VARIOUS MECHANISMS. “In many animals, sex determination involves the entire genome. With haplodiploidy (found in about 12% of animal species, including all ants, wasps, and bees) and paternal genome elimination (found in scale insects), males only transmit their maternal set of genes.”
http://journals.plos.org/plosbiology/article?id=10.1371/journal.pbio.1001899