The often wingless wasp Sclerodermus macrogaster had never been reported infesting a home in North America, until a resident in Florida sent a specimen to Penn State University’s entomology extension service, saying he had also been stung by the insect. The species identification wasn’t immediately clear and sent PSU’s Michael Skvarla, Ph.D., on a hunt for the answer. (Image originally published in Skvarla 2018, Journal of Medical Entomology)