324,661 research outputs found
Stilobezzia (Acanthohelea) longisternalis Cazorla and Spinelli 2012
No full textStilobezzia (Acanthohelea) longisternalis Cazorla and Spinelli, 2012 (Figure 15C) Stilobezzia (Acanthohelea) longisternalis Cazorla and Spinelli, 2012b: 187 (male, female; Argentina); Borkent, 2014: 135 (in online World catalogue). Diagnosis The only Patagonian species of Stilobezzia (Acanthohelea) in which males have the sternite 9 with an elongate, slender posteromedian projection. Females scutum with 14 large and 13 thinner setae and the abdomen brown except the abdominal segment 8 heavily sclerotized. Distribution Argentina (Río Negro) (Figure 20). Types Holotype male, allotype female, Argentina, Río Negro prov., Parque Nacional Nahuel Huapi, arroyo Ñireco (Complejo Challhuaco), 41°11 ′ 51.9 ″ S, 71°19 ′ 40 ″ W, 962 m, 20 December 2006 to 23 January 2007, J. Massaferro – A. Garre – F. Montes de Oca, Malaise trap (MLPA). Other paratypes: 11 males, as follows: same data as holotype, 8 males; Parque Nacional Nahuel Huapi, mallin de los Patos, 41°15 ′ 48.6 ″ S, 71°17 ′ 50.3 ″ W, 1020 m; December 2006 to 23 January 2007, A. Garre – F. Montes de Oca, 3 males, Malaise trap. Remarks This species was described and illustrated in detail by Cazorla and Spinelli (2012b).Published as part of Cazorla, Carla G. & Spinelli, Gustavo R., 2014, A revision of the Patagonian predaceous midges of the subgenus Acanthohelea of Stilobezzia excluding the S. (A.) edwardsi group (Diptera: Ceratopogonidae), pp. 1-55 in Journal of Natural History 49 on pages 15-16, DOI: 10.1080/00222933.2014.93972
Stilobezzia (Acanthohelea) longisternalis Cazorla and Spinelli 2012
No full textStilobezzia (Acanthohelea) longisternalis Cazorla and Spinelli, 2012 (Figure 15C) Stilobezzia (Acanthohelea) longisternalis Cazorla and Spinelli, 2012b: 187 (male, female; Argentina); Borkent, 2014: 135 (in online World catalogue). Diagnosis The only Patagonian species of Stilobezzia (Acanthohelea) in which males have the sternite 9 with an elongate, slender posteromedian projection. Females scutum with 14 large and 13 thinner setae and the abdomen brown except the abdominal segment 8 heavily sclerotized. Distribution Argentina (Río Negro) (Figure 20). Types Holotype male, allotype female, Argentina, Río Negro prov., Parque Nacional Nahuel Huapi, arroyo Ñireco (Complejo Challhuaco), 41°11 ′ 51.9 ″ S, 71°19 ′ 40 ″ W, 962 m, 20 December 2006 to 23 January 2007, J. Massaferro – A. Garre – F. Montes de Oca, Malaise trap (MLPA). Other paratypes: 11 males, as follows: same data as holotype, 8 males; Parque Nacional Nahuel Huapi, mallin de los Patos, 41°15 ′ 48.6 ″ S, 71°17 ′ 50.3 ″ W, 1020 m; December 2006 to 23 January 2007, A. Garre – F. Montes de Oca, 3 males, Malaise trap. Remarks This species was described and illustrated in detail by Cazorla and Spinelli (2012b).Published as part of Cazorla, Carla G. & Spinelli, Gustavo R., 2014, A revision of the Patagonian predaceous midges of the subgenus Acanthohelea of Stilobezzia excluding the S. (A.) edwardsi group (Diptera: Ceratopogonidae), pp. 155-209 in Journal of Natural History 49 (3) on pages 169-170, DOI: 10.1080/00222933.2014.939728, http://zenodo.org/record/400262
Stilobezzia (Eukraiohelea) proxima Cazorla & Felippe-Bauer
