Stilbosoma rubiceps 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 : 60-61

Stilbosoma rubiceps Philippi, 1865

Figs 82–84

Stilbosoma rubiceps Philippi, 1865: 45

Stilbosoma ruficeps Williston 1886: 332

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

Material examined. Valparaíso: 1♂, Lo Vásquez , 10.I.1956, Leg. H. Toro ( IEUMCE) ; 1♀, Quebrada El Tigre, Cachagua, Petorca , 15.XI.1989, Leg. C. González ( IEUMCE) ; 1♀, Pocochay, Quillota , 09.XI.2015, phot. col. Fabián Soto ( CSP) ; Metropolitana : 1♀, El Canelo, I.1968, Leg. Zapata ( IEUMCE) ; 1♀, El Manzano, 10.XI.1987, Leg. J. Herrera ( IEUMCE) ; 1♂, Lonquen , 20.XII.1957, Leg. J.O.R. ( MZUC) ; O’Higgins: 1♀, Doñihue , 18.X.2001, Leg. N. Lagos ( SAG) ; Maule: 1♂, Río Lontué , XII.1954, Leg. Aravena ( IEUMCE) ; 1♀, Fundo Malcho , III.1958, Leg. L. Peña ( CNC) ; 4♀, El Coigo, XI.1959, Leg. L. Peña ( CNC) ; 1♀, Las Cruces , III.1959, Leg. L. Peña ( CNC) ; 1♀, Parque Nacional Radal 7 Tazas , 28.I.2018, Leg. J. H., A. W. and A. M. Skevington ( CNC) ; Ñuble: 1♀, Cobquecura , II.1971, Leg. NN ( MZUC) ; 1♂, 1♀, Cordillera de Pemehue, I.1946, Leg. Peña ( MZUC) ; Biobío: 1♂ , Concepción, 22.XII.1967, Leg . Artigas ( MZUC) ; 1♀, Playa El Burro, 05.I.2015, Leg. R. Barahona-Segovia ( PCRBS) ; 1♂, Ratmuncho , 09.XI.1959, Leg. R. Torres ( MZUC) ; 1♀, PillimPille, Arauco, 14.I.1954, Leg. L. Peña ( IEUMCE) ; 1♀, Arauco, 16.II.2017, Leg. Nicólas Riffo Lepe ( CSP) ; La Araucanía: 1♀, Angol , 04.XI.1937, Leg. NN ( IEUMCE) ; 1♀, Termas de Río Blanco , 19.XI.1973, Leg. M. Etcheverry ( IEUMCE) ; 1♀, Los Coigües, Lago Villarrica , 15.I.1965, Leg. L. Peña ( CNC) ; Los Lagos: 3♀, Parque Nacional Puyehue , 7.II.2018, Leg. J. H., A. W. and A. M. Skevington ( CNC) .

References. Philippi, 1865: 45 (desc); Schiner, 1868: 336 (desc.); Williston, 1886: 322 (cat.); Reed, 1888: 298 (cat.); Kertész, 1910: 307 (cat.); Shannon, 1926: 45 (desc.); Shannon, 1927: 5 (key); Shannon & Aubertin, 1933: 155 (desc.); Stuardo, 1946: 127 (cat.); Hull, 1949b: 369 (desc.); Fluke, 1957: 107 (cat.); Etcheverry, 1963: 82 (cat.); Thompson, 1972b: 174, fig. 25 (wing), fig. 72 (male genitalia), 72a (aedeagus and apodeme), 72e (ejaculatory apodeme), 72s (sternum), 72t (tergum) ( Milesiinae rev.); Thompson et al., 1976: 121 (cat.); Thompson, 1999a: 335 (key); Camousseight, 2005: 93 (cat.).

World distribution. Chile.

Chilean distribution. From Valparaíso to Los Lagos región ( Fig. 87 ).

Altitudinal range. From coastal to highland ecosystems (14– 2,000 m.a.s.l.).

Biology and notes. Stilbosoma rubiceps is associated with native forests and its plant species such as M. exsucca (J.H., A.W. and A.M. Skevington pers. comm. from CNC). Nonetheless, organic crops such as Persea americana Mill. or Helianthus annus L. are also visited by this fly (Fabián Soto and Nicolas Riffo, CSP records respectively; see Fig. 83 ). Also, this fly visit flowers of the native E. paniculata (Josefina Arce, CSP record; Fig. 82 ).

Conservation status. LC; EOO = 219,379 km 2, AOO = 92 km 2, 21 subpopulations and 22 localities.

Subtribe Temnostomina

Genus Aneriophora Stuardo & Cortés, 1952

Aneriophora Stuardo & Cortés 1952: 311 (new name for Eriophora ). Type-species Eriophora aureorufa Philippi, 1865 (mon.).

Figures

FIGURE 87. Distribution map of Stilbosoma cyanea Philippi, 1865 (blue circles), Stilbosoma rubiceps Philippi, 1865 (red circles), and Aneriophora aureorufa Philippi, 1865 (black circles) in Chile.

FIGURES 80–86. Stilbosoma cyanea Philippi, 1865: (80) lateral view, resting in leaves, Reserva Nacional Coyhaique (photo by Patricia Medina) and (81) visiting Myrceugenia planipes (Hook. & Arn.) O. Berg, Estación Biológica Senda Darwin (photo by Rodrigo Barahona-Segovia). Stilbosoma rubiceps Philippi, 1865: (82) visiting Eryngium paniculatum Cav & Dombey ex. F. Delaroche, Península de Hualpén (Photo by Josefina Arce); (83) visiting Helianthus annuus L., Arauco (photo by Nicolas Riffo); (84) resting in a tree, Cerro Caracol, Concepción (photo by Francisco Andana). Aneriophora aureorufa Philippi, 1865: (85) visiting flowers of M. planipes, Estación Biológica Senda Darwin (photo by Rodrigo Barahona-Segovia); (86) dorsal view (photo by Matías Barceló). Scale bar = 1 mm.