The chrysalis has darkened considerably over several days. Looking at it this morning, I could see details of the butterfly and knew it was about to emerge. This is 10 minutes before its emergence at 9:53 a.m. The few I've watched over the years usually emerge in mid-morning.Note that there is normally a silk sling steadying the chrysalis to the substrate. I had dropped this one while transporting it to show a friend, and the silk lines broke. (OOPS!) Luckily, the chrysalis case is tough.