Memorias do Instituto Oswaldo Cruz (Feb 2006)

Identification of sex pheromones of Lutzomyia longipalpis (Lutz & Neiva, 1912) populations from the state of São Paulo, Brazil

  • Cláudio Casanova,
  • JGC Hamilton,
  • JR Trigo,
  • Antonio IP Costa

DOI
https://doi.org/10.1590/s0074-02762006000100023
Journal volume & issue
Vol. 101, no. 1
pp. 113 – 115

Abstract

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In Brazil, four populations of Lutzomyia longipalpis each producing different sex pheromones are recognised. It has been suggested that these chemotype populations represent true sibling species. In this study we present the results of an analysis, by coupled gas cromotography - mass spectrometry, of the pheromones of males L. longipalpis from two different municipalities of the state of São Paulo. Our study showed that L. longipalpis from these two municipalities produced different sex pheromones from each other. This coupled with the remarkable difference between the epidemiological situation in Araçatuba and Espírito Santo do Pinhal, suggests that the (S)-9-methylgermacrene-B and cembrene-1 populations may have different vectorial capacities.

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