Figure 2.

Known distribution of A. albopictus based on field observations from the ECDC/VBORNET project (December 2011). Dark red denotes established: the species is observed in at least one municipality of the shown administrative unit for at least 5 years counting back from the ‘distribution status date’. Red, recently present: the species was observed at least in one municipality during the last 5 years. Green, absent: surveys and studies on mosquitoes were conducted during the last 5 years and no specimens were reported. Medium grey, no data: no data over the last 5 years are available to local experts. Light grey, unknown: no information is available on the existence of studies on mosquito fauna over the last 5 years.