The simple black head capsule is a common character in the Arctiinae. It is intriguing with the paired dark tussocks on A1. Is in in your protective custody to see what moth it develops into?
No sorry. I did not have a container with me and this one and the other i posted were on the handrail so not sure what to feed them anyway. The last one i took into custody i gave plant material it was on and some apple but it died.