is an invasive mosquito species. It originated in East Asia and the Far East but has become widely established in North America and in parts of central Europe. Populations are now widely established in northern Switzerland and southern Germany, there were other records from France where it was successfully controlled, and Belgium.
Common ways of dispersal are believed to be partly linked to used tyres importation; however in Switzerland the sites of initial introduction are not clear. This mosquito is a container habitat species, adapting to urban areas where it is a nuisance biting pest. In Switzerland it has been found utilising cemetery vases, fountains, water casks and catch basins as aquatic habitats. Its ability to withstand winter temperatures and the speed of its dispersal in Switzerland suggest that Aedes japonicus could become more widely established in Europe. This spread could be exacerbated by its exploitation of less specialised aquatic habitats compared to Aedes albopictus.
Although not considered an important disease vector, its proliferation in urban areas and its propensity to feed on a range of hosts shows its importance as a nuisance biting pest. Studies demonstrating its competence as a vector of a number of arboviruses suggest that this species has the potential to become involved in disease transmission.