cremaster that attaches to the silk pad forms that has little barbs on the end and with more wriggling, hooks into the silk pad much like hook and loop tape (aka Velcro TM) works. As a result it is firmly attached and will hang in that position for about 10 days.
The 12 hour old chrysalis of 2015-1 has now formed the lovely gold dots around the edge.
I like this stage because I don't have to run out and find milkweed a couple of times a day to feed them. And there's no more of their poop to remove from the container.
However, the other 5 (Pupae 2015-6 through 2015-10) that have hatched are grown by leaps and bounds and are still in their separate nurseries (canning jars). I do need to give them fresh milkweed (with the stem wrapped in wet paper towel) every couple of days. Soon the feedings will be daily. Then I'll be able to put them together in containers and go through the rest of the larval process again.