No, male mosquitoes are not the biters. The female mosquitoes are the ones who bite and end up spreading disease. They bite you in order to drink your blood in order to use it to reproduce. When the blood is digested it provides the nutrition needed for the female mosquitoes to produce their larvae. They will drink from one or many people until they a full of blood and that is where the dange is. When they go from person to person is the same as sharing needles, they can infect you with diseases they come in contact with.