Mosquito maps

These maps show the distribution and surveillance of vectors at ‘regional’ administrative unit level - NUTS3 or equivalent and NUTS2 in Austria, Belgium, Denmark, Germany, The Netherlands, England (UK), Scotland (UK) and Wales (UK). 

The maps do not represent the official view or position of the countries.

Surveillance for invasive mosquitoes

The surveillance maps shows the regions where surveillance activities for invasive mosquitoes were held in Europe and neighbouring regions.

Seasonal active surveillance for invasive mosquitoes over 2017–2019

The map 'Seasonal active surveillance for invasive mosquitoes over 2017–2019' shows the number of different calendar months in which any active surveillance took place per administrative area.

Invasive mosquito surveillance effort over 2015–2019

The map 'Invasive mosquito surveillance effort over 2015–2019' shows the surveillance effort per administrative area, by highest surveillance type.

Distribution maps of invasive mosquitoes

The maps show the current distribution of invasive mosquito species in EU/EEA at ‘regional’ administrative unit level. The maps are based on data (published and unpublished) provided and validated by experts.

Separate maps for the distribution of each of the following exotic mosquito species are currently available:  Aedes aegypti, Aedes albopictus, Aedes japonicus, Aedes atropalpus and Aedes koreicus.

For invasive species the possible distribution statuses are:

  • Established: An established population (evidence of reproduction and overwintering) of the species has been observed in at least one municipality within the administrative unit.
  • Introduced: The species has been detected (but without confirmed establishment) within the administrative unit.
  • Absent: Field surveys or studies on mosquitoes were conducted but the species has not been detected within the administrative unit.
  • No data: No sampling has been performed and no data on the species is available within the administrative unit.
  • Unknown: It is unknown whether there are field studies on this species within the administrative unit.

Vector distribution status changes in terms of spatial units since the previous update

Since the previous update (October 2020), additional ‘Absent’ data were reported for all invasive mosquito species (n=54), and new ‘introduced/established’ (n=69) show:

  • Aedes aegypti shows to further spread along the Black Sea coast, since it is newly reported from Crimean peninsula (data from 2016, published in 2020), however the local establishment of the species needs to be confirmed. The elimination of the species from Canaries (its presence was observed in 2017) is confirmed.
  • Aedes albopictus is found for the first time in Moldova. More introduction events are reported northward to the current colonised area, i.e. in Austria, Switzerland, and Belgium.
  • For Aedes japonicus, introduction events are reported from some areas in Austria and Belgium and the species has established in additional areas in Croatia and Switzerland; For Aedes koreicus some introduction events are reported in Austria and Switzerland, and it is confirmed established in southern Switzerland and on the Crimean peninsula.

Aedes koreicus - current known distribution: March 2021

4717 new reports were submitted since the previous update (October 2020).

Aedes atropalpus - current known distribution: March 2021

8 new reports were submitted since the previous update (October 2020).

Aedes invasive mosquitoes - current known distribution: March 2021

17009 new reports were submitted since the previous update (October 2020).

Aedes japonicus - current known distribution: March 2021

6539 new reports were submitted since the previous update (October 2020).

Aedes aegypti - current known distribution: March 2021

39 reports were submitted since the previous update (October 2020).

Surveillance for native mosquitoes

The surveillance maps shows the regions where surveillance activities for native mosquitoes were held in Europe and neighbouring regions.

Seasonal active surveillance for native mosquitoes over 2017–2019

The map 'Seasonal active surveillance for native mosquitoes over 2017–2019' shows the number of different calendar months in which any active surveillance took place per administrative area.

Native mosquito surveillance effort over 2015–2019

The map 'Invasive mosquito surveillance effort over 2015–2019' shows the surveillance effort per administrative area, by highest surveillance type.

Distribution maps of native mosquitoes

The maps show the current distribution of native mosquito species in Europe at ‘regional’ administrative unit level. The maps are based only on confirmed data (published and unpublished) provided by experts.

For native species the possible distribution statuses are:

  • Present: The species has been observed to be present in at least one municipality within the administrative unit.
  • Introduced: The species has been introduced in the administrative unit without confirmed establishment.
  • Anticipated Absent: the species has never been reported and there is a high probability that it is absent.
  • Confirmed Absent: the species has never been reported within the administrative unit and there have been field surveys or studies on mosquitoes within the last 5 years of the distribution status date.
  • No Data: No sampling has been performed and no data on the species is available.
  • Unknown: The status is unknown

Areas outside the scope of the VectorNet geographical scope are colour-coded as ‘Outside scope’.

Vector distribution status changes in terms of spatial units since the previous update

Since the previous update (October 2020), datasets were completed mainly for Culex pipiens (n=65), Aedes albopictus (n=47), Aedes japonicus (n=43), Culex torrentium (n=35), and Anopheles plumbeus (n=30) and in particular for Switzerland (n=118), Spain (n=90), Germany, (n=75), Italy (n=64), and Austria (n=53). No specific distribution extension is shown but gaps are filled in countries where the species’ presence was already known.

Culex modestus - current known distribution: March 2021

61 new reports were submitted since the previous update (October 2020).

Aedes caspius - current known distribution: March 2021

162 new reports were submitted since the previous update (October 2020).

Aedes vexans s.l. - current known distribution: March 2021

318 new reports were submitted since the previous update (October 2020).

Anopheles plumbeus - current known distribution: March 2021

227 new reports were submitted since the previous update (October 2020).

Coquillettidia richiardii - current known distribution: March 2021

209 new reports were submitted since the previous update (October 2020).

Culex pipiens group - current known distribution: March 2021

1234 new reports were submitted since the previous update (October 2020).

Aedes detritus/Aedes coluzzii - current known distribution: March 2021

82 new reports were submitted since the previous update (October 2020).

Anopheles maculipennis s.l. - current known distribution: March 2021

286 new reports were submitted since the previous update (October 2020).

Anopheles superpictus - current known distribution: March 2021

0 new reports were submitted since the previous update (October 2020).
Page last updated 31 Mar 2021