The plural of mosquito is mosquitoes or mosquitos, depending on what reference source you look in. I have come to favor the mosquitoes. We don't have many mosquitoes in this part of Colorado. Other parts of the state have plenty, and even the kind that carry West Nile virus. I don't know if there's any other insect that has no redeeming value. They don't pollinate crops or anything but spread disease and make people miserable. Whether it's malaria, west Nile or canine heartworm, it's mosquitoes that carry it. And efforts to eradicate them around the world have mostly failed. If any mosquitoes want to write a rebuttal to this they're welcome to do so.