https://press.uni-mainz.de/determining-sex-in-ants/
somehow a male ant has one set of chromosomes while the female ant has two sets of chromosomes. So a male ant sperm must contain enough information to make a complete male? Then when they mate with the female of the other species, the females egg actually gets blanked out so to speak, containing none of the females own genetic material. Then the male sperm fertilizes the egg with one set of chromosomes producing a male offspring that is a clone?
Having genetic differences between males and females is mostly a bird and mammal thing, at least among vertebrates.
https://www.sciencedirect.com/science/article/pii/S003257911...
In some though not all such species, there are no known male examples _at all_ (though in reptiles some forms of parthenogenesis can produce males).