No full textStilobezzia (Eukraiohelea) proxima Cazorla & Felippe-Bauer (Figs. 44–45) Stilobezzia (Eukraiohelea) proxima Cazorla & Felippe-Bauer in: Cazorla et al. 2017: 562 (male, female, Brazil); Borkent & Dominiak 2020: 177 (in Online World Catalog); Santarém & Felippe-Bauer 2022: 19 (Brazilian Catalog; distribution). Type. Holotype male, labeled: “ Stilobezzia (Eukraiohelea) proxima Cazorla & Felippe-Bauer, BRAZIL, Rio de Janeiro, Casimiro de Abreu, Union Biological Reserve (22°25′35″ S; 42°02′04″ W), 07.xi–13.xii.2013, “Biota Diptera Fluminense ” team col., Malaise trap ”, (CCER). Allotype female; paratypes: 1 male, same data as holotype (CCER), 1 male, 1 female same data except 25.viii–26.xi.2013 ”, (CCER). Material examined. BRAZIL, Amazonas, Manaus, Campina Biological Reserve, 02º36′19″ S – 60º02′11″ W, Malaise trap, 04–18.ix.2018, I.M. Da Silva and R.L. Ferreira-Keppler, 1 male; same data except 04–18.x.2018, 4 females. Comments. This Neotropical species was described by Cazorla & Felippe-Bauer (2017), and its type locality is in Rio de Janeiro, Brazil. We provide the first record of this species from the state of Amazonas, that was collected in the Campina Biological Reserve, in the rural region of Manaus.Published as part of Da Silva, Irene M., Ferreira-Keppler, Ruth L. & Cazorla, Carla G., 2023, Stilobezzia Kieffer (Diptera: Ceratopogonidae) from the Brazilian Amazon: three new species, redescription of S. (Stilobezzia) maculata Lane and new records, pp. 485-499 in Zootaxa 5249 (4) on page 494, DOI: 10.11646/zootaxa.5249.4.6, http://zenodo.org/record/769462
Stilobezzia (Stilobezzia) pseudopunctulata Cazorla & Ronderos
No full textStilobezzia (Stilobezzia) pseudopunctulata Cazorla & Ronderos Stilobezzia (Stilobezzia) punctulata Lane: Cazorla & Marino, 2004: 77 (misident., in part, specimens from Bolivia). Stilobezzia (Stilobezzia) pseudopunctulata Cazorla & Ronderos, 2012: 400 (male, female; Argentina and Bolivia; pupa; Brazil, Amazonas). Distribution Argentina (Chaco, Formosa, Corrientes and Buenos Aires provinces), Bolivia (Santa Cruz), Brazil (Amazonas). Material examined Brazil, Amazonas, Iranduba, Ilha da Marchantaria, Lago Grande, E. crassipes, P. stratiotes and S. auriculata, 27 July 2010, Marino, Díaz and Torreias, 1 female (reared in laboratory, with pupal exuvia). Comments This female specimen was identified and it was confirmed that it belongs to a new species from Brazil (Amazonas), Bolivia and northeastern Argentina that was described by Cazorla and Ronderos (Cazorla et al. 2012). Borkent and Spinelli (2007) recorded 69 Neotropical species of this worldwide genus, and nine more species were subsequently described. The habitat of the immature stages includes natural and artificial environments, and plantations (e.g. rice). There are few descriptions of the immature form of this genus (Cazorla et al. 2006, 2012), with only 13 species known from immature forms (one species from egg, 2 from larvae and 12 from pupae).Published as part of Torreias, S. R. S., Ferreira-Keppler, R. L. & Ronderos, M. M., 2013, Biting midges (Ceratopogonidae: Diptera) present in aquatic macrophytes from wetlands of Marchantaria Island, Iranduba, Central Amazonia, Brazil, pp. 109-122 in Journal of Natural History 48 (1 - 2) on page 118, DOI: 10.1080/00222933.2013.791934, http://zenodo.org/record/519873
