| Description: | This 2005 photograph shows a close-up view of a Culex Tarsalis mosquito resting on a piece of fabric. Note the light-colored band wrapped around its dark-scaled proboscis (arrowhead), and though not noticeably apparent, if you look closely, the multiple similarly light-colored bands wrapped around its distal appendages, i.e., the tibia and femur, characteristics that identify this as a C. tarsalis. C. tarsalis are medium-sized medium sized mosquitoes, the epidemiologic importance of which lies in its ability to spread Western Equine Encephalitis (WEE), St. Louis Encephalitis (SLE), and California Encephalitis, and is currently the main vector of West Nile virus in the Western United States. |