A group of scientists announced a rare find Wednesday – the fossilized remains of a giant bug that crawled around Utah during the time of the dinosaurs.

Called “Morrisonnepa jurassica,” the insect roamed the region 151 million years ago and was discovered in the same geological formation as Allosaurus and Stegosaurus.

It appears to be related to modern giant water bugs, or Belostomatidae, which prey on fish, amphibians, snakes and invertebrates. The bugs are also known for their excruciating bite.