Sawfly larva

We saw this little guy on a botanizing day on Raymond Nadeau's ranchland, west of Head-smashed-in Buffalo Jump, way down south towards the US/Canada border just over a month ago. I still haven't been able to find it on Google - if I ever get time, I need to post it on one of the Bug websites. It was such a beautiful colour.

Later: many thanks to Dr. Ted Pike (Calgary) for the ID - a Sawfly larva. "Sawflies are a relative of bees and wasps. There are three or four families of these things which feed on leaves just like this one. I can't tell you more without an adult specimen to key out.". ID much appreciated.

en.wikipedia.org/wiki/Sawfly