Lack of local adaptation of feeding and calling behaviours by <i>Yponomeuta cagnagellus</i> moths in response to artificial light at night

Artificial light at night (ALAN) is one of the suggested drivers global decline in insects, including moths. ALAN strongly affects moth physiology and behaviour, but it remains unknown whether a selective pressure that drives adaptation evolution We assess feeding calling behaviours Yponomeuta cagnagellus moths are locally adapted to ALAN. Collected from locations were either illuminated or dark night-time for several decades, exposed different intensities laboratory experiment. Male moths, not female fed less frequently bright than dim conditions. Female was frequent dimly brightly lit conditions treatment. Individuals source populations showed increased behaviour by males marginally decreased females. Our study suggests phenotypical females male Y. has resulted adaptation. Long-term also affected frequency. Reduced conditions, perhaps driven reduced need such because an increase visual cues through proximity individuals may result long-term Studies into more species required determine extent which lack contribute current declines populations.