The result appeared in a study which was published last year in the Proceedings of the Entomological Society of Washington. Well, researchers have found that giant lace wing fossils date back to around 165,000,000 years ago, during the Jurassic era. The one found in Arkansas has a wingspan of about two inches. Scientists are unsure why the lace wing appeared from eastern North America predators or urbanizations. Maybe changes in the insect's forest environments may have played a role