Calling and mating behaviors of adult Orthaga achatina(Lepidoptera: Pyralidae)
樟巢螟成虫的求偶及交配行为

A laboratory study was made on the calling and mating behaviors of adult Orthaga achatina at(27±1)℃,(60 ±10)% RH,and 14 L：10 D photoperiod.The female O.achatina did not call until the start of scotophase,with the calling percentage increased sharply at the 5~(th) hour and reached the peak at the 6~(th)-7~(th) hour of scotophase.The calling percentage varied with moth age,being the highest(>70%) at the age of 2-3 d.The mating behavior could be divided into two successive periods,I.e.,calling period and mating period.The mating between female and male O.achatina occurred during the 5~(th)-9~(th) hour of scotophase,with the peak at the 6~(th)-7~(th) hour into scotophase,which was in accordance with the peak time of female calling behavior.Females mated only one time during their whole life.Treatment 1 ♀：2 ♂ showed a significantly higher mating percentage,but a significantly shorter mating duration time,compared with treatment 1 ♀：1♂.