Syrphid flies eat aphids! June 2, 2014 posted by Sloat Garden Center TweetPin itEmail The larvae of syrphid flies resemble a green caterpillar, and the adults are often confused with bees. They do in fact eat aphids with relish! Read more about Syrphid flies at UC Davis > Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *CommentName * Email * Website Save my name, email, and website in this browser for the next time I comment. Verification 72 − = 69 Curious if we have your favorite plant or product in stock? Call one of our locations directly and we'll be happy to check.