🦠microbiology review

Culex tarsalis

Written by the Fiveable Content Team • Last updated September 2025
Written by the Fiveable Content Team • Last updated September 2025

Definition

Culex tarsalis is a species of mosquito known for transmitting various arboviruses, including those that can cause encephalitis. It plays a significant role in the spread of neuroinvasive diseases to humans.

5 Must Know Facts For Your Next Test

  1. Culex tarsalis is a primary vector for West Nile virus, which can cause severe neurological disease.
  2. This mosquito species is most active during dusk and dawn, increasing the risk of transmission during these times.
  3. Culex tarsalis can transmit the St. Louis encephalitis virus, another pathogen that affects the nervous system.
  4. The habitat of Culex tarsalis includes rural and agricultural areas where it breeds in standing water.
  5. Control measures against Culex tarsalis include eliminating standing water and using insect repellents to prevent bites.

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