Experts are warning that invasive species spreading across the U.S. pose “medically significant” and “life-threatening” risks. For instance, Asian needle ants, which were first found in China and South Korea, made their way to the U.S. in the 1930s but have largely gone unnoticed for decades. Dan Sweeter, a professor of urban entomology at the University of Georgia, discussed this issue with Fox News Digital.
These ants now inhabit 19 states, and last year, three individuals required hospitalization due to anaphylactic shock from bites. While the ants mainly spread through southeastern states, there have also been sightings in Washington and potential reports from Texas that need verification.
“I thought it was important to raise awareness about these little known creatures,” Sweeter explained. “They tend to hide in leaf litter and shaded areas under hardwood trees.” A research report from the U.S. Forest Service highlighted that the painful stings of Asian needle ants can be notably distressing.
Recalling his experience, Sweeter mentioned, “When I got stung, it felt strange… the pain subsides, but then it can come back unexpectedly, sometimes even days later.” There may only have been three reported cases recently, but it’s likely that more incidents could go unnoticed due to misdiagnosis, as he suspects some emergency room visits might have involved undetected stings from these ants.
Environmental implications
Unlike most ants that tend to follow established trails, Asian needle ants are more solitary and predatory. “It’s kind of puzzling, they can appear almost lost,” Sweeter remarked. These ants invade dense forests and nest under different debris like logs and stones.
Invasive species are categorized by the Federal Register as non-native organisms that can lead to environmental or economic harm. “What’s troubling is that Asian needle ants might usurp other ant species that play critical roles in seed dispersion,” the Forest Service noted. Sweeter pointed out that these invasive ants are “wiping out” native ant populations in American forests.
When Asian needle ants infiltrate forests, they could potentially disrupt the growth and health of local plant life. It’s common to find them in residential areas, nesting under various materials like mulch and paving.
What to do if you get stung
If someone has sensitivity to other stinging insects, they should be particularly cautious around Asian needle ants, as the risk of anaphylaxis is heightened. If stung, it’s advisable to capture the insect if possible and bring it to a medical professional for accurate identification. If you suspect you’ve encountered these invasive ants but haven’t been stung, contacting a local extension agent for guidance is a good next step.
