Journal of Chemical Ecology

, Volume 9, Issue 1, pp 13–31

Defensive and pheromonal secretion of the tergal gland ofAleochara curtula II. Release and inhibition of male copulatory behavior

  • K. Peschke

DOI: 10.1007/BF00987767

Cite this article as:
Peschke, K. J Chem Ecol (1983) 9: 13. doi:10.1007/BF00987767


At high concentrations, the defensive tergal gland secretion (TGS)3 of the staphylinid beetle,Aleochara curtula, inhibits the male copulatory response (grasping with parameres). Inhibitory chemicals, for which a function as alarm substances is assumed, aren-undecane, 1-undecene,n-dodecanal, toluquinone, and 2-methoxy-3-methyl-1,4-benzoquinone. When emitted in small amounts, however, the TGS releases the male grasping response. The main components with aphrodisiac effect are (Z)-4-tridecene,n-dodecanal, and (Z)-5-tetradecenal. These supplementary mating stimulants, which are not sex specific, work synergistically with the aphrodisiac female sex pheromone from thé epicuticular lipids and are discussed as alerting pheromones of short-term effect. Antennal movements of resting males as an indication of the recognition of a female and the approach to the mate are released at somewhat longer distances, when the TGS is additionally present.

Key words

Aleochara curtula (Goeze) Coleoptera Staphylinidae tergal gland secretion defense mating stimulants female sex pheromone hydrocarbons n-aldehydes substituted 1 4-benzoquinones 



tergal gland secretion


female equivalent


male equivalent

Copyright information

© Plenum Publishing Corporation 1983

Authors and Affiliations

  • K. Peschke
    • 1
  1. 1.Zoologisches Institut III der Universität WürzburgWürzburgWest Germany

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