Identification of communal oviposition pheromones from the black fly Simulium vittatum

Academic Article


  • The suite of pheromones that promote communal oviposition by Simulium vittatum, a North American black fly species, was identified and characterized using gas chromatographymass spectrometry, electrophysiological, and behavioral bioassays. Behavioral assays demonstrated that communal oviposition was induced by egg-derived compounds that were active at short range and whose effect was enhanced through direct contact. Three compounds (cis-9-tetradecen-1-ol, 1-pentadecene, and 1-tridecene) were identified in a non-polar solvent extract of freshly deposited S. vittatum eggs that were capable of inducing the oviposition response. Electroantennography demonstrated that two of these three compounds (1-pentadecene and 1-tridecene) actively stimulated antennal neurons. Identification of the oviposition pheromones of this family may be helpful in developing control measures for nuisance black flies and for medically-important species such as Simulium damnosum sensu lato.
  • Authors

    Published In

  • PLoS One  Journal
  • Digital Object Identifier (doi)

    Author List

  • McGaha TW; Young RM; Burkett-Cadena ND; Iburg JP; Beau JM; Hassan S; Katholi CR; Cupp EW; Baker BJ; Unnasch TR
  • Volume

  • 10
  • Issue

  • 3