Seasonal and Diel Patterns of Sex Attraction of Male Harrisina Americana and Acoloithus Falsarius (Lepidoptera: Zygaenidae)
Abstract
Seasonal and diel patterns of sexual activity of Harrisina americana (Guerin) and Acoloithus falsarius Clemens males were determined with traps baited with the sex attractant R-(-)-2-butyl-(Z)-7-tetradecenoate. Analysis of weekly trap catches indicated three generations of H. americana and two generations of A. falsarius per year with broad overlap in the seasonal activity patterns of both. During May, male H. americana were attracted shortly after sunrise, while A. falsarius were attracted in mid afternoon. Sexual interactions between the two species appear then to be precluded by asynchrony in their respective diel activity rhythms.Downloads
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