What types of mosquitoes are known to transmit the West Nile Virus?
West Nile virus has been detected in more than 30 kinds of mosquitoes. However, only a very few species are expected to be important in West Nile virus transmission. The most prominent include the northern house mosquito, Culex pipiens, and Culex tarsalis, both of which occur in Colorado. Aedes vexans, is another potentially important transmitter that occurs locally.