18 HARMFUL UNWANTED I N T H E P A C I F I C Little fire Black crazy ant Wasmannia auropunctata longicornis 1 Size: 1.5 mm 10 Size: 2.7 mm

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Red imported fire ant Pharaoh ant Solenopsis invicta Monomorium pharaonis 2 Size: 2-6 mm 11 Size: 2 mm

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Yellow crazy ant gracilipes Nylanderia fulva 3 Size: 5 mm 12 Size: 3.2 mm

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African big-headed ant Difficult white-footed ant megacephala Technomyrmex difficilis 4 Size: 2 mm-3.5 mm 13 Size: 2.7mm

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Argentine ant Fijian white-footed ant Linepithema humile Technomyrmex vitiensis 5 Size: 2.5 mm 14 Size: 2.4 mm

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Tropical fire ant White-footed house ant Solenopsis geminata Technomyrmex albipes 6 Size: 3-8 mm 15 Size: 3 mm

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Bicoloured pennant ant Similar groove-headed ant Tetramorium bicarinatum Tetramorium simillimum 7 Size: 4 mm 16 Size: 2.4 mm

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Ghost ant Browsing ant 8 Tapinoma melanocephalum 17 Lepisiota sp. Size: 1.4 mm Size: 3.5 mm

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Singapore ant Bicoloured trailing ant Trichomyrmex destructor Monomorium floricola 9 Size: 1.8-3.5 mm 18 Size: 1.7 mm

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KEY

bites sprays stings harms harms harms lives in lives on night day different acid crops people wildlife trees ground active active sizes These ants will cause harm to you, your crops and your environment. If you find any of these ants, please contact your local quarantine/biosecurity