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Browsing ant

Browsing ant (Lepisiota frauenfeldi) is highly suited to the Australian environment and is a significant threat to our natural environment and horticultural industry. 

Shiny dark brown ants
Look and report

Browsing ant

Pests & insects

Browsing ant originates from southern Europe and can be extremely invasive, having proven a willing traveller, hitchhiking in freight and cargo. To date, all known infestations have been eradicated, but we need your help in reporting any suspicious ants.

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Browsing ants cover a person's hand
Browsing ants on a person's hand

Browsing ant

Browsing ants are a slender, shiny, dark brown ant about 3 to 4 mm in length, with long antennae and legs. They run in a haphazard manner when disturbed.

The browsing ant can: 

  • establish multi-queened super colonies and quickly reach large populations 
  • displace important native ant species’ and potentially outcompete and kill them by monopolising food and nesting resources 
  • farm and protect sap-sucking insects, such as scale, aphids, and mealybug, which can eventually kill the plants they feed on, severely impacting our horticultural industry 
  • become a significant household pest as it forages indoors for food, although it is not harmful to people or pets. 

The browsing ant has previously been found by the department at Perth Airport and several suburbs and commercial hubs in metropolitan Perth. To date, all known infestations have been eradicated, but we need your help in reporting any suspicious ants so that we can keep these invasive pests from establishing in Western Australia. 

  • Browsing ant surveillance brochure
    pdf (2.72 MB)
  • High risk ants for Western Australia
    pdf (1.06 MB)

Early detection and reporting will help protect WA’s primary industries.

If you find or suspect the presence of browsing ant, report it in one of the following ways:

  • MyPestGuide Reporter app

    Download the app so you can report pests on your smartphone.

  • MyPestGuide website

    Explore the range of apps that help you identify, report and manage pests. 

  • Call PaDIS

    The department's Pest and Disease Information Service can help with identification and advice. Phone: (08) 9368 3080

    Email: padis@dpird.wa.gov.au

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