Stilobezzia (Eukraiohelea) quasielegantula Cazorla & Felippe-Bauer 2017
No full text<i>Stilobezzia</i> (<i>Eukraiohelea</i>) <i>quasielegantula</i> Cazorla & Felippe-Bauer <p>(Fig. 46)</p> <p> <i>Stilobezzia</i> (<i>Eukraiohelea</i>) <i>quasielegantula</i> Cazorla & Felippe-Bauer 2017: in Cazorla <i>et al.</i> 2017: 566 (male, female, Brazil). Borkent & Dominiak 2020: 177 (in Online World Catalog); Santarém & Felippe-Bauer 2022: 19 (Brazilian biting midges Catalog; distribution).</p> <p> <b>Type</b>. Holotype male, labeled: “ <i>Stilobezzia</i> (<i>Eukraiohelea</i>) <i>quasielegantula</i> Cazorla & Felippe-Bauer, BRAZIL, Rio de Janeiro, Casimiro de Abreu, Union Biological Reserve (22°25′35″ S – 42°02′04″ W), 07.xi–13.xii.2013, “Biota Diptera Fluminense ” team col., Malaise trap ”, (CCER). Allotype female, 30 paratypes: 9 males, 8 females, same data as holotype (7 males, 6 females (CCER); 2 males, 2 females, (MLPA); 1 male, 1 female same data except 25.viii–26.xi.2013 (CCER).</p> <p> <b>Material examined</b>. BRAZIL, Amazonas, Manaus, Campina Biological Reserve; 02º36′19.01″ S <b>–</b> 60º02′11.74″ W, suspensa trap, 23.viii–04.ix.2018, I.M. Da Silva and R. L. Ferreira-Keppler, 1 male, 2 females; Campinarana, Malaise trap, 04–23.x.2018, 1 male.</p> <p> <b>Comments</b>. This Neotropical species was described by Cazorla & Felippe-Bauer (2017), with prior knowledge for the state of Rio de Janeiro, in Brazil. We provide the first record of this species from the state of Amazonas, that was collected in the Campina Biological Reserve located, in the rural region of Manaus.</p>Published as part of <i>Da Silva, Irene M., Ferreira-Keppler, Ruth L. & Cazorla, Carla G., 2023, Stilobezzia Kieffer (Diptera: Ceratopogonidae) from the Brazilian Amazon: three new species, redescription of S. (Stilobezzia) maculata Lane and new records, pp. 485-499 in Zootaxa 5249 (4)</i> on page 495, DOI: 10.11646/zootaxa.5249.4.6, <a href="http://zenodo.org/record/7694629">http://zenodo.org/record/7694629</a>
Stilobezzia (Acanthohelea) curvistyla Cazorla and Spinelli 2007
No full textStilobezzia (Acanthohelea) curvistyla Cazorla and Spinelli, 2007 (Figure 15A, B) Stilobezzia (Acanthohelea) curvistyla Cazorla and Spinelli, 2007: 182 (male, female, Argentina); Borkent, 2014: 134 (in online World catalogue). Diagnosis The only Patagonian species of Stilobezzia (Acanthohelea) in which the gonostylus is abruptly curved. Females scutellum with 6 large and 5 thinner setae, sternite 8 with lateral margins rounded and U-shaped posteromedian excavation. Distribution Argentina (Neuquen, Río Negro, Chubut), Chile (Valdivia, Llanquihue, Osorno) (Figure 16). Types Holotype male, Argentina, Chubut prov., Parque Nacional Los Alerces, margen E lago Futalaufquen, 20 January 1998, G. Spinelli; allotype female, Argentina, Neuquen prov., arroyo Quechuquina, 16 December 1994, G. Spinelli, sweep net (MLPA). Other paratypes: 11 males, 1 female, as follows: same data as holotype, 1 male; same data as allotype, 2 males; Neuquen prov., San Martín de los Andes, 23 April 1982, M. Gentili, 1 female, light trap; Río Negro prov., lago Gutiérrez, January 2003, J. Liotta, 1 male, light trap. Chile: Llanquihue prov., Las Cascadas, 13 km N Ensenada, Valdivian