This giant lacewing may hint at hidden populations of the insect in Arkansas. Michael Skvarla/Penn State Back in 2012, entomologist Michael Skvarla stopped at a Walmart in Fayetteville, Arkansas, to pick up some milk. On the way in, he spotted a large, unusual insect on the side of the building. So he snagged it, took it shopping, brought it home and mounted it, thinking it was an antlion, a type of flying insect. Years later, he discovered it was something much rarer: an insect with an ancient history. Penn State shared the story of Skvarla's find on Monday. Skvarla is...