The Hover Fly and Its Migration Across the Atlantic Ocean

Scientist: Flies in general are the second most important group of pollinading insects. C scott clem is an insecticologist at the university of georgia, and he's been studying a type of fly known as a hover fly. They seem to originate near ontario, canada, and then they fly hundreds of miles south to central illinois. And it's possible that some go even further, thousands of miles.