rain forest, 1–2 December 1994, L. Quate, Malaise trap, 6 males (one in CNCI, one in BMNH); same data except Yerbas Buenas, 1–6 June 1994, 150 m, 1 male, light trap. Other specimens examined Argentina: Neuquen prov., Parque Nacional Nahuel Huapi, mallin La Heladera, 41° 00 ′ 6.4 ″ S, 71°49 ′ 40.3 ″ W, 878 m, 7 January to 4 February 2007, A. Garré – F. Montes de Oca, 4 males, Malaise trap; same data except 41°00 ′ 56 ″ S, 71°49 ′ 45.4 ″ W, 15 December 2006 to 7 January 2007, A. Garré, F. Montes de Oca – J. Massaferro, 1 male; laguna Mercedes, 40°52 ′ 43.4 ″ S, 71°34 ′ 41 ″ W, 899 m, 3–21 January 2008, A. Garré – F. Montes de Oca, 1 female, Malaise trap; Parque Nacional Nahuel Huapi, arroyo Blanco, 40°39 ′ 3.4 ″ S, 71°24 ′ 45.8 ″ W, 822 m, 12 December 2007 to 3 January 2008, A. Garré – F. Montes de Oca, 2 females, 1 male, Malaise trap; Río Negro prov., Parque Nacional Nahuel Huapi, Estación Biológica, 41°01 ′ 34.4 ″ S, 71°48 ′ 55.7 ″ W, 764 m, 15 January to 7 February 2007, A. Garré – F. Montes de Oca, 1 male, Malaise trap; Río Negro prov., Parque Nacional Nahuel Huapi, río Manso superior, 41°14 ′ 28.4 ″ S, 71°44 ′ 12.6 ″ W, 837 m, 7 February to 2 March 2007, A. Garré – F. Montes de Oca, 1 male, Malaise trap. Chile: Valdivia prov., Fundo San Martín, 15 November 1984, J. A. Downes, 1 male, sweep net (JAD 1669/2/2; 1670/2/4) (CNCI); Osorno prov., Petrohue, 10 December 1984, J. A. Downes, 1 male, sweep net (JAD 1694/3/1) (CNCI); Ensenada, 11 December 1984, J. A. Downes, 2 males, sweep net (JAD1695/5/3,5) (CNCI); Parque Nacional Puyehue, 6/ 8 December 1994, L. Quate, 2 males, Malaise trap. Remarks This species was described and illustrated in detail by Cazorla and Spinelli (2007).Published as part of Cazorla, Carla G. & Spinelli, Gustavo R., 2014, A revision of the Patagonian predaceous midges of the subgenus Acanthohelea of Stilobezzia excluding the S. (A.) edwardsi group (Diptera: Ceratopogonidae), pp. 155-209 in Journal of Natural History 49 (3) on pages 163-164, DOI: 10.1080/00222933.2014.939728, http://zenodo.org/record/400262
Stilobezzia (Acanthohelea) curvistyla Cazorla and Spinelli 2007
No full text<i>Stilobezzia</i> (<i>Acanthohelea</i>) <i>curvistyla</i> Cazorla and Spinelli, 2007 <p>(Figure 15A, B)</p> <p> <i>Stilobezzia</i> (<i>Acanthohelea</i>) <i>curvistyla</i> Cazorla and Spinelli, 2007: 182 (male, female, Argentina); Borkent, 2014: 134 (in online World catalogue).</p> <i>Diagnosis</i> <p> The only Patagonian species of <i>Stilobezzia</i> (<i>Acanthohelea</i>) in which the gonostylus is abruptly curved. Females scutellum with 6 large and 5 thinner setae, sternite 8 with lateral margins rounded and U-shaped posteromedian excavation.</p> <i>Distribution</i> <p>Argentina (Neuquen, Río Negro, Chubut), Chile (Valdivia, Llanquihue, Osorno) (Figure 16).</p> <i>Types</i> <p>Holotype male, Argentina, Chubut prov., Parque Nacional Los Alerces, margen E lago Futalaufquen, 20 January 1998, G. Spinelli; allotype female, Argentina, Neuquen prov., arroyo Quechuquina, 16 December 1994, G. Spinelli, sweep net (MLPA). Other paratypes: 11 males, 1 female, as follows: same data as holotype, 1 male; same data as allotype, 2 males; Neuquen prov., San Martín de los Andes, 23 April 1982, M. Gentili, 1 female, light trap; Río Negro prov., lago Gutiérrez, January 2003, J. Liotta, 1 male, light trap.