Since I haven't tried to will myself to do this lucid task, I'm surprised I had a non-lucid with something related happening. It was the advance task, except only watching a catepillar putting itself into a cacoon. It didn't turn into a butterfly, its form changed into something else I remember vaguely, a symbol hanging on a string of some sort.

I was more concerned with the colony of roaches nearby living on an inadequet food supply of flower nectar, as evidenced by their paper thin abdomens.