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vol.17 issue1Hourly frequency and seasonality of Lutzomyia longipalpis (Diptera: Psychodidae: Phlebotominae) on São Luís Island, Maranhão, BrazilCollective health: a challenge for nursing author indexsubject indexarticles search
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Cadernos de Saúde Pública

On-line version ISSN 1678-4464Print version ISSN 0102-311X


OLIVEIRA, Sandra Maria Pereira de et al. Digestive tract microbiota in female Lutzomyia longipalpis (Lutz & Neiva, 1912) (Diptera: Psychodidae) feeding on blood meal and sacarose plus blood meal. Cad. Saúde Pública [online]. 2001, vol.17, n.1, pp.229-232. ISSN 1678-4464.

There are very few reports on the microbiota of the digestive tract of sand flies, an important omission considering that blood is not the only meal ingested. Male and female sand flies obtain sugar meals from several sources, thereby increasing their chance of infection with microorganisms. Chances of contamination are higher when insects are bred in the laboratory, and this may affect the development of Leishmania spp. From the digestive tract of 300 sand fly females separated in two groups we isolated 10 species of bacteria in group 1 and 8 species in group 2. In group 1, Enterobacteriaceae of the following genera were identified: Serratia, Enterobacter, and Yokenella and the non-fermenters: Pseudomonas, Acinetobacter, and Stenotrophomonas. In group 2, the Enterobacteriaceae Enterobacter and Serratia were identified as well as the non-fermenters Acinetobacter, Stenotrophomonas, Burkolderia, and Pseudomonas.

Keywords : Phlebotominae; Psychodidae; Microbiology.

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