This study deals with the diversity, relative abundance and seasonality of sandflies species in two modified primary forest fragments, situated at São Luís city, capital of the state of Maranhão. The sandflies were captured with the use of light traps, CDC (Center Control Disease) type, installed at the edge and in the center of the forest, at the height of 1.5 meter, being there from 6 p.m. up to 6 a.m., once per month, during a year time. An amount of 1,356 specimens from 23 species, which 21 belonged to genera Lutzomyia and two belonged to genera Brumptomyia, were captured. In the Sacavém forest reserve, 1,061 specimens were captured, resulting in a capture effort of 2.5 individuals/hour/trap, most of them L. longipalpis (44.8%), followed by L. antunesi (36.4%), L. sordelli (5.9%), L. flaviscutellata (3.9%) and L. whitmani (2.1%). The highest concentrations of species (11) and individuals (60.1%) occurred during the rainy period. In the Itaqui forest reserve, 295 specimens were collected and the capture effort was 0.2 individuals/hour/trap, most of them were L. flaviscutellata, (58.6%), L. sordelli (14.6%), L. longipalpis (7.1%), L. evandroi (6.4%), L. longipennis (3%), L. trinidadensis (2.7%) and L. whitmani (1.7%). The species were more frequent during the dry season (11) and specimens during the rainy spell (54.6%).
Amazonia; Ecology; Forest fragments
