Syrphid Fly (IMAGE) Washington State University Caption Syrphid flies also known as hover flies can act as pollinators. Credit Rae Olsson, Washington State University Usage Restrictions For use with articles related to this study. License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.