Environment officials are raising public awareness of the little fire ant, an invasive species that is not known to be present in Bermuda but which could be accidentally introduced.

The Department of Environment and Natural Resources said the insects can be introduced through imported plants, soil, landscaping materials, cargo and other goods.

Allomerus auropunctatus, formerly Wasmannia auropunctata, is common in tropical and subtropical regions including Florida, and has been identified around major shipping areas.

The DENR said such presence increases the importance of continued vigilance in Bermuda.

A department spokeswoman said: “The species is considered particularly difficult to detect because worker ants are only approximately 1.2 to 1.5 millimetres long.

“They are generally golden-orange to light brown, move relatively slowly and can easily be overlooked during inspections.

“Little fire ants can nest in leaf litter, mulch, potted plants, nursery stock, tree cavities, garden structures and wall crevices.

“They can also deliver a painful burning sting and people may become aware of an infestation through stings before noticing the ants themselves.

“If introduced and allowed to become established, the species could affect Bermuda’s environment, agriculture and community.

“In other areas, little fire ants have displaced native insects, contributed to increased plant pests and affected residents, outdoor workers, pets and wildlife.

“Their high population densities can also disrupt local ecosystems and place additional pressure on native species.”

Bermuda’s recent response to the red imported fire ant presence on the island has reinforced the importance of vigilance, early detection and rapid action when dealing with invasive species, the DENR said.

The department added that the same lessons will be important in reducing the risk of the little fire ant becoming established.

The spokeswoman added: “DENR is therefore encouraging residents, landscapers, gardeners, importers and others handling plants or cargo to remain alert.

“Particular attention should be given to unusually high numbers of very small orange ants, especially where painful stings are also being experienced.

“Early detection provides the best opportunity to prevent an invasive species from becoming established and protects Bermuda’s environment, agriculture and community.”

Any suspected sightings should be reported to the DENR for investigation by e-mailing fireants@gov.bm.