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Identification of a sex pheromone produced by sternal glands in females of the caddisfly Molanna angustata Curtis.

In English

Författare

Summary, in English

In the caddisfly Molanna angustata, females produce a sex pheromone in glands with openings on the fifth sternite. Gas chromatographic analyses of pheromone gland extracts with electroantennographic detection revealed four major compounds that stimulated male antennae. These compounds were identified by means of gas chromatography-mass spectrometry and enantioselective gas chromatography as heptan-2-one, (S)-heptan-2-ol, nonan-2-one, and (S)-nonan-2-ol in the approximate ratio of 1:1:4:10, respectively. Field tests showed that the mixture of the two alcohols was attractive to males whereas addition of the corresponding ketones reduced trap catches. The sex pheromone of M. angustata, a species in the family Molannidae within the suborder Integripalpia, is similar to the pheromones or pheromone-like compounds previously reported from six other trichopteran families, including members of the basal suborder Annulipalpia. This suggests that minimal evolutionary change of the pheromone chemistry has taken place within the leptoceroid branch of integripalpian Trichoptera compared to the ancestral character state.

Publiceringsår

2008

Språk

Engelska

Sidor

220-228

Publikation/Tidskrift/Serie

Journal of Chemical Ecology

Volym

34

Issue

2

Dokumenttyp

Artikel i tidskrift

Förlag

Springer

Ämne

  • Biological Sciences
  • Zoology

Status

Published

Forskningsgrupp

  • Pheromone Group

ISBN/ISSN/Övrigt

  • ISSN: 1573-1561