Description: English: Asian Rock Pool Mosquito - Ochlerotatus japonicus, Woodbridge, Virginia. Unfortunately, these mosquitoes are a vector for West Nile virus, so I'm not very happy that I found this female on my house. HFDF. Date: 22 April 2014, 09:49:02. Source: https://www.flickr.com/photos/52450054@N04/14084705611/. Author: Judy Gallagher.