The Asian needle ant, a stealthy and dangerous invasive species, has spread across 19 U.S. states, posing a severe health threat according to entomologists. Originally introduced to the United States in the 1930s, the ant has remained largely unnoticed for nearly a century. Dan Suiter, an entomologist at the University of Georgia, warns that the ant’s painful sting can lead to severe allergic reactions, with three cases of anaphylactic shock reported in the past year.
Despite its potential to cause significant health issues, the ant has not garnered the attention it merits, according to Suiter. The species has primarily spread to the southeastern states, with reports also noted in Washington and Texas, although the latter requires further verification. This ant’s ability to thrive in shaded areas with hardwood trees makes it particularly difficult to detect, as it often resides in leaf litter and undisturbed forests.
Unlike other ant species, the Asian needle ant exhibits a unique behavior where it moves independently and is largely predatory. This distinct behavior has led experts to classify it as a cryptic ant. Additionally, the Forest Service has identified the ant’s capacity to displace native ant species that are crucial for seed dispersal, further exacerbating its ecological impact.
While public awareness about the Asian needle ant is growing, health officials continue to urge individuals to report any sightings and to seek immediate medical attention if stung. The Federal Register defines invasive species as those that pose an ecological or health threat to non-native environments, and the Asian needle ant fits this criterion. The ongoing spread of the ant underscores the need for vigilance, as it continues to impact forests and poses a potential risk to human health.