Saw Fly Larva

6220 What is this and is it harmful to my flowerbeds grass. There are a whole bunch of them between mine and my neighbors house. From Leduc, Alberta.

Number 6220 – This is a larva of a sawfly, it might be a grass sawfly in the genus Pachynematus (Hymenoptera: Tenthredinidae); Click here for an image. They are unlikely to cause significant damage; Click here for more detailed information.