I'm not sure if anyone's mentioned it but I was just thinking how amusing it is that the nymphs of this species curl up and play dead. Anyone see this in another species? I haven't noticed it in other Blaberus.
I noticed this behavior with my Blaberus giganteus some years ago. I actually thought they were dead so I put them aside. I left the room and when I came back, the nymph was gone. I found it some days later on the floor and put it back in the roachbox. They don't even move when I dig in the substrate or pick them up, very convincing!