Amenagerie

Hi, I impulsively bought some roaches at an exotic expo recently. They were sold to me as "death head" roaches. Wellllllllll, I've been to a lot of internet sites researching roaches and that's not what they are. The best I can tell, these are "Giant Cave Roaches". I bought them in early March and they have since molted into what I'm assuming is their adult form. I wish I'd taken pics of them before, but I'm sure those who know more about them know what they looked like prior to this. My questions are: 1. ARE these Giant Cave roaches? and 2. How do I sex them? I've been on the internet for days literally trying to find out and the best I can get is something about some hairs between the antenna on males. I can't find anything like that and don't know what I'm looking for. A couple of them are getting tattered wings, so can I assume these are probably males that are fighting? If so, should I separate them? Hmm, I guess that was more than a couple questions. These roaches are really intriguing me. They're beautiful IMO. I wanna do the best I can for them.