Typically , both male and female mosquitoes feed on nectar and plant juices , but in many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites .
Usually both male and female mosquitoes feed on nectar and plant juices . In many species the mouthparts of the females are adapted for piercing the skin of animal hosts and sucking their blood as ectoparasites .