Researchers in Canada have identified a new species of praying mantis that lived 100 million years ago during the Cretaceous period. Two incredibly preserved fossils belonging to Labradormantis guilbaulti were found in an abandoned iron mine in Labrador, near the border with Quebec. Using a relatively new imaging process, they were able to examine veins in the fossilized insect's wings that connected it to its modern-day descendant. The discovery helps establish evolutionary relationships between previously known mantis species and sheds light on wing evolution among mantises and related insects. Scroll down for video They noticed a vein on the hind-wing's folding line that exists in contemporary mantises in the Chaeteessidae family. That suggests the trait didn't evolve among Chaeteessidae in isolation, but was present in their ancestors, too