</p> <p>Chile: Llanquihue prov., Las Cascadas, 13 km N Ensenada, Valdivian rain forest, 1–2 December 1994, L. Quate, Malaise trap, 6 males (one in CNCI, one in BMNH); same data except Yerbas Buenas, 1–6 June 1994, 150 m, 1 male, light trap.</p> <i>Other specimens examined</i> <p> Argentina: Neuquen prov., Parque Nacional Nahuel Huapi, mallin La Heladera, 41° 00 <i>′</i> 6.4 <i>″</i> S, 71°49 <i>′</i> 40.3 <i>″</i> W, 878 m, 7 January to 4 February 2007, A. Garré – F. Montes de Oca, 4 males, Malaise trap; same data except 41°00 <i>′</i> 56 <i>″</i> S, 71°49 <i>′</i> 45.4 <i>″</i> W, 15 December 2006 to 7 January 2007, A. Garré, F. Montes de Oca – J. Massaferro, 1 male; laguna Mercedes, 40°52 <i>′</i> 43.4 <i>″</i> S, 71°34 <i>′</i> 41 <i>″</i> W, 899 m, 3–21 January 2008, A. Garré – F. Montes de Oca, 1 female, Malaise trap; Parque Nacional Nahuel Huapi, arroyo Blanco, 40°39 <i>′</i> 3.4 <i>″</i> S, 71°24 <i>′</i> 45.8 <i>″</i> W, 822 m, 12 December 2007 to 3 January 2008, A. Garré – F. Montes de Oca, 2 females, 1 male, Malaise trap; Río Negro prov., Parque Nacional Nahuel Huapi, Estación Biológica, 41°01 <i>′</i> 34.4 <i>″</i> S, 71°48 <i>′</i> 55.7 <i>″</i> W, 764 m, 15 January to 7 February 2007, A. Garré – F. Montes de Oca, 1 male, Malaise trap; Río Negro prov., Parque Nacional Nahuel Huapi, río Manso superior, 41°14 <i>′</i> 28.4 <i>″</i> S, 71°44 <i>′</i> 12.6 <i>″</i> W, 837 m, 7 February to 2 March 2007, A. Garré – F. Montes de Oca, 1 male, Malaise trap.</p> <p>Chile: Valdivia prov., Fundo San Martín, 15 November 1984, J. A. Downes, 1 male, sweep net (JAD 1669/2/2; 1670/2/4) (CNCI); Osorno prov., Petrohue, 10 December 1984, J. A. Downes, 1 male, sweep net (JAD 1694/3/1) (CNCI); Ensenada, 11 December 1984, J. A. Downes, 2 males, sweep net (JAD1695/5/3,5) (CNCI); Parque Nacional Puyehue, 6/ 8 December 1994, L. Quate, 2 males, Malaise trap.</p> <i>Remarks</i> <p>This species was described and illustrated in detail by Cazorla and Spinelli (2007).</p>Published as part of <i>Cazorla, Carla G. & Spinelli, Gustavo R., 2014, A revision of the Patagonian predaceous midges of the subgenus Acanthohelea of Stilobezzia excluding the S. (A.) edwardsi group (Diptera: Ceratopogonidae), pp. 1-55 in Journal of Natural History 49</i> on pages 9-10, DOI: 10.1080/00222933.2014.939728, <a href="http://zenodo.org/record/10830709">http://zenodo.org/record/10830709</a>
Plane extraction and error modeling of 3D data
No full textWe are interested in using natural landmarks obtained by a stereo system not only in SLAM-like algorithms but also feature extraction, map building, and so on. Using a
stereo camera we can extract planes and geometrical primitives like that. In order to use these primitives a perceptual model of
landmarks is needed, due to error model can improve the results. In this paper we present a method to get the perceptual model of the plane extraction process. We will show that the use of this model improves the results and some points about its possible use are detailed.This work has been supported by project GV06/134 from Generalitat Valenciana (Spain) and project DPI2005-01280 from Ministerio de Educación y Ciencia (Spain)
Stilobezzia (Acanthohelea) pabloi Cazorla and Spinelli 2014, sp. nov.
