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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 108, No. 5, 2013, pp. 578-585
Bioline Code: oc13100
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 108, No. 5, 2013, pp. 578-585

 en The phlebotomine fauna (Diptera: Psychodidae) of Guaraí, state of Tocantins, with an emphasis on the putative vectors of American cutaneous leishmaniasis in rural settlement and periurban areas
Vilela, Maurício Luiz; de Pita-Pereira, Daniela; Azevedo, Carina Graser; Godoy, Rodrigo Espíndola; Britto, Constança & Rangel, Elizabeth Ferreira

Abstract

Phlebotomine sandflies were captured in rural settlement and periurban areas of the municipality of Guaraí in the state of Tocantins (TO), an endemic area of American cutaneous leishmaniasis (ACL). Forty-three phlebotomine species were identified, nine of which have already been recognised as ACL vectors. Eleven species were recorded for the first time in TO. Nyssomyia whitmani check for this species in other resources was the most abundant species, followed by Evandromyia bourrouli check for this species in other resources , Nyssomyia antunesi check for this species in other resources and Psychodopygus complexus check for this species in other resources . The Shannon-Wiener diversity index and the evenness index were higher in the rural settlement area than in the periurban area. The evaluation of different ecotopes within the rural area showed the highest frequencies of Ev. bourrouli and Ny. antunesi in chicken coops, whereas Ny. whitmani predominated in this ecotope in the periurban area. In the rural settlement area, Ev. bourrouli was the most frequently captured species in automatic light traps and Ps. complexus was the most prevalent in Shannon trap captures. The rural settlement environment exhibited greater phlebotomine biodiversity than the periurban area. Ps. complexus and Psychodopygus ayrozai check for this species in other resources naturally infected with Leishmania (Viannia) braziliensis check for this species in other resources were identified. The data identified Ny. whitmani as a potential ACL vector in the periurban area, whereas Ps. complexus was more prevalent in the rural environment associated with settlements.

Keywords
phlebotomine fauna; Nyssomyia whitmani; Psychodopygus complexus; Leishmania vectors

 
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