The Dragonfly-like Meganeuropsis was a giant insect that plied the skies from the Late Carboniferous to the Late Permian, some 317 to 247 million years ago. It had a wingspan of some 28″ with a body length of around 17.”
Click here to read the rest of the article.: The largest insect that ever lived, the Dragonfly-like Meganeuropsis, had a wingspan of 28″ / Boing Boing