Resumo

CHARTIER, Diego I.  e  CROCCO, Liliana B.. Survey of Chagas disease vectors over peridomiciles of the Ayacucho department rural area, province of San Luis, Argentina. Rev. Soc. Entomol. Argent. [online]. 2007, vol.66, n.1-2, pp.181-185. ISSN 0373-5680.

Due to the importance of peridomestic populations in the reinfestation process of the domicile, the aim of this work was to evaluate the presence of triatomines in peridomiciles located in the San Francisco del Monte de Oro community, Ayacucho dept., Argentina. The presence of triatomines was evaluated in 18 peridomiciles between the months of October to March (2003/2004). The type of construction, host and number of triatomines were recorded for each peridomestic annex. The captured triatomines were taxonomically classified and their infectivity recorded. The 98.3 % of the triatomines corresponded to the species Triatoma infestans (Klug). The 79.3 % of the evaluated annex were found positive. The infestation indexes for goat corrals and chicken coops were 94.4 % and 54.5 %, respectively. There were no insects infected with Trypanosoma cruzi (Chagas). The corrals were differentiated in: stone pile, palisade and wood pile. Stone pile corrals showed larger number of triatomines than the palisade corrals (p< 0,05) Stone pile corrals seem to offer an adequate shelter for triatomines, probably due to the high number of empty spaces that offer and a higher difficulty for chemical control.

Palavras-chave : Peridomestic vectors; Triatomines; Infestation; Triatoma infestans.

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