Cadernos de Saúde Pública
On-line version ISSN 1678-4464
REBELO, José Manuel Macário. Hourly frequency and seasonality of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae) on São Luís Island, Maranhão, Brazil. Cad. Saúde Pública [online]. 2001, vol.17, n.1, pp. 221-227. ISSN 1678-4464. http://dx.doi.org/10.1590/S0102-311X2001000100023.
This article presents the hourly and seasonal distribution of the Lutzomyia longipalpis sand fly captured on São Luís Island, Maranhão State. A total of 11,200 specimens were captured during monthly use of CDC light traps indoors and in animal sheds, between 6:00 PM and 6:00 AM, in 1996 and 1997. The sand fly behaved as an annual species, with a high frequency year-round, while it was most abundant during the rainy season (57.2%) as compared to the dry season (42.8%). The highest frequencies during the rainy season occurred in January and April and in the dry season in July and November. The species was found all night long, mainly between 6:00 PM and 10:00 PM in animal sheds and between 8:00 PM and 2:00 AM indoors.
Keywords : Phlebotominae; Psychodidae; Vector Ecology; Insect Vector.