957: 104 (desc.); Etcheverry, 1963: 90 (cat.); Etcheverry, 1970: 95 (cat.); Thompson et al., 1976: 120 (cat.); Camousseight, 2005: 94 (cat.).

World distribution. Chile.

Chilean distribution. From Arica y Parinacota to Ñuble region ( Fig. 110 ).

Altitudinal range. From coastal to highland ecosystems (0–2,150 m.a.s.l.).

Biology and notes. Tropidia rubricornis is a species with a wide distribution and associated to different ecosystems. It has been collected in ‘Chilca’ plants ( Baccharis sp.). No other data is known about the biology of this species.

Conservation status. VU under B2ab (iii) using AOO = 32 km 2 and six localities (or subpopulations); EOO = 208,406 km 2.

Subtribe Xylotina

Genus Macrometopia Philippi, 1865

Macrometopia Philippi, 1865: 740 . Type-species, atra Philippi (mon.). Refs. Hull, 1949b: 365, fig. 221 (head); Thompson, 1972b: 152–153 (Milesinae rev. & desc.); Thompson, 1999a: 333 (key), 347 (species key).

Figures

FIGURE 110. Distribution map of Tropidia flavimana (Philippi, 1865) (black circles); Tropidia rubricornis Philippi, 1865 (violet circles); Tropidia notata (Bigot, 1882) (red circles); Tropidia nigricornis Philippi, 1865 (green circles) and Syritta flaviventris Mcquart, 1842 (blue circles) in Chile.