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Redalyc.Nuevas Citas De Trichoptera Para La Patagonia Argentina Revista de la Sociedad Entomológica Argentina ISSN: 0373-5680 [email protected] Sociedad Entomológica Argentina Argentina BRAND, Cecilia Nuevas citas de Trichoptera para la Patagonia argentina Revista de la Sociedad Entomológica Argentina, vol. 68, núm. 1-2, 2009, pp. 223-226 Sociedad Entomológica Argentina Buenos Aires, Argentina Disponible en: http://www.redalyc.org/articulo.oa?id=322028484018 Cómo citar el artículo Número completo Sistema de Información Científica Más información del artículo Red de Revistas Científicas de América Latina, el Caribe, España y Portugal Página de la revista en redalyc.org Proyecto académico sin fines de lucro, desarrollado bajo la iniciativa de acceso abierto ISSN 0373-5680 Rev. Soc. Entomol. Argent. 68 (1-2): 223-226, 2009 223 NOTA CIENTÍFICA Nuevas citas de Trichoptera para la Patagonia argentina BRAND, Cecilia Laboratorio de Investigaciones en Ecología y Sistemática Animal. CONICET. Universidad Nacional de la Patagonia “SJB”. Sarmiento 849. CP 9200. Esquel, Chubut. Argentina; e-mail: [email protected] New records of Trichoptera for Argentinean Patagonia ABSTRACT. The present paper provides 9 new records of Trichoptera species, for Northwestern Patagonia, Argentina. The family Tasimiidae and Verger affinis (Schmid), V. bispinus (Schmid) and V. obliquus (Schmid) (Limnephilidae) are cited for Argentina for the first time. The distribution of some species of Helicophidae, Hydrobiosidae, Limnephilidae and Philorheithridae is updated. KEY WORDS. Caddisflies. Trichoptera. New Records. Andean region. Patagonia. RESUMEN. La presente nota informa sobre 9 nuevos registros de especies de Trichoptera para el noroeste de la Patagonia argentina. La familia Tasimiidae y Verger affinis (Schmid), V. bispinus (Schmid) y V. obliquus (Schmid) (Limnephilidae) se citan por primera vez para la Argentina. Se actualiza la distribución de especies pertenecientes a las familias Helicophidae, Hydrobiosidae, Limnephilidae y Philorheithridae. PALABRAS CLAVE. Trichoptera. Nuevos registros. Región Andina. Patagonia. Como resultado de dos años de muestreos y Limnephilidae, y se detallan nuevas en el Noroeste de la Provincia de Chubut, localidades de distribución de Psilopsyche realizados por el LIESA-UNPSJB, y muestreos molinai (Philorheithridae) y Verger intensivos en el Parque Nacional Nahuel appendiculatus (Limnephilidae). Se incluyen Huapi, llevados a cabo en el marco de un comentarios de distribución y se realiza una proyecto financiado por la Darwin Initiative caracterización ambiental de los sitios de Project, Natural History Museum, London, se colecta. informan nuevos registros de la distribución de 11 especies de tricópteros. A la fecha, se citan Familia Helicophidae 14 familias y aproximadamente 300 especies para la Argentina (Angrisano & Korob, 2001). Austrocentrus valgiformis Flint, 1997 En este trabajo y con motivo de actualizar la El género Austrocentrus Schmid, cuenta con presencia y distribución del orden, se citan tres especies de las cuales sólo A. valgiformis por primera vez para la Argentina la familia se encuentra citada para nuestro país. Estos Tasimiidae y 3 especies pertenecientes a la registros abarcan localidades del oeste de familia Limnephilidae. Asimismo, se amplía la provincia de Neuquén (Flint, 1997). En la distribución de especies pertenecientes este trabajo, se amplía la distribución de a las familias Helicophidae, Hydrobiosidae esta especie a las provincias de Río Negro Recibido: 16-XII-2008; aceptado: 25-III-2009 224 Rev. Soc. Entomol. Argent. 68 (1-2): 223-226, 2009 y Chubut. Los distintos especímenes se entomológica durante el día en la vegetación colectaron tanto en ríos como en arroyos ribereña (principalmente sauces, Salix spp.) de flujo moderado y permanente, con agua de cursos de agua permanentes. clara y sustrato rocoso. Nuevas localidades: Chubut: Aº Nant y Nuevas localidades: Río Negro: Río Fall, S 43°13´24”, O 71°25´17”, 690 msnm, Ñirihuau, S 41º 17’ 35.6’’, O 71º 14’ 7-XI-2006, 2 machos. Aº Poncho Moro 28.5’’, 1.048 msnm, 28-II-07, 1 larva. Aº confluencia con Río Corcovado, 15-III-2007, Ñireco, S 41º11’51.9”, O 71º19’40.5”, 962 3 machos, 2 hembras. m.s.n.m., 23-I-07, 1 larva. Challhuaco, Aº Verde, S 41º15’41.9”, O 71º17’49.2”, 1.510 Familia Sericostomatidae m.s.n.m. 10-XII-06, 1 larva. Chubut: Aº Golondrinas, S 41º59´33”, O 71°33´25”, Parasericostoma cristatum Flint, 1983 361 m.s.n.m., numerosas larvas colectadas Citada sólo para las provincias de Neuquén entre los meses de mayo 2005 y marzo 2006. y Río Negro (Valverde & Albariño, 1999), Estación Experimental Agroforestal Esquel, se extiende la distribución a la provincia Campo experimental Trevelin, Aº Blanco, de Chubut. Las larvas de P. cristatum