I will try to take a picture next time I see them, but they were thin and green and there would be a few of them crawling around a single mulberry. As I recall, the length of their bodies was hardly as long as the individual drupelets on the mulberry, if that. So they just look kind of like little green slivers gliding about at a moderate pace because I couldn't see the feet even though they must have had them based on the way they moved.
And just to clarify 'thin', I mean proportionally their bodies were long compared to the width.