Do all mosquitoes bite humans?

Mosquitoes!  We go to war with these tiny blood suckers every warm season.  Are all those annoying mosquitoes only females, or do all mosquitoes bite humans? Male mosquitoes do not bite humans or animals. They feed on nectar alone.  If a male mosquito is close to you, it will simply be annoying. That said, male mosquitoes typically avoid contact with humans. They don’t need us after all.  If you are experiencing swarms of mosquitoes, they are likely all female.