Mosquitoes belong to one of the largest insect orders, the Diptera or true (two-winged) flies. This order has about 67 families. The one to which the mosquitoes belong is called Culicidae. Some authorities divide into three divide the Culicidae into three sub families, the Culicidae, or biting mosquitoes , and the Dixiinae and Chaoborinae which are non-biting. Most taxonomists now restrict the family Culicidae to the biting species and place the dixids and chaoborids in separate families, as I do.
Belton, Peter. 1983. The Mosquitoes of British Columbia. British Columbia Provincial Museum