Austroleptis atriceps Malloch, 1932: 203–204 An illustrated catalog of the South American Austroleptidae (Diptera: Tabanomorpha), with a compilation of all known records and new records from Chile and Argentina Fachin, Diego Aguilar González, Christian R. Elgueta, Mario Hauser, Martin Zootaxa 2024 2024-09-27 5514 3 273 293 JWYB Malloch, 1932 Malloch 1932 [151,429,1672,1699] Insecta Austroleptidae Austroleptis Animalia Diptera 6 279 Arthropoda species atriceps      Austroleptis atriceps Malloch, 1932: 203–204(antenna, fig. 15b). Type material: holotype, female (NHMUK); paratype, female (NHMUK); allotype, male (it should be deposited in NHMUK according to Malloch, 1932, but was not found; presumed lost). Type locality: Chile: Casa Pangue, Llanquihue.  References. Stuardo, 1946: 76(cat.); James, 1975: 2(cat.); Hennig, 1967: 28(com., antenna, fig. 40); Nagatomi & Nagatomi, 1987: 141(in key), 144–148 (redescr., head, figs. 4–5, abdomen, fig. 6); Fachin et al., 2018: 564(distr.), 559 (head, fig. 1), 563 (thorax, fig. 12), 566 (wing, fig. 21; habitus lateral, fig. 35).   Material examined.  2 ♀, Chile, Region IX Araucanía, Prov.[Province] Cautín, SE Curacautín, Conguillío Natl Park[Parque Nacional Conguillío], sector Playa Curacautín, Lago Conguillío, site ConguillíoMT & PT02, el. [elevation] 1134 m, 38°38’48.6”S 71°39’14.2”W,  09–21.i.2013, leg A. De Braekeleer& M. Pollet, sorted: M. Pollet13215 //  Austroleptis atriceps  ♀det.: D. Fachin 2018( 1 ♀, RBINS; 1 ♀, MNHNS);  1 ♀, Chile, Region IX, Araucanía, Prov.[Province] Cautín, SE Curacautín, PN Conguillío[Parque Nacional Conguillío], sector Captren, trail Los Carpinteros, 38°38’24.5”S 71°41’46.3”W, 1260 m,  09–21.i.2013, M. Pollet, A. De Braekeleer, 13222 //  Austroleptis atriceps  ♀det.: D. Fachin 2018( MNHNS);  1 ♀, Chile, Region IX Araucanía, Prov.[Province] Cautín, SE Curacautín, Conguillío Natl Park[Parque Nacional Conguillío], sector Captren; trail Los Carpinteros(site ConguillíoMT & PT03), el. [elevation] 1264 m, 38°38’24.5”S 71°41’46.3”W,  09–21.i.2013, leg. A. De Braekeleer& M. Pollet; sorted: M. Pollet13220,  Austroleptis atriceps  ♀det.: D. Fachin 2018( RBINS).  1 ♀, Chile, [La Araucanía], Malleco, 6 km, E. Malalcahuello, 13–31.xii.[19]82, 1080 m, A. Newton& M. Thayer// CNC 1274471( CNC);  1 ♀( Figs 8–11), Chile, [La Araucanía], Malleco, 14 km E. Malalcahuello, 3–31.xii.[19]82, 1570 m, A. Newton& M. Thayer// CNC  DIPTERA# 254158 // Barcode of Life, DNA voucher specimen, Smplel[BIOUG31901-C01, BOLD Proc. ID: SKEVD006-17 ( CNC);  1 ♀( Figs 12–14), Chile, [ Aysén], Aysén Province, Puerto Cisnes, 44°45’S 72°40’W, 1–15.ii.[19]61, Peña(NMSA-DIP 154044).  1 ♂( Figs 15–18), Chile, [ Los Lagos], Chiloé,  20.ii.1957, L.E. Peña// USNM ENT 00024150//  Austroleptis/spp./det. Woodley1991 ( CNC).   Distribution. Argentina: Neuquén Province(Lago Correntoso); Río Negro Province(Bariloche).  Chile:La Araucanía Region: Malleco Province (from 6 to 14 kilometers east of Malalcahuello, Parque Nacional Conguillío); Los Lagos Region: Osorno Province (Parque Nacional Puyehue, Termas Aguas Calientes; Portezuelo, Puyehue, 22 kilometers east of Anticura), Llanquihue Province (Parque Nacional Vicente Pérez Rosales, Casa Pangue), Chiloé Province (without precise locality); Aysén Region: Aysén Province(Puerto Aysén; Puerto Cisnes; Río Mañihuales); Magallanes Region: Tierra del Fuego Province (Olguita, southwest of Cameron) ( Figs 73, 75).   