se S 43°07´38”, O 71°33´30”, 368 m.s.n.m., colectaron en arroyos sombreados con flujo larvas colectadas en marzo 2006. Aº sin turbulento, agua clara y sustrato rocoso. nombre intersección con Ruta 17, Valle Nuevas localidades: Chubut: Aº Loro, Río Frío, S 43°21´43”, O 71°30´22”, 670 S 43°44´09”, O 71°23´58”, 820 m.s.n.m., m.s.n.m., numerosas larvas colectadas entre numerosas larvas colectadas entre mayo mayo y diciembre de 2005. Aº Comisario, 2005 y marzo 2006. Aº sin nombre en S 43°44´45”, O 71°23´32”, 770 m.s.n.m., intersección con Ruta 17, Valle Río Frío, S larvas colectadas en marzo 2006. Aº Loro, 43°21´43”, O 71°30´22”, 670 m.s.n.m., S 43°44´09”, O 71°23´58”, 820 m.s.n.m., V-2005, numerosas larvas. numerosas larvas colectadas entre mayo y diciembre de 2005. Familia Limnephilidae Familia Hydrobiosidae El género Verger Navás es el representante de la familia en la región Andina con mayor Cailloma rotunda Flint, 1967 cantidad de especies descriptas, la mayoría Esta especie sólo ha sido citada para la de ellas distribuidas en la región cordillerana provincia de Tierra del Fuego (Flint, 1974b). (Flint, 1982; Angrisano & Korob, 2001). Se amplía su distribución a las provincias de Río Negro y Chubut. Las colectas se Verger affinis (Schmid, 1955) realizaron en arroyos y ríos permanentes Esta especie se encuentra registrada sólo de poca profundidad, con flujo moderado y para Chile (Flint, 1974a). Aquí se cita por sustrato rocoso. primera vez para la provincia de Río Negro Nuevas localidades: Río Negro: Río Manso y constituye el primer registro para nuestro Superior. S 41º14’28.4”, O 71º44’12.6”, país. Los especímenes adultos se colectaron 16-I-07, 6 larvas. Chubut: Aº sin nombre en la vegetación circundante de las lagunas en intersección con Ruta 17, Valle Río Frío, de altura. S 43°21´43”, O 71°30´22”, 670 m.s.n.m., Nuevas localidades: Río Negro: Puerto V-2005, 1 larva. Aº Nant y Fall, S 43°13´24”, Blest, Lago Cántaros, S 41º 00’ 39.3’’, O 71º O 71°25´17”, 690 m.s.n.m., XII-2006, 1 larva. 49’ 6.6’’, 895 m.s.n.m., 13-I-07, 2 machos. Puerto Blest, Laguna Los Clavos, S 41º 2’ Metachorema griseum Schmid, 1957 48.6’’, O 71º 49’ 33.9’’, 1.194 m.s.n.m., 5-II- Citada sólo para la provincia de Neuquén 07 al 3-III-07, numerosos machos. (Bravo & Angrisano, 2003). Se la cita por primera vez para la provincia de Chubut. Verger appendiculatus (Ulmer, 1904) Los adultos fueron colectados con red Especie citada previamente para Chile BRAND, C. Nuevas citas de Trichoptera en Patagonia 225 (Angrisano, 1983) y desde Neuquén hasta de 2008. Río Corcovado, Ea. El Palenque, Tierra del Fuego (Angrisano, 1998). Sin 15-III-2007, 1 hembra. embargo, dado que en la bibliografía previa no se detallan las localidades de los Verger obliquus (Schmid, 1955) registros en dichas provincias, en la presente Sólo registrada para el territorio chileno (Flint, contribución se mencionan sitios específicos 1974a), se cita aquí por primera vez para la de colecta en Río Negro. Los adultos se Argentina. Los individuos se colectaron con colectaron en torno a ríos y arroyos de flujo trampas Malaise en ambientes adyacentes a lento y moderado, con vegetación ribereña lagunas y ríos, en matorrales de ñire. compuesta por ñire (Nothofagus antarctica) Nuevas localidades: Río Negro: Mallín de altura. La Cortadera, S 41º05’13”, O 71º48’26”, Nuevas localidades: Río Negro: Aº 769 m.s.n.m., 8-I-07 al 3-II-07, 1 macho. Challhuaco, S 41º 15’ 30’’, O 71º 17’ 06’’, Río Manso Superior, S 41º14’28.4”, O 20-XII-06 al 23-I-07, 1 macho. Río Manso 71º44’12.6”, 7-II-07 al 2-III-07, 2 machos. Superior, Pampa Linda, S 41º14’28.4”, O 71º44’12.6”, 15-I-07, 1 macho. Río Familia Philorheithridae Manso Medio, La Cantera, S 41º21’16”, O 71º42’27.3”, 764 m.s.n.m., 15-I-07 al 7-II- Psilopsyche molinai Navás, 1926 07, 2 machos. Philorheithridae está representada en la región Andina por dos géneros endémicos, Verger bispinus (Schmid, 1957) Mystacopsyche Schmid y Psilopsyche Especie citada anteriormente para Chile Ulmer (Flint et al., 1999). Especies de ambos (Schmid, 1958). Constituye éste su primer géneros se encuentran citadas para las registro para el territorio argentino. Los adultos provincias de Chubut, Río Negro, Neuquén se colectaron en la vegetación ribereña y Chile (Angrisano, 1998). Sin embargo, en en arroyos de cabecera, principalmente la bibliografía mencionada no se especifican compuesta por coihues (Nothofagus los sitios de colecta, por lo tanto aquí se dombeyi). brinda información detallada de sitios Nuevas localidades: Río Negro: Aº Ñireco, específicos donde se registra P. molinai. Los S 41º11’51.9”, O 71º19’40.5”, 962 m.s.n.m., adultos se colectaron con red entomológica 23-I-07 al 18-II-07 y 13-II-07 al 28-II-07, en cercanías de arroyos de agua clara y numerosos adultos machos.
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