Pelecorhynchus vulpes ( Macquart, 1850 )

Llanos, Lorena, Gonzalez, Christian R. & Córdoba, Mónica Saldarriaga, 2015, Revision of the New World species of the genus Pelecorhynchus Macquart, 1850 (Diptera: Pelecorhynchidae), Zootaxa 3955 (2), pp. 188-210 : 205-206

Pelecorhynchus vulpes ( Macquart, 1850)

( Figs. 50–56 ).

Pangonia vulpes Macquart, 1850: 23 . Type locality: " Chile ". Type ♂, Muséum National d’Histoire naturelle, Paris. Pelecorhynchus aurantiacus Ricardo, 1900: 103 . Type locality: " Chile ". Type ♀, British Museum (Natural History).

Material examined. Región Metropolitana: 1 ♀ Cordillera, El Canelo without date col. M. Cerda; Región del Maule: 1 ♀ Talca, Vilches Alto without date col. G. Aceituno; Región de Los Ríos: 1 ♀ Valdivia, Valdivia 17.XII.1973 col. E. Krahmer; 1 ♀ Valdivia, Valdivia 11.XII.1986 col. E. Krahmer; 1 ♀ Valdivia, Valdivia 02.I.1974 col. E. Krahmer.

Diagnosis and comments. Body color reddish-brown. Scutum reddish-brown with abundant orange-rufous hairs, without longitudinal stripes. Scutellum reddish-brown with abundant hairs of the same color on the distal margin. Pleura with long abundant orange-rufous hairs, anepisternum with tufts of long whitish hairs. Wing slightly infuscated orange. Abdomen with orange-rufous hairs, without spots ( Fig. 50 ). This species differs from all other species of Pelecorhynchus in the reddish-brown color of the body and scutum without two parallel longitudinal stripes. The Australian species of the fulvus -group have an orange abdomen but the scutum has two parallel stripes.

Description. Female (N = 5; length: 17.0 – 21.5 mm). Head: eyes dark brown, bare. Frons brown, parallel-sided with orange-rufous hairs. Parafacial with short orange-rufous hairs. Ocellar triangle with three ocelli ( Fig. 51 ). Posterior border of the head orange-rufous with concolorous pilosity; vertex with short orange-rufous hairs. Clypeus convex brown with few orange-rufous hairs. Gena brown with long and abundant orange-rufous hairs continuous with those of the occiput. Scape and pedicel brown with concolorous hairs; first flagellomere dark brown; apical flagellomeres dark brown ( Fig. 52 ). Maxillary palpus orange-rufous with long abundant orangerufous pilosity, distal segment spatulate ( Fig. 52 ). Proboscis and labellum dark brown.

Thorax: scutum reddish-brown with short abundant orange-rufous pilosity, without longitudinal stripes ( Fig. 53 ). Scutellum reddish-brown with long orange-rufous hairs on distal margin ( Fig. 53 ). Pleura with long abundant orange-rufous hairs; anepisternum with tufts of long whitish hairs ( Fig. 54 ). Legs reddish-brown. Coxa with long abundant orange-rufous hairs. Wing slightly infuscated orange along costal margin ( Fig. 55 ).

Abdomen: reddish-brown dorsally with orange-rufous hairs on all tergites, without spots ( Fig. 56 ). Sternites concolorous with tergites and with abundant orange-rufous hairs, without spots.

Male. Not examined

Geographic distribution. Chile (Región Metropolitana and Región de Los Ríos)( Fig. 57 ).

Figures

FIGURE 57. Geographic distribution of Pelecorhynchus vulpes (Macquart, 1850).

FIGURES 50 – 56. Pelecorhynchus vulpes (Macquart, 1850), female. 50. Adult. 51. Head in frontal view. 52. Head in lateral view. 53. Thorax in dorsal view. 54. Head and thorax in lateral view. 55. Wing. 56. Abdomen in dorsal view. Scale bar = 1 mm