Cost of male diapause indirectly affects female reproductive performance

We evaluated the cost of diapause in both females and males separately in the multivoltine bruchid Acanthoscelides pallidipennis (Motschulsky) (Coleoptera: Bruchidae). We artificially generated diapause (D) and non-diapause (ND) individuals and compared the reproductive traits among all combinations of D and ND pairs. Diapause in both sexes had negative effects on the female pre-oviposition period and fecundity, but not on egg volume. Females mated to D males had longer pre-oviposition period and lower fecundity than females mated to ND males. These results showed that reproductive performance of a female could be influenced by the diapause experience not only of herself but also of the male with whom she mated.