SZELAG Enrique Alejandro
congresos y reuniones científicas
Update on Phlebotominae fauna from the Chaco region, Argentina
ENRIQUE A. SZELAG; JOSÉ D ANDRADE FILHO; JUAN R ROSA; MARÍA G. QUINTANA; OSCAR D. SALOMÓN
Simposio; 9th International Symposium on Phlebotomine Sandflies (ISOPS IX); 2016
Université de Reims Champagne Ardenne
Previous studies showed that the Phlebotominae fauna in Argentina consists of 31 species distributed in 14 of the 24 provinces. This work aims to provide an update on the Phlebotominae fauna and species distribution in the Chacoan region. Biogeographically, the Chaco region is divided by its annual rainfall gradient into two clearly differentiated subregions: the Eastern region (Wet Chaco) and the Western region (Dry Chaco). The first presents a damp Atlantic rainfall pattern where biomes form parks and savanna with abundant rainfall in summer and fall. On the other hand, the Western region has a dry continental and semi-arid rainfall pattern. Captures were conducted monthly in the two biogeographic regions using CDC miniature light placed 1.5 m above the ground, and operating for 12 h (from 7 pm to 7 am). In Western Chaco region, captures were made during the period 2006?2008 for two consecutive nights each month in Nueva Población (S24°5801800?W61°2102500). In the Eastern Chaco region, captures were made monthly for overnight from 2009 to 2013 in the towns of Margarita Belen (S27°2603400?W58°5401300), Colonia Benitez (S27°1901600?W58°5905300), Resistencia (S27°1604800?W59°1 01100), Tres Isletas (S26°2002400?W60°2505200). In the Transitional Area (Wet Chaco/Dry Chaco) of Pampa del Indio (S25°52029.900; W59°49025.500), monthly collections for two consecutive nights were made from 2013 to 2015. At each collection site, three light traps were set, one intradomicilary, one extradomicilary and one in a nearby peridomestic habitat. Species previously recorded for Argentina: Brumptomyia avellari, Br. brumpti, Br. guimaraesi, Br. pintoi, Evandromyia evandroi, Ev. cortelezzii, Ev. sallesi, Expapillata firmatoi, Micropygomyia oswaldoi, Mi. peresi, Mi. quinquefer, Migonemyia migonei, Martinsmyia alphabetica, Nyssomyia neivai, Ny. whitmani, Lutzomyia longipalpis, Oligodontomyia spp., Pintomyia J. Depaquit et al.: Parasite 2016, 23, E1 19 bianchigalatiae, Pi. fischeri, Pi. pessoai, Pi. misionensis, Pi. monticola, Pi. torresi, Pi. damascenoi, Psathyromyia pascalei, Pa. lanei, Pa. punctigeniculata, Pa. baratai, Pa. bigeniculata, Sciopemyia sordellii, Trichophoromyia auraensis. New records for Argentina: ? Ev. aldafalcaoae Margarita Belén: 1 male 06-II-2012; Resistencia: 1 male 04-XII-2013. Pampa del Indio: 1 male, 2 females 10-I-2013; 1 male, 1 female 11-III-2014; 4 males, 3 females 09-IV-2015. Caught in peridomestic site (associated with kennels and pigsty), intradomestic site (veranda) and edge of forest. ? Ev. corumbaensis: Colonia Benítez: 1 male 19-III-2012; Resistencia: 2 males 09-IV-12 and 17-I-2013. Western biogeographic region ? Nueva Población: 7 males 21-XI-2006, 09-I-2007, 21-III-2007, 01-X-2007 and 13-XII-2007; 8 females 25-IV-2007, 01-X-2007, 13-XII-2007 and 15-XII-2008, captured in peridomestic and extradomestic sites. ? Ev. termitophila: Nueva Población: 1 male 10-X-2008; Tres Isletas: 1 female 04-IV- 2011, captured in intradomestic site and peridomestic sites associated with a pigsty and a henhouse. New record for Chaco: Pa. bigeniculata: Margarita Belen, 6 males 15-XII-2011, 2 males 27-III-2013 captured in peridomestic (pigsty and henhouse) and extradomestic sites. These new records extend the southern limit of known distribution for these species, including the southernmost record on the continent, and also extend the total number of known species in the country to 34.