Journal of Chemical Ecology

, Volume 10, Issue 1, pp 17–23 | Cite as

Effect of pheromone concentration on organization of preflight behaviors of the male gypsy moth,Lymantria dispar(L.)

  • T. E. Hagaman
  • R. T. Cardé


Male gypsy moths (Lymantria dispar L.) in a wind tunnel at 24° respond to decreasing dosages (1 μg to 0.1 pg) of (+)-cis-7,8-epoxy-2-methyloctadecane with a decrease in probability of wing-fanning, an increase in wing-fanning latency, and an increase in the number of behaviors (body jerks, antennal twitches, steps, and wing tremors) preceding fanning. Males initiating any behavior prior to wing-fanning had a 70% probability of wing-fanning and 97% of the males that wing-fanned eventually flew. The sequence of behaviors from quiescence to flight is not organized in a hierarchy, as this concept is used in ethology, nor is it dependent upon the concentration of pheromone. The time-average threshold concentration of pheromone for response of ca. 90% or more quiescent males is ca. 1.9 × 10−17 g/cm3 over < 0.3 min.

Key words

Gypsy moth Lymantria dispar Lepidoptera Lymantriidae preflight male behavior (+)-cis-7,8-epoxy-2-methyloctadecane (+)-dis-parlure wing-fanning 


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Copyright information

© Plenum Publishing Corporation 1984

Authors and Affiliations

  • T. E. Hagaman
    • 1
  • R. T. Cardé
    • 1
  1. 1.Department of Entomology and Pesticide Research CenterMichigan State UniversityEast Lansing
  2. 2.Department of PsychologyDePauw UniversityGreencastle
  3. 3.Department of EntomologyUniversity of MassachusettsAmherst

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