Copestylum (Phalacromya) willinki (Fluke, 1951)

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 : 95

Copestylum (Phalacromya) willinki (Fluke, 1951)

Figs 140–141

Volucella willinki Fluke, 1951b: 10

Type locality and data. “ Tucumán: Siambon. Argentina ” (T, ♂, IML) .

Material examined. Atacama: 1♀, Cuesta Pajonales, 24.IX.1967, Leg. R. Charlin ( MEUC) ( Fig. 147 ) .

References. Fluke, 1951b: 10, figs 2, 24 & 54 (desc.); Thompson et al., 1976: 87 (cat.).

World distribution. Argentina and Chile.

Chilean distribution. Only recorded from Atacama region.

Altitudinal range. This species mainly inhabits inland valleys between 400– 700 m.a.s.l.

Biology and notes. Copestylum willinki is here reported from Chile for the first time and associated with xeric conditions and semi-desertic shrublands. This species can be observed in the south of the Atacama Province in Chile ( Morrone 2014). Other aspects of its biology and ecology remain unknown in Chile.

Conservation status. DD; AOO = 2 km 2 and one locality (or subpopulation).

Figures

FIGURE 147. Distribution map of Copestylum gibbera (Schiner, 1868) (yellow circles); Copestylum pseudotachina (Hull, 1936) (blue circles); Copestyllum scutellata (Macquart, 1842) (red circles); Copestylum yura (Curran, 1930) (black circles); Copestylum willinki (Fluke, 1951) (green circles); Ornidia obesa (Fabricius, 1775) (pink circles) in Chile.

FIGURES 140–143. Copestylum willinki (Fluke, 1951): (140) lateral view and (141) dorsal view, female (Photos by Vicente Valdés). (142) Copestylum pseudotachina (Hull, 1936) feeding on Aloysia deserticola (Phil.) Lu-Irving & O’Leary, Socaire (Photo by Diego Reyes). (143) Ornidia obesa (Fabricius, 1775), dorsal view (Photo by Vicente Valdés).