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Journal of Chemical Ecology

, Volume 28, Issue 3, pp 501–513 | Cite as

Semiochemicals of the Scarabaeinae: VI. Identification of EAD-Active Constituents of Abdominal Secretion of Male Dung Beetle, Kheper nigroaeneus

  • B. V. Burger
  • W. G. B. Petersen
Article

Abstract

Using gas chromatography with flame ionization detection (FID) and electroantennographic detection (EAD) in parallel, and employing chiral and achiral capillary columns, three constituents of the abdominal sex-attracting secretion of male Kheper nigroaeneus dung beetles were found to elicit reproducible EAD responses in male and female K. nigroaeneus antennae. One of these constituents is present in the secretion in such a small quantity that it could not be detected by FID, and it was not identified. The other constituents were identified as 3-methylindole (skatole) and (R)-(+)-3-methylheptanoic acid.

Scarabaeinae Kheper nigroaeneus dung beetle sex attractant sex pheromone insect semiochemicals EAD electroantennographic detection 

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Copyright information

© Plenum Publishing Corporation 2002

Authors and Affiliations

  1. 1.Laboratory for Ecological Chemistry, Department of ChemistryUniversity of StellenboschStellenboschSouth Africa

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