The Culex genus of mosquitoes has a worldwide distribution and is found on every continent except Antarctica. Fourteen species occur throughout the United States and Canada. Many species of Culex are known as the "house mosquito" because these insects commonly develop in small containers around houses. The main host for Culex is wild birds, but it also feeds on a wide variety of warm-blooded vertebrates, including humans.

View a second image of a Culex mosquito.

Culex is a carrier of viral encephalitis and, in tropical and subtropical climates, of filariasis. In the United States, they are disease vectors for western equine and Saint Louis encephalitis. They are also vectors for the West Nile virus that suddenly appeared in the Queens borough of New York City in the summer of 1999, killing six people. The virus, established in Africa and Europe, was most likely introduced into the United States by accident. When exactly this happened is subject to debate. The virus may have been in the states for years, but until people started dying from it, one knew about it. Given that Culex and birds are found everywhere there are people in North America, this disease is probably here to stay.

---

BACK TO THE OBLIQUE IMAGE GALLERY

BACK TO THE DIGITAL IMAGE GALLERIES

Questions or comments? Send us an email.

© 1995-2022 by Michael W. Davidson and The Florida State University. All Rights Reserved. No images, graphics, software, scripts, or applets may be reproduced or used in any manner without permission from the copyright holders. Use of this website means you agree to all of the Legal Terms and Conditions set forth by the owners.

This website is maintained by our
Graphics & Web Programming Team
in collaboration with Optical Microscopy at the
National High Magnetic Field Laboratory.

Last Modification Friday, Nov 13, 2015 at 01:19 PM

Access Count Since September 17, 2002: 8498

Visit the website of our partner in introductory microscopy education: