Invasive Asian insects spreading across 20 US states can cause hives, vomiting and even death

The spotted lanternfly might be the least of your worries this summer.Experts are sounding the alarm about the Asian needle ant — a tiny but dangerous insect moving across the US whose sting can lead to severe and even deadly reactions.As Americans flock outdoors to soak up the sunshine, scientists are urging caution so that your summertime fun doesn’t end with a trip to the emergency room.Known to scientists as Brachyponera chinensis, the Asian needle ant hails from China, Japan and the Koreas.It was first spotted in the States back in the 1930s, according to a report by the US Forest Service (USFS).These ants are small — about 0.2 inches long — with shiny dark brown to black bodies.

They’re often mistaken for other species, making them easy to miss.Asian needle ants have popped up in 20 states so far, mainly in the Northeast and Southeast, but reports have come in from as far as Wisconsin, Arkansas, and Washington, according to antmaps.org.These pests can survive cooler weather and start appearing as early as March, but their numbers peak in June and July.Asian needle ants are often found in moist, shaded areas, like leaf litter, under rocks and inside dead logs.They can also nest in potted plants, under wood piles and in lawns.“People don’t typically notice them,” Dan Suiter, a professor of urban entomology at the University of Georgia, recently told the university. “Unlike, say, fire ants, which build a mound, the Asian needle ant doesn’t establish foraging trails — those lines of ants you can see.”Asian needle ants aren’t as aggressive as fire ants and usually flee from humans.

But when disturbed — like if you reach into their mulch or wood piles — they’ll sting in self-defense.And that sting packs a punch.“Imagine somebody inserting a needle directly into your flesh,” Benoit Guénard, a professor of ecology and entomology at the University of Hong Kong who studied the ants in North Carolina, told USA Today.“It’s a v...