Austroleptis fulviceps, Malloch, 1932

Fachin, Diego Aguilar, González, Christian R., Elgueta, Mario & Hauser, Martin, 2024, An illustrated catalog of the South American Austroleptidae (Diptera: Tabanomorpha), with a compilation of all known records and new records from Chile and Argentina, Zootaxa 5514 (3), pp. 273-293 : 282

fulviceps Malloch, 1932

(holotype, Figs 35–38 ; paratype, Figs 39–42 , and additional non-type specimens, Figs 43–53 )

Austroleptis fulviceps Malloch, 1932: 202–203 (wing and antenna, figs. 14 and 15a). Type material: holotype, female (USNM); paratype, female (NMHUK). Type locality: Chile: Casa Pangue , Llanquihue.

References. Stuardo, 1946: 76 (cat.); Hennig, 1967: 29 (com., wing, fig. 45); James, 1975: 2 (cat.); Nagatomi & Nagatomi, 1987: 141 (in key), 150–152 (redescr., head, figs. 9–10).

Material examined. 1 ♀ ( Figs 43–45 ), Chile, [Biobío], Ñuble Prov., Las Trancas 1250 m, 10.xii.[19]82– 03.i.[19]83, A. Newton & M. Thayer // USNM ENT 00024142 ( CNC) . 1 ♀ ( Figs 46–49 ), Chile, C. Curicó, Curicó [Curicó Province, Cordillera Curicó], El Coigo , x–xi.1959, L.E. Peña // USNM ENT 00024147 ( CNC) .

Distribution. Chile: Maule Region: Curicó Province (Cordillera Curicó, El Coigo); Ñuble Región: Diguillín Province (Las Trancas); Los Lagos Region: Llanquihue Province (Parque Nacional Vicente Pérez Rosales, Casa Pangue), Chiloé Province (Dalcahue) ( Figs 73, 77 ).

Comments. The female from Las Trancas ( Fig. 44 ) has the same collection label as the specimen of A. breviflagella above from Las Trancas ( Figs 32 ). Although they are from the same collecting event, the two species are clearly distinct. Austroleptis fulviceps has five flagellomeres, of which 2 to 5 are black ( Fig. 45 ), the thorax has a lighter coloration ( Figs 43, 46 ) and the pterostigma is yellowish ( Fig. 48 ), not dark brown as in the A. breviflagella specimen ( Fig. 30 ). There is one additional specimen, male, from “El Radal, Talca, 900 mts, 26.xi.1957, L.E. Peña // USNM ENT 00024149 (CNC) ( Figs 50–53 ), identified as Austroleptis cf. fulviceps . As the male of A. fulviceps is not known, we think that this specimen is the male of the species, because it has 5 flagellomeres, the second palpus segment shorter than the first, antennal flagellomeres 2 to 5 not shorter than the combination of scape, pedicel, and flagellomere, and flagellomeres with several long setae. The characters not fitting the description (of the female) are: i) the halteres are described as yellowish brown, while they are dark brown in this male; ii) the flagellomeres are described as all black, while only the last two flagellomeres are black (the rest is orange) in this male; and iii) the second palpus segment is black according to the original description, while it is bright orange in this specimen.

Figures

FIGURES 35–38. Austroleptis fulviceps Malloch, 1932, female, holotype [USNM] © National Museum of Natural History, Washington, D.C. (USA).

FIGURES 39–42. Austroleptis fulviceps Malloch, 1932, female, paratype [NMHUK] © The Natural History Museum, London (United Kingdom).

FIGURES 43–53. Additional specimens of Austroleptis fulviceps Malloch, 1932. 43–49. Female [CNC]. 50–53. Male [CNC].

FIGURE 73–79. Geographic distribution of Austroleptis in South America. 73. Map with all the records of Austroleptidae (data compiled in Table 1). 74. Map of Austroleptis atrata. 75. Map of A. atriceps. 76. Map of A. breviflagella. 77. Map of A. fulviceps. 78. Map of A. penai. 79. Map with records of Austroleptis sp. 1, Austroleptis sp. 2, and additional records of undetermined specimens of the genus. Square indicates the holotype of each species.

FIGURES 23–34. Additional specimens of Austroleptis breviflagella Nagatomi & Nagatomi, 1987. 23–25. Male [NMSA]. 26–29. Female [RBINS]. 30–34. Females [CNC].