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Memórias do Instituto Oswaldo Cruz
Fundação Oswaldo Cruz, Fiocruz
ISSN: 1678-8060
EISSN: 1678-8060
Vol. 103, No. 8, 2008, pp. 760-767
Bioline Code: oc08137
Full paper language: English
Document type: Research Article
Document available free of charge

Memórias do Instituto Oswaldo Cruz, Vol. 103, No. 8, 2008, pp. 760-767

 en Studies on the Sandfly Fauna (Diptera: Psychodidae: Phlebotominae) From Transmission Areas of American Cutaneous Leishmaniasis in State of Acre, Brazil
Azevedo, Alfredo C.R.; Costa, Simone M.; Pinto, Maria C.G.; Souza, Janis L.; Cruz, Henrique C.; Vidal, Joaquim & Rangel, Elizabeth F.

Abstract

Studies were undertaken on the phlebotomines in the municipalities of Bujari, Xapuri and Rio Branco in the state of Acre. The abundance of species on the ground and in the tree canopy was estimated by Standardized Index of Species Abundance. Of the 52 species identified, Lutzomyia (N.) antunesi check for this species in other resources , Lutzomyia (N.) whitmani check for this species in other resources , Lutzomyia (P.) davisi check for this species in other resources , Lutzomyia migonei check for this species in other resources , Lutzomyia (N.) umbratilis check for this species in other resources , Lutzomyia (N.) flaviscutellata check for this species in other resources , Lutzomyia (T.) ubiqui-talis, Lutzomyia (P.) hirsuta hirsuta check for this species in other resources , Lutzomyia (P.) paraensis check for this species in other resources and Lutzomyia (P.) ayrozai check for this species in other resources are known to be vectors of Leishmania, the causative agent of American cutaneous leishmaniasis. Lutzomyia (T.) auraensis, Lu. (N.) antunesi, Lu. (N.) whitmani and Lu. (P.) davisi accounted for 66.95% of the specimens collected. Lu. (N.) whitmani was the most abundant species, followed by Lu. (N.) antunesi and Lu. (P.) davisi. Lu. (N.) antunesi was the most abundant species in the soil as well as in the canopy. Lu. (N.) umbratilis occurred in all three municipalities and was the fifth most abundant species in the Chico Mendes Municipal Park in Rio Branco. It was collected on both the ground level as well as in the canopy; however, it was more frequently collected in the tree canopy. The present study suggests the existence of three transmission cycles of Leishmania in Acre, including the transmission of Leishmania (V.) guyanensis by Lu. (N.) umbratilis south of the Amazon River.

Keywords
Phlebotomine fauna - Lutzomyia - vector ecology - American Cutaneous Leishmaniasis - state of Acre - Brazil

 
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