Dolichogyna (Nosodepus) nigripes Bigot, 1884

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 : 31-32

Dolichogyna (Nosodepus) nigripes Bigot, 1884

Figs 35–36

Dolichogyna nigripes Bigot, 1884: 346

Tubifera nigripes, Kertész, 1910: 257 *

Dolichogyna (Conocotamyia) nigripes Fluke, 1951a: 477 *

Type locality and data. “ Chile ” (T, A, BMNH) .

Material examined. Tarapacá: 2♂, Chiapa, 2959 m, 23–24.IV.1969, Leg. L.E. Peña ( MEUC) ; Antofagasta: 1♀ , San Pedro de Atacama, Jama , XI.1997, Leg. V. Jerez ( MZUC) ; 1♀, Mucar , 18.I.1967, Leg. L.E. Peña ( MEUC) ; 1♀, Tumi , IX.1968, Leg. R.H. González ( MEUC) ; Maule: 2♀, Laguna del Maule, 2200 m, 15–16.I.1968, Leg. L.E. Peña ( MEUC) ; Ñuble: 1♂, Puentes Comadres, Chillán , 20.I.1995, Leg. S. Roitman ( MNHNCL) ; 1♂, Termas de Chillán , Leg. G. Cerda ( MNHNCL) ; Aysén: 1♀ , Aysen, II.1934, Leg. P. Pirión ( MEUC) ; Magallanes: 1♂ , Cabo Ne- gro, 11.I.1979, Leg. NN ( MNHNCL) ; 1♂, Ojo Bueno , 23.XI.1974, Leg. Cerda ( MNHNCL) ; 1♂, Reserva Forestal 12.XI.1976, Leg. M. Cerda ( MNHNCL) ; 1♂, Laguna Lynch , 28.XII.1968, Leg. V. Pérez ( MNHNCL) ; 1♂, Ruhens , 16.XII.1976, Leg. NN ( MNHNCL) ; 1♂, Tres Brazos , 28.XII.1928, Leg. Cerda (MNHN) .

References. Bigot, 1884: 345 (desc.); Williston, 1888: 320 (cat.); Kertész, 1910: 257 (cat.); Hine, 1914: 343 (desc. & key); Shannon & Aubertin, 1933: 165 (desc.); Fluke, 1951a: 477, fig. 16, 26 (desc); Fluke, 1957: 122 (cat.);

Etcheverry, 1963: 31 (cat.); Thompson et al., 1976: 46.97 (cat.); González & Coscarón, 2005: 347 (distr.); Smith- Ramírez et al., 2005: 412 (pollinator study).

World distribution. Argentina, Peru and Chile.

Chilean distribution. From Tarapacá to Magallanes region ( Fig. 39 ).

Altitudinal range. From coastal to highland ecosystems (50– 3,000 m.a.s.l.).

Biology and notes. Dolichogyna nigripes is associated with M. planipes in the northern Chiloé Island (Smith- Ramírez et al., 2005). This flower fly has also been recorded on Chrysanthemum sp. (Patricia Medina, CSP record; Fig. 35 ). Other aspects about its biology and ecology remain unknown.

Conservation status. LC; EOO = 485,601 km 2;AOO = 44 km 2, nine subpopulations and ten localities (probably these last ones be more).

Figures

FIGURE 39. Distribution map of Dolichogyna species in Chile: D. abrupta Hine, 1914 (Blue circle); D. chilensis Walker, 1836 (red circles); D. hinei Fluke, 1957 (black circles); D. nigripes Bigot, 1884 (green circles); D. pictus (Philippi, 1865) (yellow circles); D. pennipes (Sack, 1941) (violet star) and D. reynoldsi Shannon & Aubertin, 1933 (violet circles).

FIGURES 35–38. Dolichogyna nigripes Bigot, 1884: (35) dorsal view (photo by Patricia Henríquez); (36) in situ in a ‘Margarita’ (Chrysantemum sp.), Aysén (Photo by Patricia Medina). Dolichogyna pictus (Philippi, 1865): (37) female, head and (38) female, lateral view. All scale bars = 1 mm.