 During male tapping, sperm is moved into the singlet spermatheca, and typically females use the sperm from the singlet spermatheca during egg-laying.For this reason, males maximize reproductive success by ensuring that they are the last to mate with a given female; the final male to mate with a female before egg-laying is substantially more likely to fertilize her eggs.Eggs laid in the last oviposition bout are the most likely to survive.