(Z)-5-decen-l-ol acetate was isolated from extracts of abdominal tips of femaleArgyrogramma verruca(Fabricius) and was identified by gas chromatography and mass spectrometry. In a flight-tunnel bioassay, this compound elicited upwind anemotactic flight by males to the pheromone dispenser at dosages equivalent to amounts extracted from one female abdominal tip. (Z)-5-decen-l-ol acetate was also attractive to maleA. verrucain the field, as indicated by catches in traps baited with this chemical. (Z)-7-dodecen-l-ol acetate, the major component of the female sex pheromone of numerous other Plusiinae, was not detected inA. verrucafemale abdominal-tip extracts.