A little different since the 'killer bees' were bred by cross breeding European honey bees with an African species to get a bee that could better survive in tropical areas.
The mosquitoes have been genetically altered to produce sterile progeny.
So the bees, which I think escaped a breeding program so were not 'released' intentionally, were bred conventionally to be a more aggressive insect than the original European bee but the mosquitoes have been developed through more precise gene manipulation to breed themselves out of existenace.
BTW the European bee is not native to North America either.
And genetically modified mosquitoes to breed infertility have been used before in other parts of the world to reduce mosquitoes.
