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EVIDENCE OF A MALE SEX PHEROMONE IN THE EUROPEAN CORN BORER, OSTRINIA NUBILALIS (HÜBNER) (LEPIDOPTERA: PYRALIDAE)

Published online by Cambridge University Press:  31 May 2012

Lucie Royer  and
Jeremy N. McNeil
Lucie Royer
Affiliation:
Département de biologie, Université Laval, Sainte-Foy, Québec, CanadaG1K 7P4
Jeremy N. McNeil
Affiliation:
Département de biologie, Université Laval, Sainte-Foy, Québec, CanadaG1K 7P4
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Abstract

European corn borer males have hair pencils located ventrally on the 8th sternite and these are extruded when a male approaches a calling female. The fact that (i) antennectomized females mated significantly less than both intact controls and individuals subjected to other forms of surgery, and (ii) males with hair pencils removed had a significantly lower mating success than control males, suggests that a male pheromone is involved in the mating system of the European corn borer.

Résumé

Les pinceaux androconiaux des mâles de la pyrale du maïs sont situés ventralement sur le 8ième sternite et sont exposés lorsqu’un mâle approche une femelle en appel. Le succès d’accouplement des femelles sans antenne est significativement moindre que celui obtenu pour des femelles intactes ou soumises à d’autres formes de chirurgie. De plus, le succès d’accouplement des mâles dont les pinceaux androconiaux ont été enlevés, est plus faible que celui des témoins. Ces résultats appuient l’hypothèse qu’une phéromone mâle est impliquée au cours de l’accouplement de la pyrale du maïs.

Type
Articles
Information
The Canadian Entomologist , Volume 124 , Issue 1 , February 1992 , pp. 113 - 116
Copyright
Copyright © Entomological Society of Canada 1992

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