No full textStilobezzia (Acanthohelea) pabloi Cazorla and Spinelli sp. nov. (Figures 8, 21) Diagnosis The only Patagonian species of Stilobezzia (Acanthohelea) with stout aedeagal sclerites, broadening distally with small mesal notch. Female unknown. Male. Head (Figure 8A). Dark brown. Antennal flagellum brown, flagellomeres 1–10 with pale ring above the plume; plume brown, poorly developed; antennal ratio1.56– 1.65 (1.60, n = 2). Palpus brown; segment 3 slightly shorter than 5; palpal ratio 3.75– 4.00 (3.87, n = 2). Thorax (Figure 8C). Scutum dark brown, humeral pits pale brown; scutellum pale brown with 6 large setae; postscutellum dark brown; pleura dark brown. Legs brown, hind leg slightly darker; prothoracic TR 1.80–2.11 (2.00, n = 2); mesothoracic TR 2.05–2.10 (2.07, n = 2); metathoracic TR 2.10–2.22 (2.16, n = 2). Wing (Figure 8B) length 1.58–2.10 (1.84, n = 2) mm, width 0.60 mm (n = 2), costal ratio 0.72–0.74 (0.73, n = 2); membrane slightly infuscated; second radial cell 2.16× longer than first; cubital fork originating distal to base of r-m cross vein; macrotrichia on costa, R 1, R 2, R 3, sparse on distal margin of r 3, abundant on apex of m 1. Halter pale brown. Abdomen. Dark brown. Genitalia (Figure 8D): tergite 9 extending 0.70 of gonocoxites length, slender, triangular, posterior margin blunt; sternite 9 short, distal margin apparently without posteromedian excavation; sternite 10 spiculate, not produced beyond base of cerci; cerci directed laterad. Gonocoxite stout, 1.80× longer than greatest breadth; gonostylus curved, base stout, slightly narrowing to pointed tip. Parameres divergent; basal apodemes curved; stems contiguous proximally, then slightly divergent, swollen at mid portion, tip ladleshaped. Aedeagus 0.65× length of basal breadth, composed of two sinuous sclerites, each progressively broadening distally, tip sclerotized with small mesal notch. Female. unknown. Distribution Argentina (Neuquen) (Figure 21). Types Holotype male, Argentina, Neuquen, Laguna Epulafquen, 21–23 February 2001, G. Spinelli, Malaise trap (MLPA). Paratype, 1 male, same data as holotype. Etymology This species is named after Dr Pablo Marino, colleague and friend of the Museo de La Plata. Discussion This species is similar to S. (A.) mapuche. The latter species differs by the gonostylus greatly curved subbasally over 90° and the aedeagal sclerites with subapical pointed divergent prongs arising from a common base, the proximal one directed laterad and the distal one directed distad.Published as part of Cazorla, Carla G. & Spinelli, Gustavo R., 2014, A revision of the Patagonian predaceous midges of the subgenus Acanthohelea of Stilobezzia excluding the S. (A.) edwardsi group (Diptera: Ceratopogonidae), pp. 155-209 in Journal of Natural History 49 (3) on pages 182-183, DOI: 10.1080/00222933.2014.939728, http://zenodo.org/record/400262
Stilobezzia (Acanthohelea) mapuche , Cazorla and Spinelli 2014, sp. nov.
