Guidance

Mosquito Watch:recording submitscheme a(how mosquitoto report)

IfExplanation youof have seen a mosquito in the UK,collecting, youreporting, canand reportidentification it using the form on this page. You can also send us samples of mosquitoes youin havethe collected.UK.

Summary

The mostUK reported mosquitoHealth species is Culiseta annulata,Security aAgency’s widespread,(UKHSA) large,mosquito recording scheme (MRS) collects, combines, and conspicuous mosquito,enhances commonly misidentifiedexisting asdata the tiger mosquitoon (Aedesthe albopictus).distribution of all British mosquitoes to fill the gaps in our current understanding of mosquito distributions. All records are available from the National Biodiversity Network (NBN) Gateway for research and public use.

Since 2013, 592 submissions have been made to the MRS. The mosquito species reported most was Culex pipiens (s.l.),pipiens s.l., colloquially known as the ‘common house mosquito’, is alsomosquito’. Culex pipiens s.l. is one of the most abundant and widely reported.distributed Particularlymosquito species in autumn,the asUK, female Culexwith pipiens (s.l.)populations mosquitoesin willEngland, beginScotland, toand enter garages,Wales. sheds,Culiseta andannulata homeswas toalso overwinterwidely reported, as it is commonly misidentified as the weatherTiger getsMosquito cooler.   (Aedes albopictus).

OneThe invasiveMRS mosquitoalso speciesallows hasus beento detectedidentify throughwhich thespecies schemeare toresponsible date,for nuisance biting, and additionalthe incursionscircumstances havewhich beencontribute/support/encourage/ detectedlead by otherto surveillancenuisance schemes.biting incidents.

Why we collect mosquitoes

MosquitoThe Watch isNational Biodiversity Network is a passive surveillancepassive surveillance scheme, which aims to:  

  • to
    fill gaps, and enhance existing data, on the distribution of British mosquitoes mosquitoes.

  • identify whichIt species arealso responsibleaims for nuisanceto biting,increase theour environmentalunderstanding circumstancesof whichthe causeimpact nuisancethat bitingmosquitoes incidents,have andon thecommunities. impactThis includes the:

    • level of nuisance biting on affected communities 

      experiences
    • detect invasive mosquito species 

      species

    UKHSAWe relies on members of the public, entomologists, researchers, ecology consultants, wildlife groups, and others to submit mosquitoes to the scheme. We do not routinely testnot test mosquitoes for any pathogens they may carry, and we cannot provide advice on mosquito-borne illnesses.

    Report a mosquito

    You can report a mosquito,mosquito or submit athrough photograph, usingour this online form:form. You can also send a photograph of a mosquito to us.

    To Startdo nowthis, report through the online form and follow the instructions at the end.

    Report a mosquito

    Sending

    The UKHSA relies upon members of the public, entomologists, researchers, ecology consultants, wildlife groups, and others to submit mosquitoes to usthe byscheme.

    Sending post

    mosquitoes to us

    You can also send us any mosquitoes you have collected, along with your reference number generated by completing the online form, to the address below. below.

    When posting mosquitoes, please note: make sure that you:

    1. if you collect more than one mosquito from different habitats or locations, they should be placed in separate labelled containers. containers.

    2. if you collect more than one mosquito from the same habitat on the same day, they can be sent in one container.container

    3. live mosquitoes should be placed in a container and put in the freezer for 10 minutes inminutes in order to kill them.to kill them

    4. the mosquitoes should then be sent as soon as possible to the address below, along with your reference number generated by completing the online form.form

    5. send any mosquitoes collected in a crush-proof, plastic container (like an old camera film case, or, alternatively, plastic vials can be supplied on request to the address or email below).below)

    6. all specimens sent will be identified andbe identified and we will reply by email.email

    Send to: to:

    Mosquito Watch Recording Scheme

    Medical Entomology and Zoonoses Ecology Ecology

    UK Health Security Agency Agency

    Porton Down Down
    Salisbury 
    Salisbury

    SP4 0JG 0JG

    Email:Email mosquito@ukhsa.gov.uk

    Figure 1: Locations of Mosquito Recording Scheme submissions in the UK, with each point representing at least one report per 10 km grid square.

    Postage costs

    It should cost approximatelycost £1.50 toapproximately £3.50£1.50 to submit a mosquitoto £3.50 to Mosquito Watch whensend a mosquitoes into the MRS when using the correct shipping materials and method. Although this will depend on how many mosquitoes you are sending or the size of the tubes you are sending them in.in

    Below are some suggested shipping methods, using Royal Mail: Mail:

    • large letter (maximum thickness 2.5cm, max 100g) - our usual vials in a smalla padded envelopesmall padded envelope will fit this category 

      category
    • small parcel (maximum thickness 16cm) - larger containers, for example, universal tubes used by vets, will need to go in this category 

      category

    See Post Office price finder for up-to-date postage costs. costs.

    It is not necessary to post specimens using ‘signed for’ or ‘special delivery’.

    The Mosquito Recording Scheme

    The Mosquito Recording Scheme collects, combines, and enhances existing data on the distribution of all British mosquitoes to fill the gaps in our current understanding of mosquito distributions. Data generated through the Mosquito Watch scheme is included. All records are available from the National Biodiversity Network (NBN) Gateway for research and public use.

Updates to this page

Published 1 April 2013

Last updated 36 SeptemberMarch 20262025 + show Show all updates
    1. Amended 'Key statistics' section to say one invasive species has now been detected.

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