Effects of transgenerational photoperiod experience on the reproduction and development of Anastatus orientalis, an egg parasitoid of the spotted lanternfly

Transgenerational experience can affect a range of natural enemies’ life-history traits and be involved in the control developmental plasticity. As major egg parasitoid spotted lanternfly, Lycorma delicatula (Hemiptera: Fulgoridae), wasp Anastatus orientalis (Hymenoptera: Eupelmidae) is effective at suppressing its host populations. The reproductive A. known to depend on photoperiod conditions, but transgenerational photoperiodic effects have yet evaluated. To evaluate , we assessed adult longevity, female fecundity, sex ratio, diapause rate over three consecutive generations under different experimental photoperiods (L16:D8, L12:D12, L8:D16), using Antheraea pernyi (Lepidoptera: Saturniidae) eggs as hosts. results suggest that significantly impacts several biological parameters progeny. All parasitoids entered long condition (i.e., L16:D8), after which number fecundity 2nd 3rd increased compared 1st generation. With ratio rose from 68.1% (1st generation) 86.0% (3rd progeny per females 35.8 75.7. However, longevity males were shortened significantly. intermediate (L12:D12) short (L8:D16) there no significant differences among generations, These applied improve laboratory rearing efficiency better understand population dynamics field across latitudinal gradient.