Comments. Nagatomi & Nagatomi (1987: 145)mentioned that an illustration of the wing of this species can be found in Nagatomi (1984), page 112, fig. 31, but this is incorrect, as it refers to  Dialysis iwatai Nagatomi, 1953.   Austroleptis atricepshas several long setae on flagellomere 1, one of them rather long, reaching to flagellomere 4. The first flagellomere has a field of short, stiff white setae on its apical side ( Fig. 17), which none of the other  Austroleptisspeciesseem to have. Additionally, the species is characterized by a flagellum with five flagellomeres, with flagellomeres 2–4 subequal in size, often dark brown, head dark brown to black, and distal palpus enlarged, rounded, shorter than basal segment ( Nagatomi & Nagatomi 1987). The two femalesfrom Malleco Province( Figs 8–11) matched the type, but their distal palpus is nearly as long as the basal segment, and they do not have as many setae on the veins as seen in the male ( Fig. 16) or the female specimens of  A. atricepsreported by ( Fachin et al.2018: 566, fig. 21). It should be noted that the pattern of setae on the wing veins of the holotypeand paratype( Figs 2 and 5), however, matches that of the females from Malleco Province. Our male was not compared to the male allotype, which is likely lost, as was not found in the NHMUK collection, nor with the other two provided by Nagatomi & Nagatomi (1987). The female from Puerto Cisnes, Aysén Province( Figs 12–14) is a much lighter specimen of the species and only the flagellomere 5 is dark brown. It is worth mentioning that the flagellum of none of the specimens here or elsewhere reported (see Fachin et al.2018) matches that of the female paratype(the flagellum is absent in the holotype), in which it seems that only the last three flagellomeres are dark brown, or as illustrated by Nagatomi & Nagatomi (1987), in which the flagellomeres 2–4 are dark brown.  Thereis one additional female, labeled “ Chile, Malleco, 14 km E. Malalcahuello, 38°28’35.70”S 71°24’28.26”W,  1570 m, A. Newton& M. Thayer”, in the CAUcollection (see the CNCdatabase: https://www.cnc.agr.gc.ca/ taxonomy/Specimen.php?id=641456). 4948103308 2013-01-09 2013-01-21 2013-01-09 Chile Prov. 1134 -38.646835 Conguillio Natl Park 1 -71.653946 Cautin 7 280 2 2 Araucania 4948103319 [564,1167,1572,1598] RBINS, MNHNS Chile 7 280 3 3 Araucania 4948103301 2013-01-09 2013-01-21 2013-01-09 Chile Prov. 1260 -38.64014 Captren 1 -71.6962 Cautin 7 280 1 1 Araucania 4948103311 [423,830,1680,1706] MNHNS Chile 7 280 1 1 Araucania 4948103314 2013-01-09 2013-01-21 2013-01-09 Chile Prov. 1264 -38.64014 Conguillio Natl Park 1 -71.6962 Cautin 7 280 1 1 Araucania 4948103303 [982,1369,1788,1814] RBINS Chile 7 280 1 1 Araucania 4948103305 CNC Chile 1080 Malleco 7 280 CNC 1274471 1 1 Araucania 4948103320 CNC Chile 1570 Malleco 7 280 DIPTERA # 254158 1 1 Araucania 4948103322 CNC Proc. ID Chile Smplel Barcode of Life 7 280 1 Araucania 4948103312 Pena Chile -44.75 Puerto Cisnes 1135 -72.666664 7 280 1 1 Aysen 4948103302 1957-02-20 USNM L. E. Pena Chile Chiloe 7 280 ENT 00024150 1 1 Los Lagos