Platycheirus (Carposcalis) punctulatum ( Wulp, 1888 )

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 : 110

Platycheirus (Carposcalis) punctulatum ( Wulp, 1888)

Melanostoma punctulatum Wulp, 1888: 375

Melanostoma punctulatum Lynch Arribálzaga, 1891: 310 *

Melanostoma (Carposcalis) punctulatum Fluke, 1945: 14 *

Carposcalis punctulatum Fluke, 1957 , fig. 67, 68*

Type locality and data. “ Ecuador ” (T, A, currently lost) .

Material examined. Arica y Parinacota: Putre, 3650 m, 23.II.1948 ( Etcheverry 1952); Azapa, 12.III.1948 ( Etcheverry 1952); Tarapacá: Mamiña, 2730 m, 17.VII.1951 ( Etcheverry 1952); Noasa, 3850 m, 29.VII.1951 ( Etcheverry 1952); Metropolitana: 1♂, Cerro San Cristóbal, 27.XI.1987, Leg. R. L. Brown ( CNC); 1♀, La Granja, 25.XI.1982, Leg. R. L. Brown ( CNC); Maule: Reserva Nacional Los Ruiles ( Espinoza et al. 2012); La Araucanía: 1♀, Temuco, 7.VIII.1986, Leg. R. Rebolledo ( UFRO); Los Lagos: 1♀, Biological station Senda Darwin, km14 Chiloé, Chile, 12–15.I.2015, Leg. Cecilia Smith-Ramírez ( CSD).

References. Wulp, 1888: 375 (desc.); Lynch Arribálzaga, 1891: 310 (cat.); Curran, 1937: 2 (distr.); Fluke, 1945: 14, figs 20 & 58 (desc.); Stuardo, 1946: 124 (cat.); Etcheverry, 1951: 355 (cat.); Etcheverry, 1952: 307 (cat.); Fluke, 1952: 14 (desc.); Fluke, 1958: 275, figs 67–68 (genitalia); Etcheverry, 1963: 56 (cat.); Etcheverry, 1970: 95 (distr.); Thompson et al., 1976: 41 (cat.); Rivera-Hutinel et al., 2010: 19 (ecological study); Espinoza et al., 2012: 506 (ecological study); Marín-Armijos et al., 2017: 176 (cat.).

World distribution. Argentina, Brazil, Ecuador, Peru and Chile.

Chilean distribution. From Arica y Parinacota to Los Lagos region ( Fig. 164 ).

Altitudinal range. From coastal to highland ecosystems ( 1–3,850 m.a.s.l.).

Biology and notes. Platycheirus punctulatum has been reported on rare occasions visiting flowers of Viola portalesia Gay in native habitats ( Espinoza et al. 2012) and in opened flowers in pine plantations ( Rivera-Hutinel et al. 2010). Because its habitat has been intensively fragmented by croplands, forestry and urbanization ( Miranda et al., 2017), we applied the precautory principle.

Conservation status. VU B2ab (iii) using AOO = 36 km 2 and nine localities (or subpopulations); EOO = 296,665 km 2.

Figures

FIGURE 164. Distribution map of Platycheirus species in Chile: Platycheirus (Carposcalis) chalconotus (Philippi, 1865) (blue circles); Platycheirus (Carposcalis) fenestratus (Macquart, 1842) (red circles); Platycheirus (Carposcalis) punctulatum (Wulp, 1888) (black circles); Platycheirus (Carposcalis) lundbladi (Enderlain, 1940) (green circles) and Paragus angustistylus Vockeroth, 1968 (yellow triangle).