No full textStilobezzia (Acanthohelea) mapuche, Cazorla and Spinelli sp. nov. (Figures 4, 18) Diagnosis The only Patagonian species of Stilobezzia (Acanthohelea) with gonostylus greatly curved subbasally over 90°, aedeagal sclerites heavily sclerotized, slender to mid length and the distal half broadening abruptly and mesally directed with subapical pointed divergent prongs. Female unknown. Male. Head (Figure 4A). Dark brown. Antennal flagellum brown, plume dark brown, dense; flagellomeres 1–10 with pale ring above the insertions of the plume setae; antennal ratio 1.51–1.75 (1.58, n = 5). Palpus brown; segment 3 as long as 5; palpal ratio 3.00–3.50 (3.20, n = 6). Thorax. Scutum uniformly dark brown; scutellum pale with 6 large setae; postscutellum dark brown. Legs brown, hind leg slightly darker than mid and forelegs; hind tibial comb with 8 spines; prothoracic TR 1.70–1.87 (1.79, n = 8); mesothoracic TR 1.91–2.10 (2.02, n = 8); metathoracic TR 1.72–2.00 (1.86, n = 8). Wing (Figure 4B) length 1.39–1.66 (1.50, n = 10) mm, width 0.49–0.58 (0.54, n = 10), costal ratio 0.68–0.73 (0.71, n = 10); membrane slightly infuscated; second radial cell 2.41–3.36 (2.78, n = 8) × longer than first; cubital fork originating slightly distal to level of base of r-m cross vein; macrotrichia on costa, R 1, R 2, R 3, M 1, M 2, Cua 2, sparse on distal 1/ 3 of cells r 3, m 1, m 2. Halter pale brown. Abdomen. Dark brown. Genitalia (Figure 4C): tergite 9 triangular, tapering abruptly distally, extending 0.80 length of gonocoxites, posterior margin rounded; sternite 9 2.45× broader than long, posterior margin straight; sternite 10 triangular, margins wrinkled, produced beyond base of cerci; cerci moderately slender, broadly divergent. Gonocoxite 2.05× longer than greatest breadth; gonostylus 0.72× length of gonocoxite, base stout, greatly curved subbasally over 90°, tip pointed. Parameres subparallel; basal apodemes slender, stem stout, tip bulbous. Aedeagus 0.77× length of basal breadth, composed of two convergent sclerites, each with stem slightly curved, heavily sclerotized, slender to mid length, distal half broadening abruptly, directed mesally with subapical pointed divergent prongs arising from common base, proximal prong directed laterad, distal one directed distad. Female. unknown. Distribution Argentina (Neuquen, Río Negro), Chile (Santiago) (Figure 18). Types Holotype male, Argentina, Río Negro prov., Parque Nacional Nahuel Huapi, río Manso superior, 41°14 ′ 28.4 ″ S, 71°44 ′ 12.6 ″ W, 837 m, 7 February to 2 March 2007, A. Garré- F. Montes de Oca, Malaise trap (MLPA). Paratypes: 15 males, as follows: same data as holotype, 2 males (one in CNCI, one in USNM); same data except 41° 14 ′ 814 ″ S, 71°46 ′ 58.5 ″ W, 845 m, 2 males; laguna Los Clavos, 41°04 ′ 48.6 ″ S, 71°49 ′ 33.9 ″ W, 1194 m, 5 February to 3 March 2007, A. Garré – F. Montes de Oca, 3 males (one in BMNH), Malaise trap; Parque Nacional Nahuel Huapi, laguna Mercedes, 40°52 ′ 43.4 ″ S, 71°34 ′ 41 ″ W, 899 m, 3–21 January 2008, A. Garré – F. Montes de Oca, 1 male, Malaise trap; Neuquen prov., Parque Nacional Nahuel Huapi, mallin La Heladera, 41°00 ′ 6.4 ″ S, 71°49 ′ 40.3 ″ W, 878 m, 7 January to 4 February 2007, A. Garré – F. Montes de Oca, 6 males, Malaise trap; Chile. Santiago prov., Quebrada de La Plata, Maipú 33°30 ′ S, 70°55 ′ W, 26 April 1966, M. E. Irwin, 1 male, Malaise trap. Etymology The name mapuche refers to Mapuche Indians, early inhabitants of southern and central Chile and north-western Argentinean Patagonia. Discussion This species is somewhat similar to S. (A.) pabloi. The latter species is clearly distinguishable by the aedeagal sclerites with sclerotized tip with a small mesal notch.Published as part of Cazorla, Carla G. & Spinelli, Gustavo R., 2014, A revision of the Patagonian predaceous midges of the subgenus Acanthohelea of Stilobezzia excluding the S. (A.) edwardsi group (Diptera: Ceratopogonidae), pp. 155-209 in Journal of Natural History 49 (3) on pages 170-172, DOI: 10.1080/00222933.2014.939728, http://zenodo.org/record/400262
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