<i>Culex pipiens</i> Adult (IMAGE) University of California - Santa Cruz Caption Culex pipiens, the northern house mosquito, is the most common mosquito in urban and suburban areas in North America. Mosquito populations have increased as much as ten-fold over the past five decades in New York, New Jersey, and California. Credit Ary Faraji Usage Restrictions For use only with news coverage of this research License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.